From b8ec17fd8080071d8f0bf357f7bb08b4c0bff77a Mon Sep 17 00:00:00 2001 From: Tyler Lambe Date: Thu, 9 Jan 2020 16:14:35 -0500 Subject: [PATCH 1/4] adds solutions --- 2-scopes/README.md | 51 +- 2-scopes/SpecRunner.html | 21 + 2-scopes/functions.js | 185 + 2-scopes/lib/chai/chai.js | 4000 +++++++++++++++++++++ 2-scopes/lib/mocha/mocha.css | 246 ++ 2-scopes/lib/mocha/mocha.js | 5338 ++++++++++++++++++++++++++++ 3-higher-order-functions/README.md | 260 +- README.md | 59 +- 8 files changed, 9799 insertions(+), 361 deletions(-) create mode 100755 2-scopes/SpecRunner.html create mode 100644 2-scopes/functions.js create mode 100755 2-scopes/lib/chai/chai.js create mode 100755 2-scopes/lib/mocha/mocha.css create mode 100755 2-scopes/lib/mocha/mocha.js diff --git a/2-scopes/README.md b/2-scopes/README.md index cb3dcfd..4f8f6f8 100644 --- a/2-scopes/README.md +++ b/2-scopes/README.md @@ -1,50 +1,3 @@ -# Part II: Scopes +# Part II: Scopes (Solutions) -*Note: Before getting started on these exercises, please be certain that you've read through the root [README.md](../README.md) file in this repository.* - -To complete these exercises, you will need to download this repo and open this particular folder in a code editor. - -# How to complete these exercises - -#### It is your mission to go through the function.js file and change all the `'???'` in such a way that all the tests pass true. - -### Let's get started... - -Run the specrunner.html file in a web browser. This document will immediately show one passed test and a series of failing tests. - -The **functions.js** file holds all the failing tests that are being displayed in **SpecRunner.html**. You will be editing the **functions.js** file and refreshing the **SpecRunner.html** to check your progress on making the tests pass. This is a regular JavaScript file, so note that you can use `console.log` to help debug and inspect these functions. - -A test block starts with an `it` function. The `it` function takes two arguments. The first one is a statement describing the rule addressed by the test. The second is a function that will either evaluate to true or false using the `expect` function. The expect statement (`expect(ACTUAL === 'inner').to.be.true;`) will evaluate if the statement between the parens `ACTUAL === 'inner'` is true. You can almost read it like plain English. The expect statement below "expects that the variable ACTUAL equals the value 'inner' to be true". - -#### Failing Test Example - - it('a function has access to its own local scope variables', - - function () { - var fn = function () { - var name = 'inner'; - ACTUAL = name; - }; - fn(); - expect(ACTUAL === '???').to.be.true; - //change '???' to what ACTUAL evaluates to. - }); - -#### Passing Test Example - - it('a function has access to its own local scope variables', - - function () { - var fn = function () { - var name = 'inner'; - ACTUAL = name; - }; - fn(); - expect(ACTUAL === 'inner').to.be.true; - //changed '???' to 'inner' - //(because we assigned ACTUAL, a global variable to name inside fn) - }); - -### Don't forget.. - -You should thoroughly read all of code in front of you and aim to understand line-by-line what is happening. +Please see the `functions.js` file for the complete solution. diff --git a/2-scopes/SpecRunner.html b/2-scopes/SpecRunner.html new file mode 100755 index 0000000..6d98eb0 --- /dev/null +++ b/2-scopes/SpecRunner.html @@ -0,0 +1,21 @@ + + + + + Hack Reactor Scopes Exercises + + + +

+ + + + + + + + + + + + diff --git a/2-scopes/functions.js b/2-scopes/functions.js new file mode 100644 index 0000000..47c49ed --- /dev/null +++ b/2-scopes/functions.js @@ -0,0 +1,185 @@ +(function () { + + + describe('Function & Scopes Exercises', function () { + + var ACTUAL; + + // This resets the value of ACTUAL (to null) before each test is run + beforeEach(function () { + ACTUAL = null; + }); + + it('a function has access to its own local scope variables', function () { + var fn = function () { + var name = 'inner'; + ACTUAL = name; + }; + fn(); + // This test should already be passing + expect(ACTUAL === 'inner').to.be.true; + }); + + it('inputs to a function are treated as local scope variables', function () { + var fn = function (name) { + ACTUAL = name; + }; + fn('inner'); + expect(ACTUAL === 'inner').to.be.true; + }); + + it('a function has access to the variables contained within the same scope that function was created in', function () { + var name = 'outer'; + var fn = function () { + ACTUAL = name; + }; + fn(); + expect(ACTUAL === 'outer').to.be.true; + }); + + it('a function\'s local scope variables are not available anywhere outside that function', function () { + var firstFn = function () { + var localToFirstFn = 'inner'; + }; + firstFn(); + expect(function () { + ACTUAL = localToFirstFn; + }).to.throw(); + + expect(ACTUAL === null).to.be.true; + }); + + it('a function\'s local scope variables are not available anywhere outside that function, regardless of the context it\'s called in', function () { + var firstFn = function () { + var localToFirstFn = 'first'; + // Although false, it might seem reasonable to think that the secondFn (which mentions the localToFirstFn variable), should have access to the localToFirstFn variable, since it's being called here from within the scope where that variable is declared. + secondFn(); + }; + var secondFn = function () { + ACTUAL = localToFirstFn; + }; + expect(function () { + // of course, calling the secondFn should throw an error in this case, since secondFn does not have access to the localToFirstFn variable + secondFn(); + }).to.throw(); + expect(function () { + // in addition, calling the firstFn (which in turn calls the secondFn) should also throw, since it the calling context of secondFn has no influence over its scope access rules + firstFn(); + }).to.throw(); + expect(ACTUAL === null).to.be.true; + }); + + it('if an inner and an outer variable share the same name, and the name is referenced in the inner scope, the inner scope variable masks the variable from the outer scope with the same name. This renders the outer scope variables inaccassible from anywhere within the inner function block', function () { + var sameName = 'outer'; + var fn = function () { + var sameName = 'inner'; + ACTUAL = sameName; + }; + fn(); + expect(ACTUAL === 'inner').to.be.true; + }); + + it('if an inner and an outer variable share the same name, and the name is referenced in the outer scope, the outer value binding will be used', function () { + var sameName = 'outer'; + var fn = function () { + var sameName = 'inner'; + }; + fn(); + ACTUAL = sameName; + expect(ACTUAL === 'outer').to.be.true; + }); + + it('a new variable scope is created for every call to a function, as exemplified with a counter', function () { + var fn = function () { + // the `||` symbol here is being used to set a default value for innerCounter. If innerCounter already contains a truthy value, then the value in that variable will be unchanged. If it is falsey however (such as if it were completely uninitialized), then this line will set it to the default value of 10. + var innerCounter = innerCounter || 10; + innerCounter = innerCounter + 1; + ACTUAL = innerCounter; + }; + + fn(); + expect(ACTUAL === 11).to.be.true; + fn(); + expect(ACTUAL === 11).to.be.true; + }); + + it('a new variable scope is created for each call to a function, as exemplified with uninitialized string variable', function () { + // this is a longer form of the same observation as above, using strings in stead of numbers. + var fn = function () { + var localVariable; + if (localVariable === undefined) { + // the variable will be initialized for the first time during this call to fn + ACTUAL = 'alpha'; + } else if (localVariable === 'initialized') { + // the variable has already been initialized by a previous call to fn + ACTUAL = 'omega'; + } + // now that actual has been set, we will initialize localVariable to refer to a string + localVariable = 'initialized'; + }; + + fn(); + expect(ACTUAL === 'alpha').to.be.true; + fn(); + expect(ACTUAL === 'alpha').to.be.true; + }); + + it('an inner function can access both its local scope variables and variables in its containing scope, provided the variables have different names', function () { + var outerName = 'outer'; + var fn = function () { + var innerName = 'inner'; + ACTUAL = innerName + outerName; + }; + fn(); + expect(ACTUAL === 'innerouter').to.be.true; + }); + + it('between calls to an inner function, that inner function retains access to a variable in an outer scope. Modifying those variables has a lasting effect between calls to the inner function.', function () { + var outerCounter = 10; + + var fn = function () { + outerCounter = outerCounter + 1; + ACTUAL = outerCounter; + }; + + fn(); + expect(ACTUAL === 11).to.be.true; + fn(); + expect(ACTUAL === 12).to.be.true; + }); + + it('the rule about retaining access to variables from an outer scope still applies, even after the outer function call (that created the outer scope) has returned', function () { + var outerFn = function () { + // NOTE: the contents of this function is the same as the entire body of the previous test + var counterInOuterScope = 10; + + var innerIncrementingFn = function () { + counterInOuterScope = counterInOuterScope + 1; + ACTUAL = counterInOuterScope; + console.log(ACTUAL); + }; + + innerIncrementingFn(); + expect(ACTUAL === 11).to.be.true; + innerIncrementingFn(); + expect(ACTUAL === 12).to.be.true; + // Here, we retain a reference to the newly created inner function for later, by assigning it to the global scope (window) + window.retainedInnerFn = innerIncrementingFn; // typeof retainedInnerFn === 'function' + + }; + + // before we run outerFn, there will be no innerFn exported to the global scope + expect(window.retainedInnerFn).to.equal.undefined; + // running this outer function should have the same effect as running the whole previous test, with the addition of placing the innerFn somewhere that we can reach it after outerFn has returned + outerFn(); + expect(window.retainedInnerFn).to.be.a('function'); + // even though the outerFn has returned once the only call to it was completed a couple of lines above, the inner function remains available in the global scope, and still has access to the variables of that containing scope where it was first created. + window.retainedInnerFn(); + expect(ACTUAL === 13).to.be.true; + + outerFn(); + }); + + }); + +})(); diff --git a/2-scopes/lib/chai/chai.js b/2-scopes/lib/chai/chai.js new file mode 100755 index 0000000..70ea53f --- /dev/null +++ b/2-scopes/lib/chai/chai.js @@ -0,0 +1,4000 @@ +!function (name, context, definition) { + if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') { + module.exports = definition(); + } else if (typeof define === 'function' && typeof define.amd === 'object') { + define(function () { + return definition(); + }); + } else { + context[name] = definition(); + } +}('chai', this, function () { + + function require(p) { + var path = require.resolve(p) + , mod = require.modules[path]; + if (!mod) throw new Error('failed to require "' + p + '"'); + if (!mod.exports) { + mod.exports = {}; + mod.call(mod.exports, mod, mod.exports, require.relative(path)); + } + return mod.exports; + } + + require.modules = {}; + + require.resolve = function (path) { + var orig = path + , reg = path + '.js' + , index = path + '/index.js'; + return require.modules[reg] && reg + || require.modules[index] && index + || orig; + }; + + require.register = function (path, fn) { + require.modules[path] = fn; + }; + + require.relative = function (parent) { + return function (p) { + if ('.' != p.charAt(0)) return require(p); + + var path = parent.split('/') + , segs = p.split('/'); + path.pop(); + + for (var i = 0; i < segs.length; i++) { + var seg = segs[i]; + if ('..' == seg) path.pop(); + else if ('.' != seg) path.push(seg); + } + + return require(path.join('/')); + }; + }; + + require.alias = function (from, to) { + var fn = require.modules[from]; + require.modules[to] = fn; + }; + + + require.register("chai.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + var used = [] + , exports = module.exports = {}; + + /*! + * Chai version + */ + + exports.version = '1.5.0'; + + /*! + * Primary `Assertion` prototype + */ + + exports.Assertion = require('./chai/assertion'); + + /*! + * Assertion Error + */ + + exports.AssertionError = require('./chai/error'); + + /*! + * Utils for plugins (not exported) + */ + + var util = require('./chai/utils'); + + /** + * # .use(function) + * + * Provides a way to extend the internals of Chai + * + * @param {Function} + * @returns {this} for chaining + * @api public + */ + + exports.use = function (fn) { + if (!~used.indexOf(fn)) { + fn(this, util); + used.push(fn); + } + + return this; + }; + + /*! + * Core Assertions + */ + + var core = require('./chai/core/assertions'); + exports.use(core); + + /*! + * Expect interface + */ + + var expect = require('./chai/interface/expect'); + exports.use(expect); + + /*! + * Should interface + */ + + var should = require('./chai/interface/should'); + exports.use(should); + + /*! + * Assert interface + */ + + var assert = require('./chai/interface/assert'); + exports.use(assert); + + }); // module: chai.js + + require.register("chai/assertion.js", function (module, exports, require) { + /*! + * chai + * http://chaijs.com + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Module dependencies. + */ + + var AssertionError = require('./error') + , util = require('./utils') + , flag = util.flag; + + /*! + * Module export. + */ + + module.exports = Assertion; + + + /*! + * Assertion Constructor + * + * Creates object for chaining. + * + * @api private + */ + + function Assertion(obj, msg, stack) { + flag(this, 'ssfi', stack || arguments.callee); + flag(this, 'object', obj); + flag(this, 'message', msg); + } + + /*! + * ### Assertion.includeStack + * + * User configurable property, influences whether stack trace + * is included in Assertion error message. Default of false + * suppresses stack trace in the error message + * + * Assertion.includeStack = true; // enable stack on error + * + * @api public + */ + + Assertion.includeStack = false; + + /*! + * ### Assertion.showDiff + * + * User configurable property, influences whether or not + * the `showDiff` flag should be included in the thrown + * AssertionErrors. `false` will always be `false`; `true` + * will be true when the assertion has requested a diff + * be shown. + * + * @api public + */ + + Assertion.showDiff = true; + + Assertion.addProperty = function (name, fn) { + util.addProperty(this.prototype, name, fn); + }; + + Assertion.addMethod = function (name, fn) { + util.addMethod(this.prototype, name, fn); + }; + + Assertion.addChainableMethod = function (name, fn, chainingBehavior) { + util.addChainableMethod(this.prototype, name, fn, chainingBehavior); + }; + + Assertion.overwriteProperty = function (name, fn) { + util.overwriteProperty(this.prototype, name, fn); + }; + + Assertion.overwriteMethod = function (name, fn) { + util.overwriteMethod(this.prototype, name, fn); + }; + + /*! + * ### .assert(expression, message, negateMessage, expected, actual) + * + * Executes an expression and check expectations. Throws AssertionError for reporting if test doesn't pass. + * + * @name assert + * @param {Philosophical} expression to be tested + * @param {String} message to display if fails + * @param {String} negatedMessage to display if negated expression fails + * @param {Mixed} expected value (remember to check for negation) + * @param {Mixed} actual (optional) will default to `this.obj` + * @api private + */ + + Assertion.prototype.assert = function (expr, msg, negateMsg, expected, _actual, showDiff) { + var ok = util.test(this, arguments); + if (true !== showDiff) showDiff = false; + if (true !== Assertion.showDiff) showDiff = false; + + if (!ok) { + var msg = util.getMessage(this, arguments) + , actual = util.getActual(this, arguments); + throw new AssertionError({ + message: msg + , actual: actual + , expected: expected + , stackStartFunction: (Assertion.includeStack) ? this.assert : flag(this, 'ssfi') + , showDiff: showDiff + }); + } + }; + + /*! + * ### ._obj + * + * Quick reference to stored `actual` value for plugin developers. + * + * @api private + */ + + Object.defineProperty(Assertion.prototype, '_obj', + { + get: function () { + return flag(this, 'object'); + } + , set: function (val) { + flag(this, 'object', val); + } + }); + + }); // module: chai/assertion.js + + require.register("chai/core/assertions.js", function (module, exports, require) { + /*! + * chai + * http://chaijs.com + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + module.exports = function (chai, _) { + var Assertion = chai.Assertion + , toString = Object.prototype.toString + , flag = _.flag; + + /** + * ### Language Chains + * + * The following are provide as chainable getters to + * improve the readability of your assertions. They + * do not provide an testing capability unless they + * have been overwritten by a plugin. + * + * **Chains** + * + * - to + * - be + * - been + * - is + * - that + * - and + * - have + * - with + * - at + * - of + * + * @name language chains + * @api public + */ + + ['to', 'be', 'been' + , 'is', 'and', 'have' + , 'with', 'that', 'at' + , 'of'].forEach(function (chain) { + Assertion.addProperty(chain, function () { + return this; + }); + }); + + /** + * ### .not + * + * Negates any of assertions following in the chain. + * + * expect(foo).to.not.equal('bar'); + * expect(goodFn).to.not.throw(Error); + * expect({ foo: 'baz' }).to.have.property('foo') + * .and.not.equal('bar'); + * + * @name not + * @api public + */ + + Assertion.addProperty('not', function () { + flag(this, 'negate', true); + }); + + /** + * ### .deep + * + * Sets the `deep` flag, later used by the `equal` and + * `property` assertions. + * + * expect(foo).to.deep.equal({ bar: 'baz' }); + * expect({ foo: { bar: { baz: 'quux' } } }) + * .to.have.deep.property('foo.bar.baz', 'quux'); + * + * @name deep + * @api public + */ + + Assertion.addProperty('deep', function () { + flag(this, 'deep', true); + }); + + /** + * ### .a(type) + * + * The `a` and `an` assertions are aliases that can be + * used either as language chains or to assert a value's + * type. + * + * // typeof + * expect('test').to.be.a('string'); + * expect({ foo: 'bar' }).to.be.an('object'); + * expect(null).to.be.a('null'); + * expect(undefined).to.be.an('undefined'); + * + * // language chain + * expect(foo).to.be.an.instanceof(Foo); + * + * @name a + * @alias an + * @param {String} type + * @param {String} message _optional_ + * @api public + */ + + function an(type, msg) { + if (msg) flag(this, 'message', msg); + type = type.toLowerCase(); + var obj = flag(this, 'object') + , article = ~['a', 'e', 'i', 'o', 'u'].indexOf(type.charAt(0)) ? 'an ' : 'a '; + + this.assert( + type === _.type(obj) + , 'expected #{this} to be ' + article + type + , 'expected #{this} not to be ' + article + type + ); + } + + Assertion.addChainableMethod('an', an); + Assertion.addChainableMethod('a', an); + + /** + * ### .include(value) + * + * The `include` and `contain` assertions can be used as either property + * based language chains or as methods to assert the inclusion of an object + * in an array or a substring in a string. When used as language chains, + * they toggle the `contain` flag for the `keys` assertion. + * + * expect([1,2,3]).to.include(2); + * expect('foobar').to.contain('foo'); + * expect({ foo: 'bar', hello: 'universe' }).to.include.keys('foo'); + * + * @name include + * @alias contain + * @param {Object|String|Number} obj + * @param {String} message _optional_ + * @api public + */ + + function includeChainingBehavior() { + flag(this, 'contains', true); + } + + function include(val, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object') + this.assert( + ~obj.indexOf(val) + , 'expected #{this} to include ' + _.inspect(val) + , 'expected #{this} to not include ' + _.inspect(val)); + } + + Assertion.addChainableMethod('include', include, includeChainingBehavior); + Assertion.addChainableMethod('contain', include, includeChainingBehavior); + + /** + * ### .ok + * + * Asserts that the target is truthy. + * + * expect('everthing').to.be.ok; + * expect(1).to.be.ok; + * expect(false).to.not.be.ok; + * expect(undefined).to.not.be.ok; + * expect(null).to.not.be.ok; + * + * @name ok + * @api public + */ + + Assertion.addProperty('ok', function () { + this.assert( + flag(this, 'object') + , 'expected #{this} to be truthy' + , 'expected #{this} to be falsy'); + }); + + /** + * ### .true + * + * Asserts that the target is `true`. + * + * expect(true).to.be.true; + * expect(1).to.not.be.true; + * + * @name true + * @api public + */ + + Assertion.addProperty('true', function () { + this.assert( + true === flag(this, 'object') + , 'expected #{this} to be true' + , 'expected #{this} to be false' + , this.negate ? false : true + ); + }); + + /** + * ### .false + * + * Asserts that the target is `false`. + * + * expect(false).to.be.false; + * expect(0).to.not.be.false; + * + * @name false + * @api public + */ + + Assertion.addProperty('false', function () { + this.assert( + false === flag(this, 'object') + , 'expected #{this} to be false' + , 'expected #{this} to be true' + , this.negate ? true : false + ); + }); + + /** + * ### .null + * + * Asserts that the target is `null`. + * + * expect(null).to.be.null; + * expect(undefined).not.to.be.null; + * + * @name null + * @api public + */ + + Assertion.addProperty('null', function () { + this.assert( + null === flag(this, 'object') + , 'expected #{this} to be null' + , 'expected #{this} not to be null' + ); + }); + + /** + * ### .undefined + * + * Asserts that the target is `undefined`. + * + * expect(undefined).to.be.undefined; + * expect(null).to.not.be.undefined; + * + * @name undefined + * @api public + */ + + Assertion.addProperty('undefined', function () { + this.assert( + undefined === flag(this, 'object') + , 'expected #{this} to be undefined' + , 'expected #{this} not to be undefined' + ); + }); + + /** + * ### .exist + * + * Asserts that the target is neither `null` nor `undefined`. + * + * var foo = 'hi' + * , bar = null + * , baz; + * + * expect(foo).to.exist; + * expect(bar).to.not.exist; + * expect(baz).to.not.exist; + * + * @name exist + * @api public + */ + + Assertion.addProperty('exist', function () { + this.assert( + null != flag(this, 'object') + , 'expected #{this} to exist' + , 'expected #{this} to not exist' + ); + }); + + + /** + * ### .empty + * + * Asserts that the target's length is `0`. For arrays, it checks + * the `length` property. For objects, it gets the count of + * enumerable keys. + * + * expect([]).to.be.empty; + * expect('').to.be.empty; + * expect({}).to.be.empty; + * + * @name empty + * @api public + */ + + Assertion.addProperty('empty', function () { + var obj = flag(this, 'object') + , expected = obj; + + if (Array.isArray(obj) || 'string' === typeof object) { + expected = obj.length; + } else if (typeof obj === 'object') { + expected = Object.keys(obj).length; + } + + this.assert( + !expected + , 'expected #{this} to be empty' + , 'expected #{this} not to be empty' + ); + }); + + /** + * ### .arguments + * + * Asserts that the target is an arguments object. + * + * function test () { + * expect(arguments).to.be.arguments; + * } + * + * @name arguments + * @alias Arguments + * @api public + */ + + function checkArguments() { + var obj = flag(this, 'object') + , type = Object.prototype.toString.call(obj); + this.assert( + '[object Arguments]' === type + , 'expected #{this} to be arguments but got ' + type + , 'expected #{this} to not be arguments' + ); + } + + Assertion.addProperty('arguments', checkArguments); + Assertion.addProperty('Arguments', checkArguments); + + /** + * ### .equal(value) + * + * Asserts that the target is strictly equal (`===`) to `value`. + * Alternately, if the `deep` flag is set, asserts that + * the target is deeply equal to `value`. + * + * expect('hello').to.equal('hello'); + * expect(42).to.equal(42); + * expect(1).to.not.equal(true); + * expect({ foo: 'bar' }).to.not.equal({ foo: 'bar' }); + * expect({ foo: 'bar' }).to.deep.equal({ foo: 'bar' }); + * + * @name equal + * @alias equals + * @alias eq + * @alias deep.equal + * @param {Mixed} value + * @param {String} message _optional_ + * @api public + */ + + function assertEqual(val, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + if (flag(this, 'deep')) { + return this.eql(val); + } else { + this.assert( + val === obj + , 'expected #{this} to equal #{exp}' + , 'expected #{this} to not equal #{exp}' + , val + , this._obj + , true + ); + } + } + + Assertion.addMethod('equal', assertEqual); + Assertion.addMethod('equals', assertEqual); + Assertion.addMethod('eq', assertEqual); + + /** + * ### .eql(value) + * + * Asserts that the target is deeply equal to `value`. + * + * expect({ foo: 'bar' }).to.eql({ foo: 'bar' }); + * expect([ 1, 2, 3 ]).to.eql([ 1, 2, 3 ]); + * + * @name eql + * @alias eqls + * @param {Mixed} value + * @param {String} message _optional_ + * @api public + */ + + function assertEql(obj, msg) { + if (msg) flag(this, 'message', msg); + this.assert( + _.eql(obj, flag(this, 'object')) + , 'expected #{this} to deeply equal #{exp}' + , 'expected #{this} to not deeply equal #{exp}' + , obj + , this._obj + , true + ); + } + + Assertion.addMethod('eql', assertEql); + Assertion.addMethod('eqls', assertEql); + + /** + * ### .above(value) + * + * Asserts that the target is greater than `value`. + * + * expect(10).to.be.above(5); + * + * Can also be used in conjunction with `length` to + * assert a minimum length. The benefit being a + * more informative error message than if the length + * was supplied directly. + * + * expect('foo').to.have.length.above(2); + * expect([ 1, 2, 3 ]).to.have.length.above(2); + * + * @name above + * @alias gt + * @alias greaterThan + * @param {Number} value + * @param {String} message _optional_ + * @api public + */ + + function assertAbove(n, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + if (flag(this, 'doLength')) { + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + this.assert( + len > n + , 'expected #{this} to have a length above #{exp} but got #{act}' + , 'expected #{this} to not have a length above #{exp}' + , n + , len + ); + } else { + this.assert( + obj > n + , 'expected #{this} to be above ' + n + , 'expected #{this} to be at most ' + n + ); + } + } + + Assertion.addMethod('above', assertAbove); + Assertion.addMethod('gt', assertAbove); + Assertion.addMethod('greaterThan', assertAbove); + + /** + * ### .least(value) + * + * Asserts that the target is greater than or equal to `value`. + * + * expect(10).to.be.at.least(10); + * + * Can also be used in conjunction with `length` to + * assert a minimum length. The benefit being a + * more informative error message than if the length + * was supplied directly. + * + * expect('foo').to.have.length.of.at.least(2); + * expect([ 1, 2, 3 ]).to.have.length.of.at.least(3); + * + * @name least + * @alias gte + * @param {Number} value + * @param {String} message _optional_ + * @api public + */ + + function assertLeast(n, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + if (flag(this, 'doLength')) { + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + this.assert( + len >= n + , 'expected #{this} to have a length at least #{exp} but got #{act}' + , 'expected #{this} to have a length below #{exp}' + , n + , len + ); + } else { + this.assert( + obj >= n + , 'expected #{this} to be at least ' + n + , 'expected #{this} to be below ' + n + ); + } + } + + Assertion.addMethod('least', assertLeast); + Assertion.addMethod('gte', assertLeast); + + /** + * ### .below(value) + * + * Asserts that the target is less than `value`. + * + * expect(5).to.be.below(10); + * + * Can also be used in conjunction with `length` to + * assert a maximum length. The benefit being a + * more informative error message than if the length + * was supplied directly. + * + * expect('foo').to.have.length.below(4); + * expect([ 1, 2, 3 ]).to.have.length.below(4); + * + * @name below + * @alias lt + * @alias lessThan + * @param {Number} value + * @param {String} message _optional_ + * @api public + */ + + function assertBelow(n, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + if (flag(this, 'doLength')) { + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + this.assert( + len < n + , 'expected #{this} to have a length below #{exp} but got #{act}' + , 'expected #{this} to not have a length below #{exp}' + , n + , len + ); + } else { + this.assert( + obj < n + , 'expected #{this} to be below ' + n + , 'expected #{this} to be at least ' + n + ); + } + } + + Assertion.addMethod('below', assertBelow); + Assertion.addMethod('lt', assertBelow); + Assertion.addMethod('lessThan', assertBelow); + + /** + * ### .most(value) + * + * Asserts that the target is less than or equal to `value`. + * + * expect(5).to.be.at.most(5); + * + * Can also be used in conjunction with `length` to + * assert a maximum length. The benefit being a + * more informative error message than if the length + * was supplied directly. + * + * expect('foo').to.have.length.of.at.most(4); + * expect([ 1, 2, 3 ]).to.have.length.of.at.most(3); + * + * @name most + * @alias lte + * @param {Number} value + * @param {String} message _optional_ + * @api public + */ + + function assertMost(n, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + if (flag(this, 'doLength')) { + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + this.assert( + len <= n + , 'expected #{this} to have a length at most #{exp} but got #{act}' + , 'expected #{this} to have a length above #{exp}' + , n + , len + ); + } else { + this.assert( + obj <= n + , 'expected #{this} to be at most ' + n + , 'expected #{this} to be above ' + n + ); + } + } + + Assertion.addMethod('most', assertMost); + Assertion.addMethod('lte', assertMost); + + /** + * ### .within(start, finish) + * + * Asserts that the target is within a range. + * + * expect(7).to.be.within(5,10); + * + * Can also be used in conjunction with `length` to + * assert a length range. The benefit being a + * more informative error message than if the length + * was supplied directly. + * + * expect('foo').to.have.length.within(2,4); + * expect([ 1, 2, 3 ]).to.have.length.within(2,4); + * + * @name within + * @param {Number} start lowerbound inclusive + * @param {Number} finish upperbound inclusive + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('within', function (start, finish, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object') + , range = start + '..' + finish; + if (flag(this, 'doLength')) { + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + this.assert( + len >= start && len <= finish + , 'expected #{this} to have a length within ' + range + , 'expected #{this} to not have a length within ' + range + ); + } else { + this.assert( + obj >= start && obj <= finish + , 'expected #{this} to be within ' + range + , 'expected #{this} to not be within ' + range + ); + } + }); + + /** + * ### .instanceof(constructor) + * + * Asserts that the target is an instance of `constructor`. + * + * var Tea = function (name) { this.name = name; } + * , Chai = new Tea('chai'); + * + * expect(Chai).to.be.an.instanceof(Tea); + * expect([ 1, 2, 3 ]).to.be.instanceof(Array); + * + * @name instanceof + * @param {Constructor} constructor + * @param {String} message _optional_ + * @alias instanceOf + * @api public + */ + + function assertInstanceOf(constructor, msg) { + if (msg) flag(this, 'message', msg); + var name = _.getName(constructor); + this.assert( + flag(this, 'object') instanceof constructor + , 'expected #{this} to be an instance of ' + name + , 'expected #{this} to not be an instance of ' + name + ); + }; + + Assertion.addMethod('instanceof', assertInstanceOf); + Assertion.addMethod('instanceOf', assertInstanceOf); + + /** + * ### .property(name, [value]) + * + * Asserts that the target has a property `name`, optionally asserting that + * the value of that property is strictly equal to `value`. + * If the `deep` flag is set, you can use dot- and bracket-notation for deep + * references into objects and arrays. + * + * // simple referencing + * var obj = { foo: 'bar' }; + * expect(obj).to.have.property('foo'); + * expect(obj).to.have.property('foo', 'bar'); + * + * // deep referencing + * var deepObj = { + * green: { tea: 'matcha' } + * , teas: [ 'chai', 'matcha', { tea: 'konacha' } ] + * }; + + * expect(deepObj).to.have.deep.property('green.tea', 'matcha'); + * expect(deepObj).to.have.deep.property('teas[1]', 'matcha'); + * expect(deepObj).to.have.deep.property('teas[2].tea', 'konacha'); + * + * You can also use an array as the starting point of a `deep.property` + * assertion, or traverse nested arrays. + * + * var arr = [ + * [ 'chai', 'matcha', 'konacha' ] + * , [ { tea: 'chai' } + * , { tea: 'matcha' } + * , { tea: 'konacha' } ] + * ]; + * + * expect(arr).to.have.deep.property('[0][1]', 'matcha'); + * expect(arr).to.have.deep.property('[1][2].tea', 'konacha'); + * + * Furthermore, `property` changes the subject of the assertion + * to be the value of that property from the original object. This + * permits for further chainable assertions on that property. + * + * expect(obj).to.have.property('foo') + * .that.is.a('string'); + * expect(deepObj).to.have.property('green') + * .that.is.an('object') + * .that.deep.equals({ tea: 'matcha' }); + * expect(deepObj).to.have.property('teas') + * .that.is.an('array') + * .with.deep.property('[2]') + * .that.deep.equals({ tea: 'konacha' }); + * + * @name property + * @alias deep.property + * @param {String} name + * @param {Mixed} value (optional) + * @param {String} message _optional_ + * @returns value of property for chaining + * @api public + */ + + Assertion.addMethod('property', function (name, val, msg) { + if (msg) flag(this, 'message', msg); + + var descriptor = flag(this, 'deep') ? 'deep property ' : 'property ' + , negate = flag(this, 'negate') + , obj = flag(this, 'object') + , value = flag(this, 'deep') + ? _.getPathValue(name, obj) + : obj[name]; + + if (negate && undefined !== val) { + if (undefined === value) { + msg = (msg != null) ? msg + ': ' : ''; + throw new Error(msg + _.inspect(obj) + ' has no ' + descriptor + _.inspect(name)); + } + } else { + this.assert( + undefined !== value + , 'expected #{this} to have a ' + descriptor + _.inspect(name) + , 'expected #{this} to not have ' + descriptor + _.inspect(name)); + } + + if (undefined !== val) { + this.assert( + val === value + , 'expected #{this} to have a ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}' + , 'expected #{this} to not have a ' + descriptor + _.inspect(name) + ' of #{act}' + , val + , value + ); + } + + flag(this, 'object', value); + }); + + + /** + * ### .ownProperty(name) + * + * Asserts that the target has an own property `name`. + * + * expect('test').to.have.ownProperty('length'); + * + * @name ownProperty + * @alias haveOwnProperty + * @param {String} name + * @param {String} message _optional_ + * @api public + */ + + function assertOwnProperty(name, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + this.assert( + obj.hasOwnProperty(name) + , 'expected #{this} to have own property ' + _.inspect(name) + , 'expected #{this} to not have own property ' + _.inspect(name) + ); + } + + Assertion.addMethod('ownProperty', assertOwnProperty); + Assertion.addMethod('haveOwnProperty', assertOwnProperty); + + /** + * ### .length(value) + * + * Asserts that the target's `length` property has + * the expected value. + * + * expect([ 1, 2, 3]).to.have.length(3); + * expect('foobar').to.have.length(6); + * + * Can also be used as a chain precursor to a value + * comparison for the length property. + * + * expect('foo').to.have.length.above(2); + * expect([ 1, 2, 3 ]).to.have.length.above(2); + * expect('foo').to.have.length.below(4); + * expect([ 1, 2, 3 ]).to.have.length.below(4); + * expect('foo').to.have.length.within(2,4); + * expect([ 1, 2, 3 ]).to.have.length.within(2,4); + * + * @name length + * @alias lengthOf + * @param {Number} length + * @param {String} message _optional_ + * @api public + */ + + function assertLengthChain() { + flag(this, 'doLength', true); + } + + function assertLength(n, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + new Assertion(obj, msg).to.have.property('length'); + var len = obj.length; + + this.assert( + len == n + , 'expected #{this} to have a length of #{exp} but got #{act}' + , 'expected #{this} to not have a length of #{act}' + , n + , len + ); + } + + Assertion.addChainableMethod('length', assertLength, assertLengthChain); + Assertion.addMethod('lengthOf', assertLength, assertLengthChain); + + /** + * ### .match(regexp) + * + * Asserts that the target matches a regular expression. + * + * expect('foobar').to.match(/^foo/); + * + * @name match + * @param {RegExp} RegularExpression + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('match', function (re, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + this.assert( + re.exec(obj) + , 'expected #{this} to match ' + re + , 'expected #{this} not to match ' + re + ); + }); + + /** + * ### .string(string) + * + * Asserts that the string target contains another string. + * + * expect('foobar').to.have.string('bar'); + * + * @name string + * @param {String} string + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('string', function (str, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + new Assertion(obj, msg).is.a('string'); + + this.assert( + ~obj.indexOf(str) + , 'expected #{this} to contain ' + _.inspect(str) + , 'expected #{this} to not contain ' + _.inspect(str) + ); + }); + + + /** + * ### .keys(key1, [key2], [...]) + * + * Asserts that the target has exactly the given keys, or + * asserts the inclusion of some keys when using the + * `include` or `contain` modifiers. + * + * expect({ foo: 1, bar: 2 }).to.have.keys(['foo', 'bar']); + * expect({ foo: 1, bar: 2, baz: 3 }).to.contain.keys('foo', 'bar'); + * + * @name keys + * @alias key + * @param {String...|Array} keys + * @api public + */ + + function assertKeys(keys) { + var obj = flag(this, 'object') + , str + , ok = true; + + keys = keys instanceof Array + ? keys + : Array.prototype.slice.call(arguments); + + if (!keys.length) throw new Error('keys required'); + + var actual = Object.keys(obj) + , len = keys.length; + + // Inclusion + ok = keys.every(function (key) { + return ~actual.indexOf(key); + }); + + // Strict + if (!flag(this, 'negate') && !flag(this, 'contains')) { + ok = ok && keys.length == actual.length; + } + + // Key string + if (len > 1) { + keys = keys.map(function (key) { + return _.inspect(key); + }); + var last = keys.pop(); + str = keys.join(', ') + ', and ' + last; + } else { + str = _.inspect(keys[0]); + } + + // Form + str = (len > 1 ? 'keys ' : 'key ') + str; + + // Have / include + str = (flag(this, 'contains') ? 'contain ' : 'have ') + str; + + // Assertion + this.assert( + ok + , 'expected #{this} to ' + str + , 'expected #{this} to not ' + str + ); + } + + Assertion.addMethod('keys', assertKeys); + Assertion.addMethod('key', assertKeys); + + /** + * ### .throw(constructor) + * + * Asserts that the function target will throw a specific error, or specific type of error + * (as determined using `instanceof`), optionally with a RegExp or string inclusion test + * for the error's message. + * + * var err = new ReferenceError('This is a bad function.'); + * var fn = function () { throw err; } + * expect(fn).to.throw(ReferenceError); + * expect(fn).to.throw(Error); + * expect(fn).to.throw(/bad function/); + * expect(fn).to.not.throw('good function'); + * expect(fn).to.throw(ReferenceError, /bad function/); + * expect(fn).to.throw(err); + * expect(fn).to.not.throw(new RangeError('Out of range.')); + * + * Please note that when a throw expectation is negated, it will check each + * parameter independently, starting with error constructor type. The appropriate way + * to check for the existence of a type of error but for a message that does not match + * is to use `and`. + * + * expect(fn).to.throw(ReferenceError) + * .and.not.throw(/good function/); + * + * @name throw + * @alias throws + * @alias Throw + * @param {ErrorConstructor} constructor + * @param {String|RegExp} expected error message + * @param {String} message _optional_ + * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types + * @api public + */ + + function assertThrows(constructor, errMsg, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + new Assertion(obj, msg).is.a('function'); + + var thrown = false + , desiredError = null + , name = null + , thrownError = null; + + if (arguments.length === 0) { + errMsg = null; + constructor = null; + } else if (constructor && (constructor instanceof RegExp || 'string' === typeof constructor)) { + errMsg = constructor; + constructor = null; + } else if (constructor && constructor instanceof Error) { + desiredError = constructor; + constructor = null; + errMsg = null; + } else if (typeof constructor === 'function') { + name = (new constructor()).name; + } else { + constructor = null; + } + + try { + obj(); + } catch (err) { + // first, check desired error + if (desiredError) { + this.assert( + err === desiredError + , 'expected #{this} to throw #{exp} but #{act} was thrown' + , 'expected #{this} to not throw #{exp}' + , desiredError + , err + ); + + return this; + } + // next, check constructor + if (constructor) { + this.assert( + err instanceof constructor + , 'expected #{this} to throw #{exp} but #{act} was thrown' + , 'expected #{this} to not throw #{exp} but #{act} was thrown' + , name + , err + ); + + if (!errMsg) return this; + } + // next, check message + var message = 'object' === _.type(err) && "message" in err + ? err.message + : '' + err; + + if ((message != null) && errMsg && errMsg instanceof RegExp) { + this.assert( + errMsg.exec(message) + , 'expected #{this} to throw error matching #{exp} but got #{act}' + , 'expected #{this} to throw error not matching #{exp}' + , errMsg + , message + ); + + return this; + } else if ((message != null) && errMsg && 'string' === typeof errMsg) { + this.assert( + ~message.indexOf(errMsg) + , 'expected #{this} to throw error including #{exp} but got #{act}' + , 'expected #{this} to throw error not including #{act}' + , errMsg + , message + ); + + return this; + } else { + thrown = true; + thrownError = err; + } + } + + var actuallyGot = '' + , expectedThrown = name !== null + ? name + : desiredError + ? '#{exp}' //_.inspect(desiredError) + : 'an error'; + + if (thrown) { + actuallyGot = ' but #{act} was thrown' + } + + this.assert( + thrown === true + , 'expected #{this} to throw ' + expectedThrown + actuallyGot + , 'expected #{this} to not throw ' + expectedThrown + actuallyGot + , desiredError + , thrownError + ); + }; + + Assertion.addMethod('throw', assertThrows); + Assertion.addMethod('throws', assertThrows); + Assertion.addMethod('Throw', assertThrows); + + /** + * ### .respondTo(method) + * + * Asserts that the object or class target will respond to a method. + * + * Klass.prototype.bar = function(){}; + * expect(Klass).to.respondTo('bar'); + * expect(obj).to.respondTo('bar'); + * + * To check if a constructor will respond to a static function, + * set the `itself` flag. + * + * Klass.baz = function(){}; + * expect(Klass).itself.to.respondTo('baz'); + * + * @name respondTo + * @param {String} method + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('respondTo', function (method, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object') + , itself = flag(this, 'itself') + , context = ('function' === _.type(obj) && !itself) + ? obj.prototype[method] + : obj[method]; + + this.assert( + 'function' === typeof context + , 'expected #{this} to respond to ' + _.inspect(method) + , 'expected #{this} to not respond to ' + _.inspect(method) + ); + }); + + /** + * ### .itself + * + * Sets the `itself` flag, later used by the `respondTo` assertion. + * + * function Foo() {} + * Foo.bar = function() {} + * Foo.prototype.baz = function() {} + * + * expect(Foo).itself.to.respondTo('bar'); + * expect(Foo).itself.not.to.respondTo('baz'); + * + * @name itself + * @api public + */ + + Assertion.addProperty('itself', function () { + flag(this, 'itself', true); + }); + + /** + * ### .satisfy(method) + * + * Asserts that the target passes a given truth test. + * + * expect(1).to.satisfy(function(num) { return num > 0; }); + * + * @name satisfy + * @param {Function} matcher + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('satisfy', function (matcher, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + this.assert( + matcher(obj) + , 'expected #{this} to satisfy ' + _.objDisplay(matcher) + , 'expected #{this} to not satisfy' + _.objDisplay(matcher) + , this.negate ? false : true + , matcher(obj) + ); + }); + + /** + * ### .closeTo(expected, delta) + * + * Asserts that the target is equal `expected`, to within a +/- `delta` range. + * + * expect(1.5).to.be.closeTo(1, 0.5); + * + * @name closeTo + * @param {Number} expected + * @param {Number} delta + * @param {String} message _optional_ + * @api public + */ + + Assertion.addMethod('closeTo', function (expected, delta, msg) { + if (msg) flag(this, 'message', msg); + var obj = flag(this, 'object'); + this.assert( + Math.abs(obj - expected) <= delta + , 'expected #{this} to be close to ' + expected + ' +/- ' + delta + , 'expected #{this} not to be close to ' + expected + ' +/- ' + delta + ); + }); + + }; + + }); // module: chai/core/assertions.js + + require.register("chai/error.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Main export + */ + + module.exports = AssertionError; + + /** + * # AssertionError (constructor) + * + * Create a new assertion error based on the Javascript + * `Error` prototype. + * + * **Options** + * - message + * - actual + * - expected + * - operator + * - startStackFunction + * + * @param {Object} options + * @api public + */ + + function AssertionError(options) { + options = options || {}; + this.message = options.message; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + this.showDiff = options.showDiff; + + if (options.stackStartFunction && Error.captureStackTrace) { + var stackStartFunction = options.stackStartFunction; + Error.captureStackTrace(this, stackStartFunction); + } + } + + /*! + * Inherit from Error + */ + + AssertionError.prototype = Object.create(Error.prototype); + AssertionError.prototype.name = 'AssertionError'; + AssertionError.prototype.constructor = AssertionError; + + /** + * # toString() + * + * Override default to string method + */ + + AssertionError.prototype.toString = function () { + return this.message; + }; + + }); // module: chai/error.js + + require.register("chai/interface/assert.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + + module.exports = function (chai, util) { + + /*! + * Chai dependencies. + */ + + var Assertion = chai.Assertion + , flag = util.flag; + + /*! + * Module export. + */ + + /** + * ### assert(expression, message) + * + * Write your own test expressions. + * + * assert('foo' !== 'bar', 'foo is not bar'); + * assert(Array.isArray([]), 'empty arrays are arrays'); + * + * @param {Mixed} expression to test for truthiness + * @param {String} message to display on error + * @name assert + * @api public + */ + + var assert = chai.assert = function (express, errmsg) { + var test = new Assertion(null); + test.assert( + express + , errmsg + , '[ negation message unavailable ]' + ); + }; + + /** + * ### .fail(actual, expected, [message], [operator]) + * + * Throw a failure. Node.js `assert` module-compatible. + * + * @name fail + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @param {String} operator + * @api public + */ + + assert.fail = function (actual, expected, message, operator) { + throw new chai.AssertionError({ + actual: actual + , expected: expected + , message: message + , operator: operator + , stackStartFunction: assert.fail + }); + }; + + /** + * ### .ok(object, [message]) + * + * Asserts that `object` is truthy. + * + * assert.ok('everything', 'everything is ok'); + * assert.ok(false, 'this will fail'); + * + * @name ok + * @param {Mixed} object to test + * @param {String} message + * @api public + */ + + assert.ok = function (val, msg) { + new Assertion(val, msg).is.ok; + }; + + /** + * ### .equal(actual, expected, [message]) + * + * Asserts non-strict equality (`==`) of `actual` and `expected`. + * + * assert.equal(3, '3', '== coerces values to strings'); + * + * @name equal + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.equal = function (act, exp, msg) { + var test = new Assertion(act, msg); + + test.assert( + exp == flag(test, 'object') + , 'expected #{this} to equal #{exp}' + , 'expected #{this} to not equal #{act}' + , exp + , act + ); + }; + + /** + * ### .notEqual(actual, expected, [message]) + * + * Asserts non-strict inequality (`!=`) of `actual` and `expected`. + * + * assert.notEqual(3, 4, 'these numbers are not equal'); + * + * @name notEqual + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.notEqual = function (act, exp, msg) { + var test = new Assertion(act, msg); + + test.assert( + exp != flag(test, 'object') + , 'expected #{this} to not equal #{exp}' + , 'expected #{this} to equal #{act}' + , exp + , act + ); + }; + + /** + * ### .strictEqual(actual, expected, [message]) + * + * Asserts strict equality (`===`) of `actual` and `expected`. + * + * assert.strictEqual(true, true, 'these booleans are strictly equal'); + * + * @name strictEqual + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.strictEqual = function (act, exp, msg) { + new Assertion(act, msg).to.equal(exp); + }; + + /** + * ### .notStrictEqual(actual, expected, [message]) + * + * Asserts strict inequality (`!==`) of `actual` and `expected`. + * + * assert.notStrictEqual(3, '3', 'no coercion for strict equality'); + * + * @name notStrictEqual + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.notStrictEqual = function (act, exp, msg) { + new Assertion(act, msg).to.not.equal(exp); + }; + + /** + * ### .deepEqual(actual, expected, [message]) + * + * Asserts that `actual` is deeply equal to `expected`. + * + * assert.deepEqual({ tea: 'green' }, { tea: 'green' }); + * + * @name deepEqual + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.deepEqual = function (act, exp, msg) { + new Assertion(act, msg).to.eql(exp); + }; + + /** + * ### .notDeepEqual(actual, expected, [message]) + * + * Assert that `actual` is not deeply equal to `expected`. + * + * assert.notDeepEqual({ tea: 'green' }, { tea: 'jasmine' }); + * + * @name notDeepEqual + * @param {Mixed} actual + * @param {Mixed} expected + * @param {String} message + * @api public + */ + + assert.notDeepEqual = function (act, exp, msg) { + new Assertion(act, msg).to.not.eql(exp); + }; + + /** + * ### .isTrue(value, [message]) + * + * Asserts that `value` is true. + * + * var teaServed = true; + * assert.isTrue(teaServed, 'the tea has been served'); + * + * @name isTrue + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isTrue = function (val, msg) { + new Assertion(val, msg).is['true']; + }; + + /** + * ### .isFalse(value, [message]) + * + * Asserts that `value` is false. + * + * var teaServed = false; + * assert.isFalse(teaServed, 'no tea yet? hmm...'); + * + * @name isFalse + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isFalse = function (val, msg) { + new Assertion(val, msg).is['false']; + }; + + /** + * ### .isNull(value, [message]) + * + * Asserts that `value` is null. + * + * assert.isNull(err, 'there was no error'); + * + * @name isNull + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNull = function (val, msg) { + new Assertion(val, msg).to.equal(null); + }; + + /** + * ### .isNotNull(value, [message]) + * + * Asserts that `value` is not null. + * + * var tea = 'tasty chai'; + * assert.isNotNull(tea, 'great, time for tea!'); + * + * @name isNotNull + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotNull = function (val, msg) { + new Assertion(val, msg).to.not.equal(null); + }; + + /** + * ### .isUndefined(value, [message]) + * + * Asserts that `value` is `undefined`. + * + * var tea; + * assert.isUndefined(tea, 'no tea defined'); + * + * @name isUndefined + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isUndefined = function (val, msg) { + new Assertion(val, msg).to.equal(undefined); + }; + + /** + * ### .isDefined(value, [message]) + * + * Asserts that `value` is not `undefined`. + * + * var tea = 'cup of chai'; + * assert.isDefined(tea, 'tea has been defined'); + * + * @name isUndefined + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isDefined = function (val, msg) { + new Assertion(val, msg).to.not.equal(undefined); + }; + + /** + * ### .isFunction(value, [message]) + * + * Asserts that `value` is a function. + * + * function serveTea() { return 'cup of tea'; }; + * assert.isFunction(serveTea, 'great, we can have tea now'); + * + * @name isFunction + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isFunction = function (val, msg) { + new Assertion(val, msg).to.be.a('function'); + }; + + /** + * ### .isNotFunction(value, [message]) + * + * Asserts that `value` is _not_ a function. + * + * var serveTea = [ 'heat', 'pour', 'sip' ]; + * assert.isNotFunction(serveTea, 'great, we have listed the steps'); + * + * @name isNotFunction + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotFunction = function (val, msg) { + new Assertion(val, msg).to.not.be.a('function'); + }; + + /** + * ### .isObject(value, [message]) + * + * Asserts that `value` is an object (as revealed by + * `Object.prototype.toString`). + * + * var selection = { name: 'Chai', serve: 'with spices' }; + * assert.isObject(selection, 'tea selection is an object'); + * + * @name isObject + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isObject = function (val, msg) { + new Assertion(val, msg).to.be.a('object'); + }; + + /** + * ### .isNotObject(value, [message]) + * + * Asserts that `value` is _not_ an object. + * + * var selection = 'chai' + * assert.isObject(selection, 'tea selection is not an object'); + * assert.isObject(null, 'null is not an object'); + * + * @name isNotObject + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotObject = function (val, msg) { + new Assertion(val, msg).to.not.be.a('object'); + }; + + /** + * ### .isArray(value, [message]) + * + * Asserts that `value` is an array. + * + * var menu = [ 'green', 'chai', 'oolong' ]; + * assert.isArray(menu, 'what kind of tea do we want?'); + * + * @name isArray + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isArray = function (val, msg) { + new Assertion(val, msg).to.be.an('array'); + }; + + /** + * ### .isNotArray(value, [message]) + * + * Asserts that `value` is _not_ an array. + * + * var menu = 'green|chai|oolong'; + * assert.isNotArray(menu, 'what kind of tea do we want?'); + * + * @name isNotArray + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotArray = function (val, msg) { + new Assertion(val, msg).to.not.be.an('array'); + }; + + /** + * ### .isString(value, [message]) + * + * Asserts that `value` is a string. + * + * var teaOrder = 'chai'; + * assert.isString(teaOrder, 'order placed'); + * + * @name isString + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isString = function (val, msg) { + new Assertion(val, msg).to.be.a('string'); + }; + + /** + * ### .isNotString(value, [message]) + * + * Asserts that `value` is _not_ a string. + * + * var teaOrder = 4; + * assert.isNotString(teaOrder, 'order placed'); + * + * @name isNotString + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotString = function (val, msg) { + new Assertion(val, msg).to.not.be.a('string'); + }; + + /** + * ### .isNumber(value, [message]) + * + * Asserts that `value` is a number. + * + * var cups = 2; + * assert.isNumber(cups, 'how many cups'); + * + * @name isNumber + * @param {Number} value + * @param {String} message + * @api public + */ + + assert.isNumber = function (val, msg) { + new Assertion(val, msg).to.be.a('number'); + }; + + /** + * ### .isNotNumber(value, [message]) + * + * Asserts that `value` is _not_ a number. + * + * var cups = '2 cups please'; + * assert.isNotNumber(cups, 'how many cups'); + * + * @name isNotNumber + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotNumber = function (val, msg) { + new Assertion(val, msg).to.not.be.a('number'); + }; + + /** + * ### .isBoolean(value, [message]) + * + * Asserts that `value` is a boolean. + * + * var teaReady = true + * , teaServed = false; + * + * assert.isBoolean(teaReady, 'is the tea ready'); + * assert.isBoolean(teaServed, 'has tea been served'); + * + * @name isBoolean + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isBoolean = function (val, msg) { + new Assertion(val, msg).to.be.a('boolean'); + }; + + /** + * ### .isNotBoolean(value, [message]) + * + * Asserts that `value` is _not_ a boolean. + * + * var teaReady = 'yep' + * , teaServed = 'nope'; + * + * assert.isNotBoolean(teaReady, 'is the tea ready'); + * assert.isNotBoolean(teaServed, 'has tea been served'); + * + * @name isNotBoolean + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.isNotBoolean = function (val, msg) { + new Assertion(val, msg).to.not.be.a('boolean'); + }; + + /** + * ### .typeOf(value, name, [message]) + * + * Asserts that `value`'s type is `name`, as determined by + * `Object.prototype.toString`. + * + * assert.typeOf({ tea: 'chai' }, 'object', 'we have an object'); + * assert.typeOf(['chai', 'jasmine'], 'array', 'we have an array'); + * assert.typeOf('tea', 'string', 'we have a string'); + * assert.typeOf(/tea/, 'regexp', 'we have a regular expression'); + * assert.typeOf(null, 'null', 'we have a null'); + * assert.typeOf(undefined, 'undefined', 'we have an undefined'); + * + * @name typeOf + * @param {Mixed} value + * @param {String} name + * @param {String} message + * @api public + */ + + assert.typeOf = function (val, type, msg) { + new Assertion(val, msg).to.be.a(type); + }; + + /** + * ### .notTypeOf(value, name, [message]) + * + * Asserts that `value`'s type is _not_ `name`, as determined by + * `Object.prototype.toString`. + * + * assert.notTypeOf('tea', 'number', 'strings are not numbers'); + * + * @name notTypeOf + * @param {Mixed} value + * @param {String} typeof name + * @param {String} message + * @api public + */ + + assert.notTypeOf = function (val, type, msg) { + new Assertion(val, msg).to.not.be.a(type); + }; + + /** + * ### .instanceOf(object, constructor, [message]) + * + * Asserts that `value` is an instance of `constructor`. + * + * var Tea = function (name) { this.name = name; } + * , chai = new Tea('chai'); + * + * assert.instanceOf(chai, Tea, 'chai is an instance of tea'); + * + * @name instanceOf + * @param {Object} object + * @param {Constructor} constructor + * @param {String} message + * @api public + */ + + assert.instanceOf = function (val, type, msg) { + new Assertion(val, msg).to.be.instanceOf(type); + }; + + /** + * ### .notInstanceOf(object, constructor, [message]) + * + * Asserts `value` is not an instance of `constructor`. + * + * var Tea = function (name) { this.name = name; } + * , chai = new String('chai'); + * + * assert.notInstanceOf(chai, Tea, 'chai is not an instance of tea'); + * + * @name notInstanceOf + * @param {Object} object + * @param {Constructor} constructor + * @param {String} message + * @api public + */ + + assert.notInstanceOf = function (val, type, msg) { + new Assertion(val, msg).to.not.be.instanceOf(type); + }; + + /** + * ### .include(haystack, needle, [message]) + * + * Asserts that `haystack` includes `needle`. Works + * for strings and arrays. + * + * assert.include('foobar', 'bar', 'foobar contains string "bar"'); + * assert.include([ 1, 2, 3 ], 3, 'array contains value'); + * + * @name include + * @param {Array|String} haystack + * @param {Mixed} needle + * @param {String} message + * @api public + */ + + assert.include = function (exp, inc, msg) { + var obj = new Assertion(exp, msg); + + if (Array.isArray(exp)) { + obj.to.include(inc); + } else if ('string' === typeof exp) { + obj.to.contain.string(inc); + } + }; + + /** + * ### .match(value, regexp, [message]) + * + * Asserts that `value` matches the regular expression `regexp`. + * + * assert.match('foobar', /^foo/, 'regexp matches'); + * + * @name match + * @param {Mixed} value + * @param {RegExp} regexp + * @param {String} message + * @api public + */ + + assert.match = function (exp, re, msg) { + new Assertion(exp, msg).to.match(re); + }; + + /** + * ### .notMatch(value, regexp, [message]) + * + * Asserts that `value` does not match the regular expression `regexp`. + * + * assert.notMatch('foobar', /^foo/, 'regexp does not match'); + * + * @name notMatch + * @param {Mixed} value + * @param {RegExp} regexp + * @param {String} message + * @api public + */ + + assert.notMatch = function (exp, re, msg) { + new Assertion(exp, msg).to.not.match(re); + }; + + /** + * ### .property(object, property, [message]) + * + * Asserts that `object` has a property named by `property`. + * + * assert.property({ tea: { green: 'matcha' }}, 'tea'); + * + * @name property + * @param {Object} object + * @param {String} property + * @param {String} message + * @api public + */ + + assert.property = function (obj, prop, msg) { + new Assertion(obj, msg).to.have.property(prop); + }; + + /** + * ### .notProperty(object, property, [message]) + * + * Asserts that `object` does _not_ have a property named by `property`. + * + * assert.notProperty({ tea: { green: 'matcha' }}, 'coffee'); + * + * @name notProperty + * @param {Object} object + * @param {String} property + * @param {String} message + * @api public + */ + + assert.notProperty = function (obj, prop, msg) { + new Assertion(obj, msg).to.not.have.property(prop); + }; + + /** + * ### .deepProperty(object, property, [message]) + * + * Asserts that `object` has a property named by `property`, which can be a + * string using dot- and bracket-notation for deep reference. + * + * assert.deepProperty({ tea: { green: 'matcha' }}, 'tea.green'); + * + * @name deepProperty + * @param {Object} object + * @param {String} property + * @param {String} message + * @api public + */ + + assert.deepProperty = function (obj, prop, msg) { + new Assertion(obj, msg).to.have.deep.property(prop); + }; + + /** + * ### .notDeepProperty(object, property, [message]) + * + * Asserts that `object` does _not_ have a property named by `property`, which + * can be a string using dot- and bracket-notation for deep reference. + * + * assert.notDeepProperty({ tea: { green: 'matcha' }}, 'tea.oolong'); + * + * @name notDeepProperty + * @param {Object} object + * @param {String} property + * @param {String} message + * @api public + */ + + assert.notDeepProperty = function (obj, prop, msg) { + new Assertion(obj, msg).to.not.have.deep.property(prop); + }; + + /** + * ### .propertyVal(object, property, value, [message]) + * + * Asserts that `object` has a property named by `property` with value given + * by `value`. + * + * assert.propertyVal({ tea: 'is good' }, 'tea', 'is good'); + * + * @name propertyVal + * @param {Object} object + * @param {String} property + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.propertyVal = function (obj, prop, val, msg) { + new Assertion(obj, msg).to.have.property(prop, val); + }; + + /** + * ### .propertyNotVal(object, property, value, [message]) + * + * Asserts that `object` has a property named by `property`, but with a value + * different from that given by `value`. + * + * assert.propertyNotVal({ tea: 'is good' }, 'tea', 'is bad'); + * + * @name propertyNotVal + * @param {Object} object + * @param {String} property + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.propertyNotVal = function (obj, prop, val, msg) { + new Assertion(obj, msg).to.not.have.property(prop, val); + }; + + /** + * ### .deepPropertyVal(object, property, value, [message]) + * + * Asserts that `object` has a property named by `property` with value given + * by `value`. `property` can use dot- and bracket-notation for deep + * reference. + * + * assert.deepPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha'); + * + * @name deepPropertyVal + * @param {Object} object + * @param {String} property + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.deepPropertyVal = function (obj, prop, val, msg) { + new Assertion(obj, msg).to.have.deep.property(prop, val); + }; + + /** + * ### .deepPropertyNotVal(object, property, value, [message]) + * + * Asserts that `object` has a property named by `property`, but with a value + * different from that given by `value`. `property` can use dot- and + * bracket-notation for deep reference. + * + * assert.deepPropertyNotVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha'); + * + * @name deepPropertyNotVal + * @param {Object} object + * @param {String} property + * @param {Mixed} value + * @param {String} message + * @api public + */ + + assert.deepPropertyNotVal = function (obj, prop, val, msg) { + new Assertion(obj, msg).to.not.have.deep.property(prop, val); + }; + + /** + * ### .lengthOf(object, length, [message]) + * + * Asserts that `object` has a `length` property with the expected value. + * + * assert.lengthOf([1,2,3], 3, 'array has length of 3'); + * assert.lengthOf('foobar', 5, 'string has length of 6'); + * + * @name lengthOf + * @param {Mixed} object + * @param {Number} length + * @param {String} message + * @api public + */ + + assert.lengthOf = function (exp, len, msg) { + new Assertion(exp, msg).to.have.length(len); + }; + + /** + * ### .throws(function, [constructor/string/regexp], [string/regexp], [message]) + * + * Asserts that `function` will throw an error that is an instance of + * `constructor`, or alternately that it will throw an error with message + * matching `regexp`. + * + * assert.throw(fn, 'function throws a reference error'); + * assert.throw(fn, /function throws a reference error/); + * assert.throw(fn, ReferenceError); + * assert.throw(fn, ReferenceError, 'function throws a reference error'); + * assert.throw(fn, ReferenceError, /function throws a reference error/); + * + * @name throws + * @alias throw + * @alias Throw + * @param {Function} function + * @param {ErrorConstructor} constructor + * @param {RegExp} regexp + * @param {String} message + * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types + * @api public + */ + + assert.Throw = function (fn, errt, errs, msg) { + if ('string' === typeof errt || errt instanceof RegExp) { + errs = errt; + errt = null; + } + + new Assertion(fn, msg).to.Throw(errt, errs); + }; + + /** + * ### .doesNotThrow(function, [constructor/regexp], [message]) + * + * Asserts that `function` will _not_ throw an error that is an instance of + * `constructor`, or alternately that it will not throw an error with message + * matching `regexp`. + * + * assert.doesNotThrow(fn, Error, 'function does not throw'); + * + * @name doesNotThrow + * @param {Function} function + * @param {ErrorConstructor} constructor + * @param {RegExp} regexp + * @param {String} message + * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types + * @api public + */ + + assert.doesNotThrow = function (fn, type, msg) { + if ('string' === typeof type) { + msg = type; + type = null; + } + + new Assertion(fn, msg).to.not.Throw(type); + }; + + /** + * ### .operator(val1, operator, val2, [message]) + * + * Compares two values using `operator`. + * + * assert.operator(1, '<', 2, 'everything is ok'); + * assert.operator(1, '>', 2, 'this will fail'); + * + * @name operator + * @param {Mixed} val1 + * @param {String} operator + * @param {Mixed} val2 + * @param {String} message + * @api public + */ + + assert.operator = function (val, operator, val2, msg) { + if (!~['==', '===', '>', '>=', '<', '<=', '!=', '!=='].indexOf(operator)) { + throw new Error('Invalid operator "' + operator + '"'); + } + var test = new Assertion(eval(val + operator + val2), msg); + test.assert( + true === flag(test, 'object') + , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2) + , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2)); + }; + + /** + * ### .closeTo(actual, expected, delta, [message]) + * + * Asserts that the target is equal `expected`, to within a +/- `delta` range. + * + * assert.closeTo(1.5, 1, 0.5, 'numbers are close'); + * + * @name closeTo + * @param {Number} actual + * @param {Number} expected + * @param {Number} delta + * @param {String} message + * @api public + */ + + assert.closeTo = function (act, exp, delta, msg) { + new Assertion(act, msg).to.be.closeTo(exp, delta); + }; + + /*! + * Undocumented / untested + */ + + assert.ifError = function (val, msg) { + new Assertion(val, msg).to.not.be.ok; + }; + + /*! + * Aliases. + */ + + (function alias(name, as) { + assert[as] = assert[name]; + return alias; + }) + ('Throw', 'throw') + ('Throw', 'throws'); + }; + + }); // module: chai/interface/assert.js + + require.register("chai/interface/expect.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + module.exports = function (chai, util) { + chai.expect = function (val, message) { + return new chai.Assertion(val, message); + }; + }; + + + }); // module: chai/interface/expect.js + + require.register("chai/interface/should.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011-2013 Jake Luer + * MIT Licensed + */ + + module.exports = function (chai, util) { + var Assertion = chai.Assertion; + + function loadShould() { + // modify Object.prototype to have `should` + Object.defineProperty(Object.prototype, 'should', + { + set: function (value) { + // See https://github.com/chaijs/chai/issues/86: this makes + // `whatever.should = someValue` actually set `someValue`, which is + // especially useful for `global.should = require('chai').should()`. + // + // Note that we have to use [[DefineProperty]] instead of [[Put]] + // since otherwise we would trigger this very setter! + Object.defineProperty(this, 'should', { + value: value, + enumerable: true, + configurable: true, + writable: true + }); + } + , get: function () { + if (this instanceof String || this instanceof Number) { + return new Assertion(this.constructor(this)); + } else if (this instanceof Boolean) { + return new Assertion(this == true); + } + return new Assertion(this); + } + , configurable: true + }); + + var should = {}; + + should.equal = function (val1, val2, msg) { + new Assertion(val1, msg).to.equal(val2); + }; + + should.Throw = function (fn, errt, errs, msg) { + new Assertion(fn, msg).to.Throw(errt, errs); + }; + + should.exist = function (val, msg) { + new Assertion(val, msg).to.exist; + } + + // negation + should.not = {} + + should.not.equal = function (val1, val2, msg) { + new Assertion(val1, msg).to.not.equal(val2); + }; + + should.not.Throw = function (fn, errt, errs, msg) { + new Assertion(fn, msg).to.not.Throw(errt, errs); + }; + + should.not.exist = function (val, msg) { + new Assertion(val, msg).to.not.exist; + } + + should['throw'] = should['Throw']; + should.not['throw'] = should.not['Throw']; + + return should; + }; + + chai.should = loadShould; + chai.Should = loadShould; + }; + + }); // module: chai/interface/should.js + + require.register("chai/utils/addChainableMethod.js", function (module, exports, require) { + /*! + * Chai - addChainingMethod utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Module dependencies + */ + + var transferFlags = require('./transferFlags'); + + /*! + * Module variables + */ + + // Check whether `__proto__` is supported + var hasProtoSupport = '__proto__' in Object; + + // Without `__proto__` support, this module will need to add properties to a function. + // However, some Function.prototype methods cannot be overwritten, + // and there seems no easy cross-platform way to detect them (@see chaijs/chai/issues/69). + var excludeNames = /^(?:length|name|arguments|caller)$/; + + /** + * ### addChainableMethod (ctx, name, method, chainingBehavior) + * + * Adds a method to an object, such that the method can also be chained. + * + * utils.addChainableMethod(chai.Assertion.prototype, 'foo', function (str) { + * var obj = utils.flag(this, 'object'); + * new chai.Assertion(obj).to.be.equal(str); + * }); + * + * Can also be accessed directly from `chai.Assertion`. + * + * chai.Assertion.addChainableMethod('foo', fn, chainingBehavior); + * + * The result can then be used as both a method assertion, executing both `method` and + * `chainingBehavior`, or as a language chain, which only executes `chainingBehavior`. + * + * expect(fooStr).to.be.foo('bar'); + * expect(fooStr).to.be.foo.equal('foo'); + * + * @param {Object} ctx object to which the method is added + * @param {String} name of method to add + * @param {Function} method function to be used for `name`, when called + * @param {Function} chainingBehavior function to be called every time the property is accessed + * @name addChainableMethod + * @api public + */ + + module.exports = function (ctx, name, method, chainingBehavior) { + if (typeof chainingBehavior !== 'function') + chainingBehavior = function () { }; + + Object.defineProperty(ctx, name, + { + get: function () { + chainingBehavior.call(this); + + var assert = function () { + var result = method.apply(this, arguments); + return result === undefined ? this : result; + }; + + // Use `__proto__` if available + if (hasProtoSupport) { + assert.__proto__ = this; + } + // Otherwise, redefine all properties (slow!) + else { + var asserterNames = Object.getOwnPropertyNames(ctx); + asserterNames.forEach(function (asserterName) { + if (!excludeNames.test(asserterName)) { + var pd = Object.getOwnPropertyDescriptor(ctx, asserterName); + Object.defineProperty(assert, asserterName, pd); + } + }); + } + + transferFlags(this, assert); + return assert; + } + , configurable: true + }); + }; + + }); // module: chai/utils/addChainableMethod.js + + require.register("chai/utils/addMethod.js", function (module, exports, require) { + /*! + * Chai - addMethod utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### .addMethod (ctx, name, method) + * + * Adds a method to the prototype of an object. + * + * utils.addMethod(chai.Assertion.prototype, 'foo', function (str) { + * var obj = utils.flag(this, 'object'); + * new chai.Assertion(obj).to.be.equal(str); + * }); + * + * Can also be accessed directly from `chai.Assertion`. + * + * chai.Assertion.addMethod('foo', fn); + * + * Then can be used as any other assertion. + * + * expect(fooStr).to.be.foo('bar'); + * + * @param {Object} ctx object to which the method is added + * @param {String} name of method to add + * @param {Function} method function to be used for name + * @name addMethod + * @api public + */ + + module.exports = function (ctx, name, method) { + ctx[name] = function () { + var result = method.apply(this, arguments); + return result === undefined ? this : result; + }; + }; + + }); // module: chai/utils/addMethod.js + + require.register("chai/utils/addProperty.js", function (module, exports, require) { + /*! + * Chai - addProperty utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### addProperty (ctx, name, getter) + * + * Adds a property to the prototype of an object. + * + * utils.addProperty(chai.Assertion.prototype, 'foo', function () { + * var obj = utils.flag(this, 'object'); + * new chai.Assertion(obj).to.be.instanceof(Foo); + * }); + * + * Can also be accessed directly from `chai.Assertion`. + * + * chai.Assertion.addProperty('foo', fn); + * + * Then can be used as any other assertion. + * + * expect(myFoo).to.be.foo; + * + * @param {Object} ctx object to which the property is added + * @param {String} name of property to add + * @param {Function} getter function to be used for name + * @name addProperty + * @api public + */ + + module.exports = function (ctx, name, getter) { + Object.defineProperty(ctx, name, + { + get: function () { + var result = getter.call(this); + return result === undefined ? this : result; + } + , configurable: true + }); + }; + + }); // module: chai/utils/addProperty.js + + require.register("chai/utils/eql.js", function (module, exports, require) { + // This is (almost) directly from Node.js assert + // https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/assert.js + + module.exports = _deepEqual; + + var getEnumerableProperties = require('./getEnumerableProperties'); + + // for the browser + var Buffer; + try { + Buffer = require('buffer').Buffer; + } catch (ex) { + Buffer = { + isBuffer: function () { return false; } + }; + } + + function _deepEqual(actual, expected, memos) { + + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + + } else if (Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) { + if (actual.length != expected.length) return false; + + for (var i = 0; i < actual.length; i++) { + if (actual[i] !== expected[i]) return false; + } + + return true; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (actual instanceof Date && expected instanceof Date) { + return actual.getTime() === expected.getTime(); + + // 7.3. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if (typeof actual != 'object' && typeof expected != 'object') { + return actual === expected; + + // 7.4. For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else { + return objEquiv(actual, expected, memos); + } + } + + function isUndefinedOrNull(value) { + return value === null || value === undefined; + } + + function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; + } + + function objEquiv(a, b, memos) { + if (isUndefinedOrNull(a) || isUndefinedOrNull(b)) + return false; + + // an identical 'prototype' property. + if (a.prototype !== b.prototype) return false; + + // check if we have already compared a and b + var i; + if (memos) { + for (i = 0; i < memos.length; i++) { + if ((memos[i][0] === a && memos[i][1] === b) || + (memos[i][0] === b && memos[i][1] === a)) + return true; + } + } else { + memos = []; + } + + //~~~I've managed to break Object.keys through screwy arguments passing. + // Converting to array solves the problem. + if (isArguments(a)) { + if (!isArguments(b)) { + return false; + } + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b, memos); + } + try { + var ka = getEnumerableProperties(a), + kb = getEnumerableProperties(b), + key; + } catch (e) {//happens when one is a string literal and the other isn't + return false; + } + + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length != kb.length) + return false; + + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] != kb[i]) + return false; + } + + // remember objects we have compared to guard against circular references + memos.push([a, b]); + + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key], memos)) return false; + } + + return true; + } + + }); // module: chai/utils/eql.js + + require.register("chai/utils/flag.js", function (module, exports, require) { + /*! + * Chai - flag utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### flag(object ,key, [value]) + * + * Get or set a flag value on an object. If a + * value is provided it will be set, else it will + * return the currently set value or `undefined` if + * the value is not set. + * + * utils.flag(this, 'foo', 'bar'); // setter + * utils.flag(this, 'foo'); // getter, returns `bar` + * + * @param {Object} object (constructed Assertion + * @param {String} key + * @param {Mixed} value (optional) + * @name flag + * @api private + */ + + module.exports = function (obj, key, value) { + var flags = obj.__flags || (obj.__flags = Object.create(null)); + if (arguments.length === 3) { + flags[key] = value; + } else { + return flags[key]; + } + }; + + }); // module: chai/utils/flag.js + + require.register("chai/utils/getActual.js", function (module, exports, require) { + /*! + * Chai - getActual utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * # getActual(object, [actual]) + * + * Returns the `actual` value for an Assertion + * + * @param {Object} object (constructed Assertion) + * @param {Arguments} chai.Assertion.prototype.assert arguments + */ + + module.exports = function (obj, args) { + var actual = args[4]; + return 'undefined' !== typeof actual ? actual : obj._obj; + }; + + }); // module: chai/utils/getActual.js + + require.register("chai/utils/getEnumerableProperties.js", function (module, exports, require) { + /*! + * Chai - getEnumerableProperties utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### .getEnumerableProperties(object) + * + * This allows the retrieval of enumerable property names of an object, + * inherited or not. + * + * @param {Object} object + * @returns {Array} + * @name getEnumerableProperties + * @api public + */ + + module.exports = function getEnumerableProperties(object) { + var result = []; + for (var name in object) { + result.push(name); + } + return result; + }; + + }); // module: chai/utils/getEnumerableProperties.js + + require.register("chai/utils/getMessage.js", function (module, exports, require) { + /*! + * Chai - message composition utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Module dependancies + */ + + var flag = require('./flag') + , getActual = require('./getActual') + , inspect = require('./inspect') + , objDisplay = require('./objDisplay'); + + /** + * ### .getMessage(object, message, negateMessage) + * + * Construct the error message based on flags + * and template tags. Template tags will return + * a stringified inspection of the object referenced. + * + * Messsage template tags: + * - `#{this}` current asserted object + * - `#{act}` actual value + * - `#{exp}` expected value + * + * @param {Object} object (constructed Assertion) + * @param {Arguments} chai.Assertion.prototype.assert arguments + * @name getMessage + * @api public + */ + + module.exports = function (obj, args) { + var negate = flag(obj, 'negate') + , val = flag(obj, 'object') + , expected = args[3] + , actual = getActual(obj, args) + , msg = negate ? args[2] : args[1] + , flagMsg = flag(obj, 'message'); + + msg = msg || ''; + msg = msg + .replace(/#{this}/g, objDisplay(val)) + .replace(/#{act}/g, objDisplay(actual)) + .replace(/#{exp}/g, objDisplay(expected)); + + return flagMsg ? flagMsg + ': ' + msg : msg; + }; + + }); // module: chai/utils/getMessage.js + + require.register("chai/utils/getName.js", function (module, exports, require) { + /*! + * Chai - getName utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * # getName(func) + * + * Gets the name of a function, in a cross-browser way. + * + * @param {Function} a function (usually a constructor) + */ + + module.exports = function (func) { + if (func.name) return func.name; + + var match = /^\s?function ([^(]*)\(/.exec(func); + return match && match[1] ? match[1] : ""; + }; + + }); // module: chai/utils/getName.js + + require.register("chai/utils/getPathValue.js", function (module, exports, require) { + /*! + * Chai - getPathValue utility + * Copyright(c) 2012-2013 Jake Luer + * @see https://github.com/logicalparadox/filtr + * MIT Licensed + */ + + /** + * ### .getPathValue(path, object) + * + * This allows the retrieval of values in an + * object given a string path. + * + * var obj = { + * prop1: { + * arr: ['a', 'b', 'c'] + * , str: 'Hello' + * } + * , prop2: { + * arr: [ { nested: 'Universe' } ] + * , str: 'Hello again!' + * } + * } + * + * The following would be the results. + * + * getPathValue('prop1.str', obj); // Hello + * getPathValue('prop1.att[2]', obj); // b + * getPathValue('prop2.arr[0].nested', obj); // Universe + * + * @param {String} path + * @param {Object} object + * @returns {Object} value or `undefined` + * @name getPathValue + * @api public + */ + + var getPathValue = module.exports = function (path, obj) { + var parsed = parsePath(path); + return _getPathValue(parsed, obj); + }; + + /*! + * ## parsePath(path) + * + * Helper function used to parse string object + * paths. Use in conjunction with `_getPathValue`. + * + * var parsed = parsePath('myobject.property.subprop'); + * + * ### Paths: + * + * * Can be as near infinitely deep and nested + * * Arrays are also valid using the formal `myobject.document[3].property`. + * + * @param {String} path + * @returns {Object} parsed + * @api private + */ + + function parsePath(path) { + var str = path.replace(/\[/g, '.[') + , parts = str.match(/(\\\.|[^.]+?)+/g); + return parts.map(function (value) { + var re = /\[(\d+)\]$/ + , mArr = re.exec(value) + if (mArr) return { i: parseFloat(mArr[1]) }; + else return { p: value }; + }); + }; + + /*! + * ## _getPathValue(parsed, obj) + * + * Helper companion function for `.parsePath` that returns + * the value located at the parsed address. + * + * var value = getPathValue(parsed, obj); + * + * @param {Object} parsed definition from `parsePath`. + * @param {Object} object to search against + * @returns {Object|Undefined} value + * @api private + */ + + function _getPathValue(parsed, obj) { + var tmp = obj + , res; + for (var i = 0, l = parsed.length; i < l; i++) { + var part = parsed[i]; + if (tmp) { + if ('undefined' !== typeof part.p) + tmp = tmp[part.p]; + else if ('undefined' !== typeof part.i) + tmp = tmp[part.i]; + if (i == (l - 1)) res = tmp; + } else { + res = undefined; + } + } + return res; + }; + + }); // module: chai/utils/getPathValue.js + + require.register("chai/utils/getProperties.js", function (module, exports, require) { + /*! + * Chai - getProperties utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### .getProperties(object) + * + * This allows the retrieval of property names of an object, enumerable or not, + * inherited or not. + * + * @param {Object} object + * @returns {Array} + * @name getProperties + * @api public + */ + + module.exports = function getProperties(object) { + var result = Object.getOwnPropertyNames(subject); + + function addProperty(property) { + if (result.indexOf(property) === -1) { + result.push(property); + } + } + + var proto = Object.getPrototypeOf(subject); + while (proto !== null) { + Object.getOwnPropertyNames(proto).forEach(addProperty); + proto = Object.getPrototypeOf(proto); + } + + return result; + }; + + }); // module: chai/utils/getProperties.js + + require.register("chai/utils/index.js", function (module, exports, require) { + /*! + * chai + * Copyright(c) 2011 Jake Luer + * MIT Licensed + */ + + /*! + * Main exports + */ + + var exports = module.exports = {}; + + /*! + * test utility + */ + + exports.test = require('./test'); + + /*! + * type utility + */ + + exports.type = require('./type'); + + /*! + * message utility + */ + + exports.getMessage = require('./getMessage'); + + /*! + * actual utility + */ + + exports.getActual = require('./getActual'); + + /*! + * Inspect util + */ + + exports.inspect = require('./inspect'); + + /*! + * Object Display util + */ + + exports.objDisplay = require('./objDisplay'); + + /*! + * Flag utility + */ + + exports.flag = require('./flag'); + + /*! + * Flag transferring utility + */ + + exports.transferFlags = require('./transferFlags'); + + /*! + * Deep equal utility + */ + + exports.eql = require('./eql'); + + /*! + * Deep path value + */ + + exports.getPathValue = require('./getPathValue'); + + /*! + * Function name + */ + + exports.getName = require('./getName'); + + /*! + * add Property + */ + + exports.addProperty = require('./addProperty'); + + /*! + * add Method + */ + + exports.addMethod = require('./addMethod'); + + /*! + * overwrite Property + */ + + exports.overwriteProperty = require('./overwriteProperty'); + + /*! + * overwrite Method + */ + + exports.overwriteMethod = require('./overwriteMethod'); + + /*! + * Add a chainable method + */ + + exports.addChainableMethod = require('./addChainableMethod'); + + + }); // module: chai/utils/index.js + + require.register("chai/utils/inspect.js", function (module, exports, require) { + // This is (almost) directly from Node.js utils + // https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js + + var getName = require('./getName'); + var getProperties = require('./getProperties'); + var getEnumerableProperties = require('./getEnumerableProperties'); + + module.exports = inspect; + + /** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Boolean} showHidden Flag that shows hidden (not enumerable) + * properties of objects. + * @param {Number} depth Depth in which to descend in object. Default is 2. + * @param {Boolean} colors Flag to turn on ANSI escape codes to color the + * output. Default is false (no coloring). + */ + function inspect(obj, showHidden, depth, colors) { + var ctx = { + showHidden: showHidden, + seen: [], + stylize: function (str) { return str; } + }; + return formatValue(ctx, obj, (typeof depth === 'undefined' ? 2 : depth)); + } + + // https://gist.github.com/1044128/ + var getOuterHTML = function (element) { + if ('outerHTML' in element) return element.outerHTML; + var ns = "http://www.w3.org/1999/xhtml"; + var container = document.createElementNS(ns, '_'); + var elemProto = (window.HTMLElement || window.Element).prototype; + var xmlSerializer = new XMLSerializer(); + var html; + if (document.xmlVersion) { + return xmlSerializer.serializeToString(element); + } else { + container.appendChild(element.cloneNode(false)); + html = container.innerHTML.replace('><', '>' + element.innerHTML + '<'); + container.innerHTML = ''; + return html; + } + }; + + // Returns true if object is a DOM element. + var isDOMElement = function (object) { + if (typeof HTMLElement === 'object') { + return object instanceof HTMLElement; + } else { + return object && + typeof object === 'object' && + object.nodeType === 1 && + typeof object.nodeName === 'string'; + } + }; + + function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (value && typeof value.inspect === 'function' && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + return value.inspect(recurseTimes); + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // If it's DOM elem, get outer HTML. + if (isDOMElement(value)) { + return getOuterHTML(value); + } + + // Look up the keys of the object. + var visibleKeys = getEnumerableProperties(value); + var keys = ctx.showHidden ? getProperties(value) : visibleKeys; + + // Some type of object without properties can be shortcutted. + // In IE, errors have a single `stack` property, or if they are vanilla `Error`, + // a `stack` plus `description` property; ignore those for consistency. + if (keys.length === 0 || (isError(value) && ( + (keys.length === 1 && keys[0] === 'stack') || + (keys.length === 2 && keys[0] === 'description' && keys[1] === 'stack') + ))) { + if (typeof value === 'function') { + var name = getName(value); + var nameSuffix = name ? ': ' + name : ''; + return ctx.stylize('[Function' + nameSuffix + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toUTCString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (typeof value === 'function') { + var name = getName(value); + var nameSuffix = name ? ': ' + name : ''; + base = ' [Function' + nameSuffix + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + return formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function (key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); + } + + + function formatPrimitive(ctx, value) { + switch (typeof value) { + case 'undefined': + return ctx.stylize('undefined', 'undefined'); + + case 'string': + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + + case 'number': + return ctx.stylize('' + value, 'number'); + + case 'boolean': + return ctx.stylize('' + value, 'boolean'); + } + // For some reason typeof null is "object", so special case here. + if (value === null) { + return ctx.stylize('null', 'null'); + } + } + + + function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; + } + + + function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (Object.prototype.hasOwnProperty.call(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function (key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; + } + + + function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str; + if (value.__lookupGetter__) { + if (value.__lookupGetter__(key)) { + if (value.__lookupSetter__(key)) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (value.__lookupSetter__(key)) { + str = ctx.stylize('[Setter]', 'special'); + } + } + } + if (visibleKeys.indexOf(key) < 0) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(value[key]) < 0) { + if (recurseTimes === null) { + str = formatValue(ctx, value[key], null); + } else { + str = formatValue(ctx, value[key], recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function (line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function (line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (typeof name === 'undefined') { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; + } + + + function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function (prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; + } + + function isArray(ar) { + return Array.isArray(ar) || + (typeof ar === 'object' && objectToString(ar) === '[object Array]'); + } + + function isRegExp(re) { + return typeof re === 'object' && objectToString(re) === '[object RegExp]'; + } + + function isDate(d) { + return typeof d === 'object' && objectToString(d) === '[object Date]'; + } + + function isError(e) { + return typeof e === 'object' && objectToString(e) === '[object Error]'; + } + + function objectToString(o) { + return Object.prototype.toString.call(o); + } + + }); // module: chai/utils/inspect.js + + require.register("chai/utils/objDisplay.js", function (module, exports, require) { + /*! + * Chai - flag utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Module dependancies + */ + + var inspect = require('./inspect'); + + /** + * ### .objDisplay (object) + * + * Determines if an object or an array matches + * criteria to be inspected in-line for error + * messages or should be truncated. + * + * @param {Mixed} javascript object to inspect + * @name objDisplay + * @api public + */ + + module.exports = function (obj) { + var str = inspect(obj) + , type = Object.prototype.toString.call(obj); + + if (str.length >= 40) { + if (type === '[object Function]') { + return !obj.name || obj.name === '' + ? '[Function]' + : '[Function: ' + obj.name + ']'; + } else if (type === '[object Array]') { + return '[ Array(' + obj.length + ') ]'; + } else if (type === '[object Object]') { + var keys = Object.keys(obj) + , kstr = keys.length > 2 + ? keys.splice(0, 2).join(', ') + ', ...' + : keys.join(', '); + return '{ Object (' + kstr + ') }'; + } else { + return str; + } + } else { + return str; + } + }; + + }); // module: chai/utils/objDisplay.js + + require.register("chai/utils/overwriteMethod.js", function (module, exports, require) { + /*! + * Chai - overwriteMethod utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### overwriteMethod (ctx, name, fn) + * + * Overwites an already existing method and provides + * access to previous function. Must return function + * to be used for name. + * + * utils.overwriteMethod(chai.Assertion.prototype, 'equal', function (_super) { + * return function (str) { + * var obj = utils.flag(this, 'object'); + * if (obj instanceof Foo) { + * new chai.Assertion(obj.value).to.equal(str); + * } else { + * _super.apply(this, arguments); + * } + * } + * }); + * + * Can also be accessed directly from `chai.Assertion`. + * + * chai.Assertion.overwriteMethod('foo', fn); + * + * Then can be used as any other assertion. + * + * expect(myFoo).to.equal('bar'); + * + * @param {Object} ctx object whose method is to be overwritten + * @param {String} name of method to overwrite + * @param {Function} method function that returns a function to be used for name + * @name overwriteMethod + * @api public + */ + + module.exports = function (ctx, name, method) { + var _method = ctx[name] + , _super = function () { return this; }; + + if (_method && 'function' === typeof _method) + _super = _method; + + ctx[name] = function () { + var result = method(_super).apply(this, arguments); + return result === undefined ? this : result; + } + }; + + }); // module: chai/utils/overwriteMethod.js + + require.register("chai/utils/overwriteProperty.js", function (module, exports, require) { + /*! + * Chai - overwriteProperty utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### overwriteProperty (ctx, name, fn) + * + * Overwites an already existing property getter and provides + * access to previous value. Must return function to use as getter. + * + * utils.overwriteProperty(chai.Assertion.prototype, 'ok', function (_super) { + * return function () { + * var obj = utils.flag(this, 'object'); + * if (obj instanceof Foo) { + * new chai.Assertion(obj.name).to.equal('bar'); + * } else { + * _super.call(this); + * } + * } + * }); + * + * + * Can also be accessed directly from `chai.Assertion`. + * + * chai.Assertion.overwriteProperty('foo', fn); + * + * Then can be used as any other assertion. + * + * expect(myFoo).to.be.ok; + * + * @param {Object} ctx object whose property is to be overwritten + * @param {String} name of property to overwrite + * @param {Function} getter function that returns a getter function to be used for name + * @name overwriteProperty + * @api public + */ + + module.exports = function (ctx, name, getter) { + var _get = Object.getOwnPropertyDescriptor(ctx, name) + , _super = function () { }; + + if (_get && 'function' === typeof _get.get) + _super = _get.get + + Object.defineProperty(ctx, name, + { + get: function () { + var result = getter(_super).call(this); + return result === undefined ? this : result; + } + , configurable: true + }); + }; + + }); // module: chai/utils/overwriteProperty.js + + require.register("chai/utils/test.js", function (module, exports, require) { + /*! + * Chai - test utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Module dependancies + */ + + var flag = require('./flag'); + + /** + * # test(object, expression) + * + * Test and object for expression. + * + * @param {Object} object (constructed Assertion) + * @param {Arguments} chai.Assertion.prototype.assert arguments + */ + + module.exports = function (obj, args) { + var negate = flag(obj, 'negate') + , expr = args[0]; + return negate ? !expr : expr; + }; + + }); // module: chai/utils/test.js + + require.register("chai/utils/transferFlags.js", function (module, exports, require) { + /*! + * Chai - transferFlags utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /** + * ### transferFlags(assertion, object, includeAll = true) + * + * Transfer all the flags for `assertion` to `object`. If + * `includeAll` is set to `false`, then the base Chai + * assertion flags (namely `object`, `ssfi`, and `message`) + * will not be transferred. + * + * + * var newAssertion = new Assertion(); + * utils.transferFlags(assertion, newAssertion); + * + * var anotherAsseriton = new Assertion(myObj); + * utils.transferFlags(assertion, anotherAssertion, false); + * + * @param {Assertion} assertion the assertion to transfer the flags from + * @param {Object} object the object to transfer the flags too; usually a new assertion + * @param {Boolean} includeAll + * @name getAllFlags + * @api private + */ + + module.exports = function (assertion, object, includeAll) { + var flags = assertion.__flags || (assertion.__flags = Object.create(null)); + + if (!object.__flags) { + object.__flags = Object.create(null); + } + + includeAll = arguments.length === 3 ? includeAll : true; + + for (var flag in flags) { + if (includeAll || + (flag !== 'object' && flag !== 'ssfi' && flag != 'message')) { + object.__flags[flag] = flags[flag]; + } + } + }; + + }); // module: chai/utils/transferFlags.js + + require.register("chai/utils/type.js", function (module, exports, require) { + /*! + * Chai - type utility + * Copyright(c) 2012-2013 Jake Luer + * MIT Licensed + */ + + /*! + * Detectable javascript natives + */ + + var natives = { + '[object Arguments]': 'arguments' + , '[object Array]': 'array' + , '[object Date]': 'date' + , '[object Function]': 'function' + , '[object Number]': 'number' + , '[object RegExp]': 'regexp' + , '[object String]': 'string' + }; + + /** + * ### type(object) + * + * Better implementation of `typeof` detection that can + * be used cross-browser. Handles the inconsistencies of + * Array, `null`, and `undefined` detection. + * + * utils.type({}) // 'object' + * utils.type(null) // `null' + * utils.type(undefined) // `undefined` + * utils.type([]) // `array` + * + * @param {Mixed} object to detect type of + * @name type + * @api private + */ + + module.exports = function (obj) { + var str = Object.prototype.toString.call(obj); + if (natives[str]) return natives[str]; + if (obj === null) return 'null'; + if (obj === undefined) return 'undefined'; + if (obj === Object(obj)) return 'object'; + return typeof obj; + }; + + }); // module: chai/utils/type.js + + require.alias("./chai.js", "chai"); + + return require('chai'); +}); \ No newline at end of file diff --git a/2-scopes/lib/mocha/mocha.css b/2-scopes/lib/mocha/mocha.css new file mode 100755 index 0000000..03ac253 --- /dev/null +++ b/2-scopes/lib/mocha/mocha.css @@ -0,0 +1,246 @@ +@charset "utf-8"; + +body { + font: 20px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif; + padding: 60px 50px; +} + +#mocha ul, #mocha li { + margin: 0; + padding: 0; +} + +#mocha ul { + list-style: none; +} + +#mocha h1, #mocha h2 { + margin: 0; +} + +#mocha h1 { + margin-top: 15px; + font-size: 1em; + font-weight: 200; +} + +#mocha h1 a { + text-decoration: none; + color: inherit; +} + +#mocha h1 a:hover { + text-decoration: underline; +} + +#mocha .suite .suite h1 { + margin-top: 0; + font-size: .8em; +} + +.hidden { + display: none; +} + +#mocha h2 { + font-size: 12px; + font-weight: normal; + cursor: pointer; +} + +#mocha .suite { + margin-left: 15px; +} + +#mocha .test { + margin-left: 15px; + overflow: hidden; +} + +#mocha .test.pending:hover h2::after { + content: '(pending)'; + font-family: arial; +} + +#mocha .test.pass.medium .duration { + background: #C09853; +} + +#mocha .test.pass.slow .duration { + background: #B94A48; +} + +#mocha .test.pass::before { + content: '✓'; + font-size: 12px; + display: block; + float: left; + margin-right: 5px; + color: #00d6b2; +} + +#mocha .test.pass .duration { + font-size: 9px; + margin-left: 5px; + padding: 2px 5px; + color: white; + -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.2); + -moz-box-shadow: inset 0 1px 1px rgba(0,0,0,.2); + box-shadow: inset 0 1px 1px rgba(0,0,0,.2); + -webkit-border-radius: 5px; + -moz-border-radius: 5px; + -ms-border-radius: 5px; + -o-border-radius: 5px; + border-radius: 5px; +} + +#mocha .test.pass.fast .duration { + display: none; +} + +#mocha .test.pending { + color: #0b97c4; +} + +#mocha .test.pending::before { + content: '◦'; + color: #0b97c4; +} + +#mocha .test.fail { + color: #c00; +} + +#mocha .test.fail pre { + color: black; +} + +#mocha .test.fail::before { + content: '✖'; + font-size: 12px; + display: block; + float: left; + margin-right: 5px; + color: #c00; +} + +#mocha .test pre.error { + color: #c00; + max-height: 300px; + overflow: auto; +} + +#mocha .test pre { + display: block; + float: left; + clear: left; + font: 12px/1.5 monaco, monospace; + margin: 5px; + padding: 15px; + border: 1px solid #eee; + border-bottom-color: #ddd; + -webkit-border-radius: 3px; + -webkit-box-shadow: 0 1px 3px #eee; + -moz-border-radius: 3px; + -moz-box-shadow: 0 1px 3px #eee; +} + +#mocha .test h2 { + position: relative; +} + +#mocha .test a.replay { + position: absolute; + top: 3px; + right: 0; + text-decoration: none; + vertical-align: middle; + display: block; + width: 15px; + height: 15px; + line-height: 15px; + text-align: center; + background: #eee; + font-size: 15px; + -moz-border-radius: 15px; + border-radius: 15px; + -webkit-transition: opacity 200ms; + -moz-transition: opacity 200ms; + transition: opacity 200ms; + opacity: 0.3; + color: #888; +} + +#mocha .test:hover a.replay { + opacity: 1; +} + +#mocha-report.pass .test.fail { + display: none; +} + +#mocha-report.fail .test.pass { + display: none; +} + +#mocha-error { + color: #c00; + font-size: 1.5 em; + font-weight: 100; + letter-spacing: 1px; +} + +#mocha-stats { + position: fixed; + top: 15px; + right: 10px; + font-size: 12px; + margin: 0; + color: #888; +} + +#mocha-stats .progress { + float: right; + padding-top: 0; +} + +#mocha-stats em { + color: black; +} + +#mocha-stats a { + text-decoration: none; + color: inherit; +} + +#mocha-stats a:hover { + border-bottom: 1px solid #eee; +} + +#mocha-stats li { + display: inline-block; + margin: 0 5px; + list-style: none; + padding-top: 11px; +} + +#mocha-stats canvas { + width: 40px; + height: 40px; +} + +code .comment { color: #ddd } +code .init { color: #2F6FAD } +code .string { color: #5890AD } +code .keyword { color: #8A6343 } +code .number { color: #2F6FAD } + +@media screen and (max-device-width: 480px) { + body { + padding: 60px 0px; + } + + #stats { + position: absolute; + } +} \ No newline at end of file diff --git a/2-scopes/lib/mocha/mocha.js b/2-scopes/lib/mocha/mocha.js new file mode 100755 index 0000000..1ba2433 --- /dev/null +++ b/2-scopes/lib/mocha/mocha.js @@ -0,0 +1,5338 @@ +; (function () { + + // CommonJS require() + + function require(p) { + var path = require.resolve(p) + , mod = require.modules[path]; + if (!mod) throw new Error('failed to require "' + p + '"'); + if (!mod.exports) { + mod.exports = {}; + mod.call(mod.exports, mod, mod.exports, require.relative(path)); + } + return mod.exports; + } + + require.modules = {}; + + require.resolve = function (path) { + var orig = path + , reg = path + '.js' + , index = path + '/index.js'; + return require.modules[reg] && reg + || require.modules[index] && index + || orig; + }; + + require.register = function (path, fn) { + require.modules[path] = fn; + }; + + require.relative = function (parent) { + return function (p) { + if ('.' != p.charAt(0)) return require(p); + + var path = parent.split('/') + , segs = p.split('/'); + path.pop(); + + for (var i = 0; i < segs.length; i++) { + var seg = segs[i]; + if ('..' == seg) path.pop(); + else if ('.' != seg) path.push(seg); + } + + return require(path.join('/')); + }; + }; + + + require.register("browser/debug.js", function (module, exports, require) { + + module.exports = function (type) { + return function () { + } + }; + + }); // module: browser/debug.js + + require.register("browser/diff.js", function (module, exports, require) { + /* See license.txt for terms of usage */ + + /* + * Text diff implementation. + * + * This library supports the following APIS: + * JsDiff.diffChars: Character by character diff + * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace + * JsDiff.diffLines: Line based diff + * + * JsDiff.diffCss: Diff targeted at CSS content + * + * These methods are based on the implementation proposed in + * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986). + * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927 + */ + var JsDiff = (function () { + function clonePath(path) { + return { newPos: path.newPos, components: path.components.slice(0) }; + } + function removeEmpty(array) { + var ret = []; + for (var i = 0; i < array.length; i++) { + if (array[i]) { + ret.push(array[i]); + } + } + return ret; + } + function escapeHTML(s) { + var n = s; + n = n.replace(/&/g, "&"); + n = n.replace(//g, ">"); + n = n.replace(/"/g, """); + + return n; + } + + + var fbDiff = function (ignoreWhitespace) { + this.ignoreWhitespace = ignoreWhitespace; + }; + fbDiff.prototype = { + diff: function (oldString, newString) { + // Handle the identity case (this is due to unrolling editLength == 0 + if (newString == oldString) { + return [{ value: newString }]; + } + if (!newString) { + return [{ value: oldString, removed: true }]; + } + if (!oldString) { + return [{ value: newString, added: true }]; + } + + newString = this.tokenize(newString); + oldString = this.tokenize(oldString); + + var newLen = newString.length, oldLen = oldString.length; + var maxEditLength = newLen + oldLen; + var bestPath = [{ newPos: -1, components: [] }]; + + // Seed editLength = 0 + var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0); + if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) { + return bestPath[0].components; + } + + for (var editLength = 1; editLength <= maxEditLength; editLength++) { + for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) { + var basePath; + var addPath = bestPath[diagonalPath - 1], + removePath = bestPath[diagonalPath + 1]; + oldPos = (removePath ? removePath.newPos : 0) - diagonalPath; + if (addPath) { + // No one else is going to attempt to use this value, clear it + bestPath[diagonalPath - 1] = undefined; + } + + var canAdd = addPath && addPath.newPos + 1 < newLen; + var canRemove = removePath && 0 <= oldPos && oldPos < oldLen; + if (!canAdd && !canRemove) { + bestPath[diagonalPath] = undefined; + continue; + } + + // Select the diagonal that we want to branch from. We select the prior + // path whose position in the new string is the farthest from the origin + // and does not pass the bounds of the diff graph + if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) { + basePath = clonePath(removePath); + this.pushComponent(basePath.components, oldString[oldPos], undefined, true); + } else { + basePath = clonePath(addPath); + basePath.newPos++; + this.pushComponent(basePath.components, newString[basePath.newPos], true, undefined); + } + + var oldPos = this.extractCommon(basePath, newString, oldString, diagonalPath); + + if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) { + return basePath.components; + } else { + bestPath[diagonalPath] = basePath; + } + } + } + }, + + pushComponent: function (components, value, added, removed) { + var last = components[components.length - 1]; + if (last && last.added === added && last.removed === removed) { + // We need to clone here as the component clone operation is just + // as shallow array clone + components[components.length - 1] = + { value: this.join(last.value, value), added: added, removed: removed }; + } else { + components.push({ value: value, added: added, removed: removed }); + } + }, + extractCommon: function (basePath, newString, oldString, diagonalPath) { + var newLen = newString.length, + oldLen = oldString.length, + newPos = basePath.newPos, + oldPos = newPos - diagonalPath; + while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) { + newPos++; + oldPos++; + + this.pushComponent(basePath.components, newString[newPos], undefined, undefined); + } + basePath.newPos = newPos; + return oldPos; + }, + + equals: function (left, right) { + var reWhitespace = /\S/; + if (this.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right)) { + return true; + } else { + return left == right; + } + }, + join: function (left, right) { + return left + right; + }, + tokenize: function (value) { + return value; + } + }; + + var CharDiff = new fbDiff(); + + var WordDiff = new fbDiff(true); + WordDiff.tokenize = function (value) { + return removeEmpty(value.split(/(\s+|\b)/)); + }; + + var CssDiff = new fbDiff(true); + CssDiff.tokenize = function (value) { + return removeEmpty(value.split(/([{}:;,]|\s+)/)); + }; + + var LineDiff = new fbDiff(); + LineDiff.tokenize = function (value) { + return value.split(/^/m); + }; + + return { + diffChars: function (oldStr, newStr) { return CharDiff.diff(oldStr, newStr); }, + diffWords: function (oldStr, newStr) { return WordDiff.diff(oldStr, newStr); }, + diffLines: function (oldStr, newStr) { return LineDiff.diff(oldStr, newStr); }, + + diffCss: function (oldStr, newStr) { return CssDiff.diff(oldStr, newStr); }, + + createPatch: function (fileName, oldStr, newStr, oldHeader, newHeader) { + var ret = []; + + ret.push("Index: " + fileName); + ret.push("==================================================================="); + ret.push("--- " + fileName + (typeof oldHeader === "undefined" ? "" : "\t" + oldHeader)); + ret.push("+++ " + fileName + (typeof newHeader === "undefined" ? "" : "\t" + newHeader)); + + var diff = LineDiff.diff(oldStr, newStr); + if (!diff[diff.length - 1].value) { + diff.pop(); // Remove trailing newline add + } + diff.push({ value: "", lines: [] }); // Append an empty value to make cleanup easier + + function contextLines(lines) { + return lines.map(function (entry) { return ' ' + entry; }); + } + function eofNL(curRange, i, current) { + var last = diff[diff.length - 2], + isLast = i === diff.length - 2, + isLastOfType = i === diff.length - 3 && (current.added === !last.added || current.removed === !last.removed); + + // Figure out if this is the last line for the given file and missing NL + if (!/\n$/.test(current.value) && (isLast || isLastOfType)) { + curRange.push('\\ No newline at end of file'); + } + } + + var oldRangeStart = 0, newRangeStart = 0, curRange = [], + oldLine = 1, newLine = 1; + for (var i = 0; i < diff.length; i++) { + var current = diff[i], + lines = current.lines || current.value.replace(/\n$/, "").split("\n"); + current.lines = lines; + + if (current.added || current.removed) { + if (!oldRangeStart) { + var prev = diff[i - 1]; + oldRangeStart = oldLine; + newRangeStart = newLine; + + if (prev) { + curRange = contextLines(prev.lines.slice(-4)); + oldRangeStart -= curRange.length; + newRangeStart -= curRange.length; + } + } + curRange.push.apply(curRange, lines.map(function (entry) { return (current.added ? "+" : "-") + entry; })); + eofNL(curRange, i, current); + + if (current.added) { + newLine += lines.length; + } else { + oldLine += lines.length; + } + } else { + if (oldRangeStart) { + // Close out any changes that have been output (or join overlapping) + if (lines.length <= 8 && i < diff.length - 2) { + // Overlapping + curRange.push.apply(curRange, contextLines(lines)); + } else { + // end the range and output + var contextSize = Math.min(lines.length, 4); + ret.push( + "@@ -" + oldRangeStart + "," + (oldLine - oldRangeStart + contextSize) + + " +" + newRangeStart + "," + (newLine - newRangeStart + contextSize) + + " @@"); + ret.push.apply(ret, curRange); + ret.push.apply(ret, contextLines(lines.slice(0, contextSize))); + if (lines.length <= 4) { + eofNL(ret, i, current); + } + + oldRangeStart = 0; newRangeStart = 0; curRange = []; + } + } + oldLine += lines.length; + newLine += lines.length; + } + } + + return ret.join('\n') + '\n'; + }, + + convertChangesToXML: function (changes) { + var ret = []; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + if (change.added) { + ret.push(""); + } else if (change.removed) { + ret.push("~~"); + } + + ret.push(escapeHTML(change.value)); + + if (change.added) { + ret.push("~~"); + } else if (change.removed) { + ret.push(""); + } + } + return ret.join(""); + } + }; + })(); + + if (typeof module !== "undefined") { + module.exports = JsDiff; + } + + }); // module: browser/diff.js + + require.register("browser/events.js", function (module, exports, require) { + + /** + * Module exports. + */ + + exports.EventEmitter = EventEmitter; + + /** + * Check if `obj` is an array. + */ + + function isArray(obj) { + return '[object Array]' == {}.toString.call(obj); + } + + /** + * Event emitter constructor. + * + * @api public + */ + + function EventEmitter() { }; + + /** + * Adds a listener. + * + * @api public + */ + + EventEmitter.prototype.on = function (name, fn) { + if (!this.$events) { + this.$events = {}; + } + + if (!this.$events[name]) { + this.$events[name] = fn; + } else if (isArray(this.$events[name])) { + this.$events[name].push(fn); + } else { + this.$events[name] = [this.$events[name], fn]; + } + + return this; + }; + + EventEmitter.prototype.addListener = EventEmitter.prototype.on; + + /** + * Adds a volatile listener. + * + * @api public + */ + + EventEmitter.prototype.once = function (name, fn) { + var self = this; + + function on() { + self.removeListener(name, on); + fn.apply(this, arguments); + }; + + on.listener = fn; + this.on(name, on); + + return this; + }; + + /** + * Removes a listener. + * + * @api public + */ + + EventEmitter.prototype.removeListener = function (name, fn) { + if (this.$events && this.$events[name]) { + var list = this.$events[name]; + + if (isArray(list)) { + var pos = -1; + + for (var i = 0, l = list.length; i < l; i++) { + if (list[i] === fn || (list[i].listener && list[i].listener === fn)) { + pos = i; + break; + } + } + + if (pos < 0) { + return this; + } + + list.splice(pos, 1); + + if (!list.length) { + delete this.$events[name]; + } + } else if (list === fn || (list.listener && list.listener === fn)) { + delete this.$events[name]; + } + } + + return this; + }; + + /** + * Removes all listeners for an event. + * + * @api public + */ + + EventEmitter.prototype.removeAllListeners = function (name) { + if (name === undefined) { + this.$events = {}; + return this; + } + + if (this.$events && this.$events[name]) { + this.$events[name] = null; + } + + return this; + }; + + /** + * Gets all listeners for a certain event. + * + * @api public + */ + + EventEmitter.prototype.listeners = function (name) { + if (!this.$events) { + this.$events = {}; + } + + if (!this.$events[name]) { + this.$events[name] = []; + } + + if (!isArray(this.$events[name])) { + this.$events[name] = [this.$events[name]]; + } + + return this.$events[name]; + }; + + /** + * Emits an event. + * + * @api public + */ + + EventEmitter.prototype.emit = function (name) { + if (!this.$events) { + return false; + } + + var handler = this.$events[name]; + + if (!handler) { + return false; + } + + var args = [].slice.call(arguments, 1); + + if ('function' == typeof handler) { + handler.apply(this, args); + } else if (isArray(handler)) { + var listeners = handler.slice(); + + for (var i = 0, l = listeners.length; i < l; i++) { + listeners[i].apply(this, args); + } + } else { + return false; + } + + return true; + }; + }); // module: browser/events.js + + require.register("browser/fs.js", function (module, exports, require) { + + }); // module: browser/fs.js + + require.register("browser/path.js", function (module, exports, require) { + + }); // module: browser/path.js + + require.register("browser/progress.js", function (module, exports, require) { + + /** + * Expose `Progress`. + */ + + module.exports = Progress; + + /** + * Initialize a new `Progress` indicator. + */ + + function Progress() { + this.percent = 0; + this.size(0); + this.fontSize(11); + this.font('helvetica, arial, sans-serif'); + } + + /** + * Set progress size to `n`. + * + * @param {Number} n + * @return {Progress} for chaining + * @api public + */ + + Progress.prototype.size = function (n) { + this._size = n; + return this; + }; + + /** + * Set text to `str`. + * + * @param {String} str + * @return {Progress} for chaining + * @api public + */ + + Progress.prototype.text = function (str) { + this._text = str; + return this; + }; + + /** + * Set font size to `n`. + * + * @param {Number} n + * @return {Progress} for chaining + * @api public + */ + + Progress.prototype.fontSize = function (n) { + this._fontSize = n; + return this; + }; + + /** + * Set font `family`. + * + * @param {String} family + * @return {Progress} for chaining + */ + + Progress.prototype.font = function (family) { + this._font = family; + return this; + }; + + /** + * Update percentage to `n`. + * + * @param {Number} n + * @return {Progress} for chaining + */ + + Progress.prototype.update = function (n) { + this.percent = n; + return this; + }; + + /** + * Draw on `ctx`. + * + * @param {CanvasRenderingContext2d} ctx + * @return {Progress} for chaining + */ + + Progress.prototype.draw = function (ctx) { + var percent = Math.min(this.percent, 100) + , size = this._size + , half = size / 2 + , x = half + , y = half + , rad = half - 1 + , fontSize = this._fontSize; + + ctx.font = fontSize + 'px ' + this._font; + + var angle = Math.PI * 2 * (percent / 100); + ctx.clearRect(0, 0, size, size); + + // outer circle + ctx.strokeStyle = '#9f9f9f'; + ctx.beginPath(); + ctx.arc(x, y, rad, 0, angle, false); + ctx.stroke(); + + // inner circle + ctx.strokeStyle = '#eee'; + ctx.beginPath(); + ctx.arc(x, y, rad - 1, 0, angle, true); + ctx.stroke(); + + // text + var text = this._text || (percent | 0) + '%' + , w = ctx.measureText(text).width; + + ctx.fillText( + text + , x - w / 2 + 1 + , y + fontSize / 2 - 1); + + return this; + }; + + }); // module: browser/progress.js + + require.register("browser/tty.js", function (module, exports, require) { + + exports.isatty = function () { + return true; + }; + + exports.getWindowSize = function () { + return [window.innerHeight, window.innerWidth]; + }; + }); // module: browser/tty.js + + require.register("context.js", function (module, exports, require) { + + /** + * Expose `Context`. + */ + + module.exports = Context; + + /** + * Initialize a new `Context`. + * + * @api private + */ + + function Context() { } + + /** + * Set or get the context `Runnable` to `runnable`. + * + * @param {Runnable} runnable + * @return {Context} + * @api private + */ + + Context.prototype.runnable = function (runnable) { + if (0 == arguments.length) return this._runnable; + this.test = this._runnable = runnable; + return this; + }; + + /** + * Set test timeout `ms`. + * + * @param {Number} ms + * @return {Context} self + * @api private + */ + + Context.prototype.timeout = function (ms) { + this.runnable().timeout(ms); + return this; + }; + + /** + * Set test slowness threshold `ms`. + * + * @param {Number} ms + * @return {Context} self + * @api private + */ + + Context.prototype.slow = function (ms) { + this.runnable().slow(ms); + return this; + }; + + /** + * Inspect the context void of `._runnable`. + * + * @return {String} + * @api private + */ + + Context.prototype.inspect = function () { + return JSON.stringify(this, function (key, val) { + if ('_runnable' == key) return; + if ('test' == key) return; + return val; + }, 2); + }; + + }); // module: context.js + + require.register("hook.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Runnable = require('./runnable'); + + /** + * Expose `Hook`. + */ + + module.exports = Hook; + + /** + * Initialize a new `Hook` with the given `title` and callback `fn`. + * + * @param {String} title + * @param {Function} fn + * @api private + */ + + function Hook(title, fn) { + Runnable.call(this, title, fn); + this.type = 'hook'; + } + + /** + * Inherit from `Runnable.prototype`. + */ + + function F() { }; + F.prototype = Runnable.prototype; + Hook.prototype = new F; + Hook.prototype.constructor = Hook; + + + /** + * Get or set the test `err`. + * + * @param {Error} err + * @return {Error} + * @api public + */ + + Hook.prototype.error = function (err) { + if (0 == arguments.length) { + var err = this._error; + this._error = null; + return err; + } + + this._error = err; + }; + + }); // module: hook.js + + require.register("interfaces/bdd.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Suite = require('../suite') + , Test = require('../test'); + + /** + * BDD-style interface: + * + * describe('Array', function(){ + * describe('#indexOf()', function(){ + * it('should return -1 when not present', function(){ + * + * }); + * + * it('should return the index when present', function(){ + * + * }); + * }); + * }); + * + */ + + module.exports = function (suite) { + var suites = [suite]; + + suite.on('pre-require', function (context, file, mocha) { + + /** + * Execute before running tests. + */ + + context.before = function (fn) { + suites[0].beforeAll(fn); + }; + + /** + * Execute after running tests. + */ + + context.after = function (fn) { + suites[0].afterAll(fn); + }; + + /** + * Execute before each test case. + */ + + context.beforeEach = function (fn) { + suites[0].beforeEach(fn); + }; + + /** + * Execute after each test case. + */ + + context.afterEach = function (fn) { + suites[0].afterEach(fn); + }; + + /** + * Describe a "suite" with the given `title` + * and callback `fn` containing nested suites + * and/or tests. + */ + + context.describe = context.context = function (title, fn) { + var suite = Suite.create(suites[0], title); + suites.unshift(suite); + fn.call(suite); + suites.shift(); + return suite; + }; + + /** + * Pending describe. + */ + + context.xdescribe = + context.xcontext = + context.describe.skip = function (title, fn) { + var suite = Suite.create(suites[0], title); + suite.pending = true; + suites.unshift(suite); + fn.call(suite); + suites.shift(); + }; + + /** + * Exclusive suite. + */ + + context.describe.only = function (title, fn) { + var suite = context.describe(title, fn); + mocha.grep(suite.fullTitle()); + }; + + /** + * Describe a specification or test-case + * with the given `title` and callback `fn` + * acting as a thunk. + */ + + context.it = context.specify = function (title, fn) { + var suite = suites[0]; + if (suite.pending) var fn = null; + var test = new Test(title, fn); + suite.addTest(test); + return test; + }; + + /** + * Exclusive test-case. + */ + + context.it.only = function (title, fn) { + var test = context.it(title, fn); + mocha.grep(test.fullTitle()); + }; + + /** + * Pending test case. + */ + + context.xit = + context.xspecify = + context.it.skip = function (title) { + context.it(title); + }; + }); + }; + + }); // module: interfaces/bdd.js + + require.register("interfaces/exports.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Suite = require('../suite') + , Test = require('../test'); + + /** + * TDD-style interface: + * + * exports.Array = { + * '#indexOf()': { + * 'should return -1 when the value is not present': function(){ + * + * }, + * + * 'should return the correct index when the value is present': function(){ + * + * } + * } + * }; + * + */ + + module.exports = function (suite) { + var suites = [suite]; + + suite.on('require', visit); + + function visit(obj) { + var suite; + for (var key in obj) { + if ('function' == typeof obj[key]) { + var fn = obj[key]; + switch (key) { + case 'before': + suites[0].beforeAll(fn); + break; + case 'after': + suites[0].afterAll(fn); + break; + case 'beforeEach': + suites[0].beforeEach(fn); + break; + case 'afterEach': + suites[0].afterEach(fn); + break; + default: + suites[0].addTest(new Test(key, fn)); + } + } else { + var suite = Suite.create(suites[0], key); + suites.unshift(suite); + visit(obj[key]); + suites.shift(); + } + } + } + }; + + }); // module: interfaces/exports.js + + require.register("interfaces/index.js", function (module, exports, require) { + + exports.bdd = require('./bdd'); + exports.tdd = require('./tdd'); + exports.qunit = require('./qunit'); + exports.exports = require('./exports'); + + }); // module: interfaces/index.js + + require.register("interfaces/qunit.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Suite = require('../suite') + , Test = require('../test'); + + /** + * QUnit-style interface: + * + * suite('Array'); + * + * test('#length', function(){ + * var arr = [1,2,3]; + * ok(arr.length == 3); + * }); + * + * test('#indexOf()', function(){ + * var arr = [1,2,3]; + * ok(arr.indexOf(1) == 0); + * ok(arr.indexOf(2) == 1); + * ok(arr.indexOf(3) == 2); + * }); + * + * suite('String'); + * + * test('#length', function(){ + * ok('foo'.length == 3); + * }); + * + */ + + module.exports = function (suite) { + var suites = [suite]; + + suite.on('pre-require', function (context) { + + /** + * Execute before running tests. + */ + + context.before = function (fn) { + suites[0].beforeAll(fn); + }; + + /** + * Execute after running tests. + */ + + context.after = function (fn) { + suites[0].afterAll(fn); + }; + + /** + * Execute before each test case. + */ + + context.beforeEach = function (fn) { + suites[0].beforeEach(fn); + }; + + /** + * Execute after each test case. + */ + + context.afterEach = function (fn) { + suites[0].afterEach(fn); + }; + + /** + * Describe a "suite" with the given `title`. + */ + + context.suite = function (title) { + if (suites.length > 1) suites.shift(); + var suite = Suite.create(suites[0], title); + suites.unshift(suite); + }; + + /** + * Describe a specification or test-case + * with the given `title` and callback `fn` + * acting as a thunk. + */ + + context.test = function (title, fn) { + suites[0].addTest(new Test(title, fn)); + }; + }); + }; + + }); // module: interfaces/qunit.js + + require.register("interfaces/tdd.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Suite = require('../suite') + , Test = require('../test'); + + /** + * TDD-style interface: + * + * suite('Array', function(){ + * suite('#indexOf()', function(){ + * suiteSetup(function(){ + * + * }); + * + * test('should return -1 when not present', function(){ + * + * }); + * + * test('should return the index when present', function(){ + * + * }); + * + * suiteTeardown(function(){ + * + * }); + * }); + * }); + * + */ + + module.exports = function (suite) { + var suites = [suite]; + + suite.on('pre-require', function (context, file, mocha) { + + /** + * Execute before each test case. + */ + + context.setup = function (fn) { + suites[0].beforeEach(fn); + }; + + /** + * Execute after each test case. + */ + + context.teardown = function (fn) { + suites[0].afterEach(fn); + }; + + /** + * Execute before the suite. + */ + + context.suiteSetup = function (fn) { + suites[0].beforeAll(fn); + }; + + /** + * Execute after the suite. + */ + + context.suiteTeardown = function (fn) { + suites[0].afterAll(fn); + }; + + /** + * Describe a "suite" with the given `title` + * and callback `fn` containing nested suites + * and/or tests. + */ + + context.suite = function (title, fn) { + var suite = Suite.create(suites[0], title); + suites.unshift(suite); + fn.call(suite); + suites.shift(); + return suite; + }; + + /** + * Exclusive test-case. + */ + + context.suite.only = function (title, fn) { + var suite = context.suite(title, fn); + mocha.grep(suite.fullTitle()); + }; + + /** + * Describe a specification or test-case + * with the given `title` and callback `fn` + * acting as a thunk. + */ + + context.test = function (title, fn) { + var test = new Test(title, fn); + suites[0].addTest(test); + return test; + }; + + /** + * Exclusive test-case. + */ + + context.test.only = function (title, fn) { + var test = context.test(title, fn); + mocha.grep(test.fullTitle()); + }; + + /** + * Pending test case. + */ + + context.test.skip = function (title) { + context.test(title); + }; + }); + }; + + }); // module: interfaces/tdd.js + + require.register("mocha.js", function (module, exports, require) { + /*! + * mocha + * Copyright(c) 2011 TJ Holowaychuk + * MIT Licensed + */ + + /** + * Module dependencies. + */ + + var path = require('browser/path') + , utils = require('./utils'); + + /** + * Expose `Mocha`. + */ + + exports = module.exports = Mocha; + + /** + * Expose internals. + */ + + exports.utils = utils; + exports.interfaces = require('./interfaces'); + exports.reporters = require('./reporters'); + exports.Runnable = require('./runnable'); + exports.Context = require('./context'); + exports.Runner = require('./runner'); + exports.Suite = require('./suite'); + exports.Hook = require('./hook'); + exports.Test = require('./test'); + + /** + * Return image `name` path. + * + * @param {String} name + * @return {String} + * @api private + */ + + function image(name) { + return __dirname + '/../images/' + name + '.png'; + } + + /** + * Setup mocha with `options`. + * + * Options: + * + * - `ui` name "bdd", "tdd", "exports" etc + * - `reporter` reporter instance, defaults to `mocha.reporters.Dot` + * - `globals` array of accepted globals + * - `timeout` timeout in milliseconds + * - `bail` bail on the first test failure + * - `slow` milliseconds to wait before considering a test slow + * - `ignoreLeaks` ignore global leaks + * - `grep` string or regexp to filter tests with + * + * @param {Object} options + * @api public + */ + + function Mocha(options) { + options = options || {}; + this.files = []; + this.options = options; + this.grep(options.grep); + this.suite = new exports.Suite('', new exports.Context); + this.ui(options.ui); + this.bail(options.bail); + this.reporter(options.reporter); + if (options.timeout) this.timeout(options.timeout); + if (options.slow) this.slow(options.slow); + } + + /** + * Enable or disable bailing on the first failure. + * + * @param {Boolean} [bail] + * @api public + */ + + Mocha.prototype.bail = function (bail) { + if (0 == arguments.length) bail = true; + this.suite.bail(bail); + return this; + }; + + /** + * Add test `file`. + * + * @param {String} file + * @api public + */ + + Mocha.prototype.addFile = function (file) { + this.files.push(file); + return this; + }; + + /** + * Set reporter to `reporter`, defaults to "dot". + * + * @param {String|Function} reporter name or constructor + * @api public + */ + + Mocha.prototype.reporter = function (reporter) { + if ('function' == typeof reporter) { + this._reporter = reporter; + } else { + reporter = reporter || 'dot'; + try { + this._reporter = require('./reporters/' + reporter); + } catch (err) { + this._reporter = require(reporter); + } + if (!this._reporter) throw new Error('invalid reporter "' + reporter + '"'); + } + return this; + }; + + /** + * Set test UI `name`, defaults to "bdd". + * + * @param {String} bdd + * @api public + */ + + Mocha.prototype.ui = function (name) { + name = name || 'bdd'; + this._ui = exports.interfaces[name]; + if (!this._ui) throw new Error('invalid interface "' + name + '"'); + this._ui = this._ui(this.suite); + return this; + }; + + /** + * Load registered files. + * + * @api private + */ + + Mocha.prototype.loadFiles = function (fn) { + var self = this; + var suite = this.suite; + var pending = this.files.length; + this.files.forEach(function (file) { + file = path.resolve(file); + suite.emit('pre-require', global, file, self); + suite.emit('require', require(file), file, self); + suite.emit('post-require', global, file, self); + --pending || (fn && fn()); + }); + }; + + /** + * Enable growl support. + * + * @api private + */ + + Mocha.prototype._growl = function (runner, reporter) { + var notify = require('growl'); + + runner.on('end', function () { + var stats = reporter.stats; + if (stats.failures) { + var msg = stats.failures + ' of ' + runner.total + ' tests failed'; + notify(msg, { name: 'mocha', title: 'Failed', image: image('error') }); + } else { + notify(stats.passes + ' tests passed in ' + stats.duration + 'ms', { + name: 'mocha' + , title: 'Passed' + , image: image('ok') + }); + } + }); + }; + + /** + * Add regexp to grep, if `re` is a string it is escaped. + * + * @param {RegExp|String} re + * @return {Mocha} + * @api public + */ + + Mocha.prototype.grep = function (re) { + this.options.grep = 'string' == typeof re + ? new RegExp(utils.escapeRegexp(re)) + : re; + return this; + }; + + /** + * Invert `.grep()` matches. + * + * @return {Mocha} + * @api public + */ + + Mocha.prototype.invert = function () { + this.options.invert = true; + return this; + }; + + /** + * Ignore global leaks. + * + * @return {Mocha} + * @api public + */ + + Mocha.prototype.ignoreLeaks = function () { + this.options.ignoreLeaks = true; + return this; + }; + + /** + * Enable global leak checking. + * + * @return {Mocha} + * @api public + */ + + Mocha.prototype.checkLeaks = function () { + this.options.ignoreLeaks = false; + return this; + }; + + /** + * Enable growl support. + * + * @return {Mocha} + * @api public + */ + + Mocha.prototype.growl = function () { + this.options.growl = true; + return this; + }; + + /** + * Ignore `globals` array or string. + * + * @param {Array|String} globals + * @return {Mocha} + * @api public + */ + + Mocha.prototype.globals = function (globals) { + this.options.globals = (this.options.globals || []).concat(globals); + return this; + }; + + /** + * Set the timeout in milliseconds. + * + * @param {Number} timeout + * @return {Mocha} + * @api public + */ + + Mocha.prototype.timeout = function (timeout) { + this.suite.timeout(timeout); + return this; + }; + + /** + * Set slowness threshold in milliseconds. + * + * @param {Number} slow + * @return {Mocha} + * @api public + */ + + Mocha.prototype.slow = function (slow) { + this.suite.slow(slow); + return this; + }; + + /** + * Makes all tests async (accepting a callback) + * + * @return {Mocha} + * @api public + */ + + Mocha.prototype.asyncOnly = function () { + this.options.asyncOnly = true; + return this; + }; + + /** + * Run tests and invoke `fn()` when complete. + * + * @param {Function} fn + * @return {Runner} + * @api public + */ + + Mocha.prototype.run = function (fn) { + if (this.files.length) this.loadFiles(); + var suite = this.suite; + var options = this.options; + var runner = new exports.Runner(suite); + var reporter = new this._reporter(runner); + runner.ignoreLeaks = false !== options.ignoreLeaks; + runner.asyncOnly = options.asyncOnly; + if (options.grep) runner.grep(options.grep, options.invert); + if (options.globals) runner.globals(options.globals); + if (options.growl) this._growl(runner, reporter); + return runner.run(fn); + }; + + }); // module: mocha.js + + require.register("ms.js", function (module, exports, require) { + + /** + * Helpers. + */ + + var s = 1000; + var m = s * 60; + var h = m * 60; + var d = h * 24; + + /** + * Parse or format the given `val`. + * + * @param {String|Number} val + * @return {String|Number} + * @api public + */ + + module.exports = function (val) { + if ('string' == typeof val) return parse(val); + return format(val); + } + + /** + * Parse the given `str` and return milliseconds. + * + * @param {String} str + * @return {Number} + * @api private + */ + + function parse(str) { + var m = /^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i.exec(str); + if (!m) return; + var n = parseFloat(m[1]); + var type = (m[2] || 'ms').toLowerCase(); + switch (type) { + case 'years': + case 'year': + case 'y': + return n * 31557600000; + case 'days': + case 'day': + case 'd': + return n * 86400000; + case 'hours': + case 'hour': + case 'h': + return n * 3600000; + case 'minutes': + case 'minute': + case 'm': + return n * 60000; + case 'seconds': + case 'second': + case 's': + return n * 1000; + case 'ms': + return n; + } + } + + /** + * Format the given `ms`. + * + * @param {Number} ms + * @return {String} + * @api public + */ + + function format(ms) { + if (ms == d) return Math.round(ms / d) + ' day'; + if (ms > d) return Math.round(ms / d) + ' days'; + if (ms == h) return Math.round(ms / h) + ' hour'; + if (ms > h) return Math.round(ms / h) + ' hours'; + if (ms == m) return Math.round(ms / m) + ' minute'; + if (ms > m) return Math.round(ms / m) + ' minutes'; + if (ms == s) return Math.round(ms / s) + ' second'; + if (ms > s) return Math.round(ms / s) + ' seconds'; + return ms + ' ms'; + } + }); // module: ms.js + + require.register("reporters/base.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var tty = require('browser/tty') + , diff = require('browser/diff') + , ms = require('../ms'); + + /** + * Save timer references to avoid Sinon interfering (see GH-237). + */ + + var Date = global.Date + , setTimeout = global.setTimeout + , setInterval = global.setInterval + , clearTimeout = global.clearTimeout + , clearInterval = global.clearInterval; + + /** + * Check if both stdio streams are associated with a tty. + */ + + var isatty = tty.isatty(1) && tty.isatty(2); + + /** + * Expose `Base`. + */ + + exports = module.exports = Base; + + /** + * Enable coloring by default. + */ + + exports.useColors = isatty; + + /** + * Default color map. + */ + + exports.colors = { + 'pass': 90 + , 'fail': 31 + , 'bright pass': 92 + , 'bright fail': 91 + , 'bright yellow': 93 + , 'pending': 36 + , 'suite': 0 + , 'error title': 0 + , 'error message': 31 + , 'error stack': 90 + , 'checkmark': 32 + , 'fast': 90 + , 'medium': 33 + , 'slow': 31 + , 'green': 32 + , 'light': 90 + , 'diff gutter': 90 + , 'diff added': 42 + , 'diff removed': 41 + }; + + /** + * Default symbol map. + */ + + exports.symbols = { + ok: '✓', + err: '✖', + dot: '․' + }; + + // With node.js on Windows: use symbols available in terminal default fonts + if ('win32' == process.platform) { + exports.symbols.ok = '\u221A'; + exports.symbols.err = '\u00D7'; + exports.symbols.dot = '.'; + } + + /** + * Color `str` with the given `type`, + * allowing colors to be disabled, + * as well as user-defined color + * schemes. + * + * @param {String} type + * @param {String} str + * @return {String} + * @api private + */ + + var color = exports.color = function (type, str) { + if (!exports.useColors) return str; + return '\u001b[' + exports.colors[type] + 'm' + str + '\u001b[0m'; + }; + + /** + * Expose term window size, with some + * defaults for when stderr is not a tty. + */ + + exports.window = { + width: isatty + ? process.stdout.getWindowSize + ? process.stdout.getWindowSize(1)[0] + : tty.getWindowSize()[1] + : 75 + }; + + /** + * Expose some basic cursor interactions + * that are common among reporters. + */ + + exports.cursor = { + hide: function () { + process.stdout.write('\u001b[?25l'); + }, + + show: function () { + process.stdout.write('\u001b[?25h'); + }, + + deleteLine: function () { + process.stdout.write('\u001b[2K'); + }, + + beginningOfLine: function () { + process.stdout.write('\u001b[0G'); + }, + + CR: function () { + exports.cursor.deleteLine(); + exports.cursor.beginningOfLine(); + } + }; + + /** + * Outut the given `failures` as a list. + * + * @param {Array} failures + * @api public + */ + + exports.list = function (failures) { + console.error(); + failures.forEach(function (test, i) { + // format + var fmt = color('error title', ' %s) %s:\n') + + color('error message', ' %s') + + color('error stack', '\n%s\n'); + + // msg + var err = test.err + , message = err.message || '' + , stack = err.stack || message + , index = stack.indexOf(message) + message.length + , msg = stack.slice(0, index) + , actual = err.actual + , expected = err.expected + , escape = true; + + // explicitly show diff + if (err.showDiff) { + escape = false; + err.actual = actual = JSON.stringify(actual, null, 2); + err.expected = expected = JSON.stringify(expected, null, 2); + } + + // actual / expected diff + if ('string' == typeof actual && 'string' == typeof expected) { + var len = Math.max(actual.length, expected.length); + + if (len < 20) msg = errorDiff(err, 'Chars', escape); + else msg = errorDiff(err, 'Words', escape); + + // linenos + var lines = msg.split('\n'); + if (lines.length > 4) { + var width = String(lines.length).length; + msg = lines.map(function (str, i) { + return pad(++i, width) + ' |' + ' ' + str; + }).join('\n'); + } + + // legend + msg = '\n' + + color('diff removed', 'actual') + + ' ' + + color('diff added', 'expected') + + '\n\n' + + msg + + '\n'; + + // indent + msg = msg.replace(/^/gm, ' '); + + fmt = color('error title', ' %s) %s:\n%s') + + color('error stack', '\n%s\n'); + } + + // indent stack trace without msg + stack = stack.slice(index ? index + 1 : index) + .replace(/^/gm, ' '); + + console.error(fmt, (i + 1), test.fullTitle(), msg, stack); + }); + }; + + /** + * Initialize a new `Base` reporter. + * + * All other reporters generally + * inherit from this reporter, providing + * stats such as test duration, number + * of tests passed / failed etc. + * + * @param {Runner} runner + * @api public + */ + + function Base(runner) { + var self = this + , stats = this.stats = { suites: 0, tests: 0, passes: 0, pending: 0, failures: 0 } + , failures = this.failures = []; + + if (!runner) return; + this.runner = runner; + + runner.stats = stats; + + runner.on('start', function () { + stats.start = new Date; + }); + + runner.on('suite', function (suite) { + stats.suites = stats.suites || 0; + suite.root || stats.suites++; + }); + + runner.on('test end', function (test) { + stats.tests = stats.tests || 0; + stats.tests++; + }); + + runner.on('pass', function (test) { + stats.passes = stats.passes || 0; + + var medium = test.slow() / 2; + test.speed = test.duration > test.slow() + ? 'slow' + : test.duration > medium + ? 'medium' + : 'fast'; + + stats.passes++; + }); + + runner.on('fail', function (test, err) { + stats.failures = stats.failures || 0; + stats.failures++; + test.err = err; + failures.push(test); + }); + + runner.on('end', function () { + stats.end = new Date; + stats.duration = new Date - stats.start; + }); + + runner.on('pending', function () { + stats.pending++; + }); + } + + /** + * Output common epilogue used by many of + * the bundled reporters. + * + * @api public + */ + + Base.prototype.epilogue = function () { + var stats = this.stats + , fmt + , tests; + + console.log(); + + function pluralize(n) { + return 1 == n ? 'test' : 'tests'; + } + + // failure + if (stats.failures) { + fmt = color('bright fail', ' ' + exports.symbols.err) + + color('fail', ' %d of %d %s failed') + + color('light', ':') + + console.error(fmt, + stats.failures, + this.runner.total, + pluralize(this.runner.total)); + + Base.list(this.failures); + console.error(); + return; + } + + // pass + fmt = color('bright pass', ' ') + + color('green', ' %d %s complete') + + color('light', ' (%s)'); + + console.log(fmt, + stats.tests || 0, + pluralize(stats.tests), + ms(stats.duration)); + + // pending + if (stats.pending) { + fmt = color('pending', ' ') + + color('pending', ' %d %s pending'); + + console.log(fmt, stats.pending, pluralize(stats.pending)); + } + + console.log(); + }; + + /** + * Pad the given `str` to `len`. + * + * @param {String} str + * @param {String} len + * @return {String} + * @api private + */ + + function pad(str, len) { + str = String(str); + return Array(len - str.length + 1).join(' ') + str; + } + + /** + * Return a character diff for `err`. + * + * @param {Error} err + * @return {String} + * @api private + */ + + function errorDiff(err, type, escape) { + return diff['diff' + type](err.actual, err.expected).map(function (str) { + if (escape) { + str.value = str.value + .replace(/\t/g, '') + .replace(/\r/g, '') + .replace(/\n/g, '\n'); + } + if (str.added) return colorLines('diff added', str.value); + if (str.removed) return colorLines('diff removed', str.value); + return str.value; + }).join(''); + } + + /** + * Color lines for `str`, using the color `name`. + * + * @param {String} name + * @param {String} str + * @return {String} + * @api private + */ + + function colorLines(name, str) { + return str.split('\n').map(function (str) { + return color(name, str); + }).join('\n'); + } + + }); // module: reporters/base.js + + require.register("reporters/doc.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , utils = require('../utils'); + + /** + * Expose `Doc`. + */ + + exports = module.exports = Doc; + + /** + * Initialize a new `Doc` reporter. + * + * @param {Runner} runner + * @api public + */ + + function Doc(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , total = runner.total + , indents = 2; + + function indent() { + return Array(indents).join(' '); + } + + runner.on('suite', function (suite) { + if (suite.root) return; + ++indents; + console.log('%s

', indent()); + ++indents; + console.log('%s

%s

', indent(), utils.escape(suite.title)); + console.log('%s

', indent()); + }); + + runner.on('suite end', function (suite) { + if (suite.root) return; + console.log('%s', indent()); + --indents; + console.log('%s

', indent()); + --indents; + }); + + runner.on('pass', function (test) { + console.log('%s

', indent(), utils.escape(test.title)); + var code = utils.escape(utils.clean(test.fn.toString())); + console.log('%s

%s

', indent(), code); + }); + } + + }); // module: reporters/doc.js + + require.register("reporters/dot.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , color = Base.color; + + /** + * Expose `Dot`. + */ + + exports = module.exports = Dot; + + /** + * Initialize a new `Dot` matrix test reporter. + * + * @param {Runner} runner + * @api public + */ + + function Dot(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , width = Base.window.width * .75 | 0 + , n = 0; + + runner.on('start', function () { + process.stdout.write('\n '); + }); + + runner.on('pending', function (test) { + process.stdout.write(color('pending', Base.symbols.dot)); + }); + + runner.on('pass', function (test) { + if (++n % width == 0) process.stdout.write('\n '); + if ('slow' == test.speed) { + process.stdout.write(color('bright yellow', Base.symbols.dot)); + } else { + process.stdout.write(color(test.speed, Base.symbols.dot)); + } + }); + + runner.on('fail', function (test, err) { + if (++n % width == 0) process.stdout.write('\n '); + process.stdout.write(color('fail', Base.symbols.dot)); + }); + + runner.on('end', function () { + console.log(); + self.epilogue(); + }); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + Dot.prototype = new F; + Dot.prototype.constructor = Dot; + + }); // module: reporters/dot.js + + require.register("reporters/html-cov.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var JSONCov = require('./json-cov') + , fs = require('browser/fs'); + + /** + * Expose `HTMLCov`. + */ + + exports = module.exports = HTMLCov; + + /** + * Initialize a new `JsCoverage` reporter. + * + * @param {Runner} runner + * @api public + */ + + function HTMLCov(runner) { + var jade = require('jade') + , file = __dirname + '/templates/coverage.jade' + , str = fs.readFileSync(file, 'utf8') + , fn = jade.compile(str, { filename: file }) + , self = this; + + JSONCov.call(this, runner, false); + + runner.on('end', function () { + process.stdout.write(fn({ + cov: self.cov + , coverageClass: coverageClass + })); + }); + } + + /** + * Return coverage class for `n`. + * + * @return {String} + * @api private + */ + + function coverageClass(n) { + if (n >= 75) return 'high'; + if (n >= 50) return 'medium'; + if (n >= 25) return 'low'; + return 'terrible'; + } + }); // module: reporters/html-cov.js + + require.register("reporters/html.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , utils = require('../utils') + , Progress = require('../browser/progress') + , escape = utils.escape; + + /** + * Save timer references to avoid Sinon interfering (see GH-237). + */ + + var Date = global.Date + , setTimeout = global.setTimeout + , setInterval = global.setInterval + , clearTimeout = global.clearTimeout + , clearInterval = global.clearInterval; + + /** + * Expose `Doc`. + */ + + exports = module.exports = HTML; + + /** + * Stats template. + */ + + var statsTemplate = '

passes: 0
failures: 0
duration: 0s

'; + + /** + * Initialize a new `Doc` reporter. + * + * @param {Runner} runner + * @api public + */ + + function HTML(runner, root) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , total = runner.total + , stat = fragment(statsTemplate) + , items = stat.getElementsByTagName('li') + , passes = items[1].getElementsByTagName('em')[0] + , passesLink = items[1].getElementsByTagName('a')[0] + , failures = items[2].getElementsByTagName('em')[0] + , failuresLink = items[2].getElementsByTagName('a')[0] + , duration = items[3].getElementsByTagName('em')[0] + , canvas = stat.getElementsByTagName('canvas')[0] + , report = fragment('

') + , stack = [report] + , progress + , ctx + + root = root || document.getElementById('mocha'); + + if (canvas.getContext) { + var ratio = window.devicePixelRatio || 1; + canvas.style.width = canvas.width; + canvas.style.height = canvas.height; + canvas.width *= ratio; + canvas.height *= ratio; + ctx = canvas.getContext('2d'); + ctx.scale(ratio, ratio); + progress = new Progress; + } + + if (!root) return error('#mocha div missing, add it to your document'); + + // pass toggle + on(passesLink, 'click', function () { + unhide(); + var name = /pass/.test(report.className) ? '' : ' pass'; + report.className = report.className.replace(/fail|pass/g, '') + name; + if (report.className.trim()) hideSuitesWithout('test pass'); + }); + + // failure toggle + on(failuresLink, 'click', function () { + unhide(); + var name = /fail/.test(report.className) ? '' : ' fail'; + report.className = report.className.replace(/fail|pass/g, '') + name; + if (report.className.trim()) hideSuitesWithout('test fail'); + }); + + root.appendChild(stat); + root.appendChild(report); + + if (progress) progress.size(40); + + runner.on('suite', function (suite) { + if (suite.root) return; + + // suite + var url = '?grep=' + encodeURIComponent(suite.fullTitle()) + window.location.hash; + var el = fragment('

%s

', url, escape(suite.title)); + + // container + stack[0].appendChild(el); + stack.unshift(document.createElement('ul')); + el.appendChild(stack[0]); + }); + + runner.on('suite end', function (suite) { + if (suite.root) return; + stack.shift(); + }); + + runner.on('fail', function (test, err) { + if ('hook' == test.type) runner.emit('test end', test); + }); + + runner.on('test end', function (test) { + // TODO: add to stats + var percent = stats.tests / this.total * 100 | 0; + if (progress) progress.update(percent).draw(ctx); + + // update stats + var ms = new Date - stats.start; + text(passes, stats.passes); + text(failures, stats.failures); + text(duration, (ms / 1000).toFixed(2)); + + // test + if ('passed' == test.state) { + var el = fragment('

%e%ems ‣

', test.speed, test.title, test.duration, encodeURIComponent(test.fullTitle()) + window.location.hash); + } else if (test.pending) { + var el = fragment('

%e

', test.title); + } else { + var el = fragment('

%e ‣

', test.title, encodeURIComponent(test.fullTitle()) + window.location.hash); + var str = test.err.stack || test.err.toString(); + + // FF / Opera do not add the message + if (!~str.indexOf(test.err.message)) { + str = test.err.message + '\n' + str; + } + + // <=IE7 stringifies to [Object Error]. Since it can be overloaded, we + // check for the result of the stringifying. + if ('[object Error]' == str) str = test.err.message; + + // Safari doesn't give you a stack. Let's at least provide a source line. + if (!test.err.stack && test.err.sourceURL && test.err.line !== undefined) { + str += "\n(" + test.err.sourceURL + ":" + test.err.line + ")"; + } + + el.appendChild(fragment('

%e

', str)); + } + + // toggle code + // TODO: defer + if (!test.pending) { + var h2 = el.getElementsByTagName('h2')[0]; + + on(h2, 'click', function () { + pre.style.display = 'none' == pre.style.display + ? 'block' + : 'none'; + }); + + var pre = fragment('

%e

', utils.clean(test.fn.toString())); + el.appendChild(pre); + pre.style.display = 'none'; + } + + // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack. + if (stack[0]) stack[0].appendChild(el); + }); + } + + /** + * Display error `msg`. + */ + + function error(msg) { + document.body.appendChild(fragment('

', msg)); + } + + /** + * Return a DOM fragment from `html`. + */ + + function fragment(html) { + var args = arguments + , div = document.createElement('div') + , i = 1; + + div.innerHTML = html.replace(/%([se])/g, function (_, type) { + switch (type) { + case 's': return String(args[i++]); + case 'e': return escape(args[i++]); + } + }); + + return div.firstChild; + } + + /** + * Check for suites that do not have elements + * with `classname`, and hide them. + */ + + function hideSuitesWithout(classname) { + var suites = document.getElementsByClassName('suite'); + for (var i = 0; i < suites.length; i++) { + var els = suites[i].getElementsByClassName(classname); + if (0 == els.length) suites[i].className += ' hidden'; + } + } + + /** + * Unhide .hidden suites. + */ + + function unhide() { + var els = document.getElementsByClassName('suite hidden'); + for (var i = 0; i < els.length; ++i) { + els[i].className = els[i].className.replace('suite hidden', 'suite'); + } + } + + /** + * Set `el` text to `str`. + */ + + function text(el, str) { + if (el.textContent) { + el.textContent = str; + } else { + el.innerText = str; + } + } + + /** + * Listen on `event` with callback `fn`. + */ + + function on(el, event, fn) { + if (el.addEventListener) { + el.addEventListener(event, fn, false); + } else { + el.attachEvent('on' + event, fn); + } + } + + }); // module: reporters/html.js + + require.register("reporters/index.js", function (module, exports, require) { + + exports.Base = require('./base'); + exports.Dot = require('./dot'); + exports.Doc = require('./doc'); + exports.TAP = require('./tap'); + exports.JSON = require('./json'); + exports.HTML = require('./html'); + exports.List = require('./list'); + exports.Min = require('./min'); + exports.Spec = require('./spec'); + exports.Nyan = require('./nyan'); + exports.XUnit = require('./xunit'); + exports.Markdown = require('./markdown'); + exports.Progress = require('./progress'); + exports.Landing = require('./landing'); + exports.JSONCov = require('./json-cov'); + exports.HTMLCov = require('./html-cov'); + exports.JSONStream = require('./json-stream'); + exports.Teamcity = require('./teamcity'); + + }); // module: reporters/index.js + + require.register("reporters/json-cov.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base'); + + /** + * Expose `JSONCov`. + */ + + exports = module.exports = JSONCov; + + /** + * Initialize a new `JsCoverage` reporter. + * + * @param {Runner} runner + * @param {Boolean} output + * @api public + */ + + function JSONCov(runner, output) { + var self = this + , output = 1 == arguments.length ? true : output; + + Base.call(this, runner); + + var tests = [] + , failures = [] + , passes = []; + + runner.on('test end', function (test) { + tests.push(test); + }); + + runner.on('pass', function (test) { + passes.push(test); + }); + + runner.on('fail', function (test) { + failures.push(test); + }); + + runner.on('end', function () { + var cov = global._$jscoverage || {}; + var result = self.cov = map(cov); + result.stats = self.stats; + result.tests = tests.map(clean); + result.failures = failures.map(clean); + result.passes = passes.map(clean); + if (!output) return; + process.stdout.write(JSON.stringify(result, null, 2)); + }); + } + + /** + * Map jscoverage data to a JSON structure + * suitable for reporting. + * + * @param {Object} cov + * @return {Object} + * @api private + */ + + function map(cov) { + var ret = { + instrumentation: 'node-jscoverage' + , sloc: 0 + , hits: 0 + , misses: 0 + , coverage: 0 + , files: [] + }; + + for (var filename in cov) { + var data = coverage(filename, cov[filename]); + ret.files.push(data); + ret.hits += data.hits; + ret.misses += data.misses; + ret.sloc += data.sloc; + } + + ret.files.sort(function (a, b) { + return a.filename.localeCompare(b.filename); + }); + + if (ret.sloc > 0) { + ret.coverage = (ret.hits / ret.sloc) * 100; + } + + return ret; + }; + + /** + * Map jscoverage data for a single source file + * to a JSON structure suitable for reporting. + * + * @param {String} filename name of the source file + * @param {Object} data jscoverage coverage data + * @return {Object} + * @api private + */ + + function coverage(filename, data) { + var ret = { + filename: filename, + coverage: 0, + hits: 0, + misses: 0, + sloc: 0, + source: {} + }; + + data.source.forEach(function (line, num) { + num++; + + if (data[num] === 0) { + ret.misses++; + ret.sloc++; + } else if (data[num] !== undefined) { + ret.hits++; + ret.sloc++; + } + + ret.source[num] = { + source: line + , coverage: data[num] === undefined + ? '' + : data[num] + }; + }); + + ret.coverage = ret.hits / ret.sloc * 100; + + return ret; + } + + /** + * Return a plain-object representation of `test` + * free of cyclic properties etc. + * + * @param {Object} test + * @return {Object} + * @api private + */ + + function clean(test) { + return { + title: test.title + , fullTitle: test.fullTitle() + , duration: test.duration + } + } + + }); // module: reporters/json-cov.js + + require.register("reporters/json-stream.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , color = Base.color; + + /** + * Expose `List`. + */ + + exports = module.exports = List; + + /** + * Initialize a new `List` test reporter. + * + * @param {Runner} runner + * @api public + */ + + function List(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , total = runner.total; + + runner.on('start', function () { + console.log(JSON.stringify(['start', { total: total }])); + }); + + runner.on('pass', function (test) { + console.log(JSON.stringify(['pass', clean(test)])); + }); + + runner.on('fail', function (test, err) { + console.log(JSON.stringify(['fail', clean(test)])); + }); + + runner.on('end', function () { + process.stdout.write(JSON.stringify(['end', self.stats])); + }); + } + + /** + * Return a plain-object representation of `test` + * free of cyclic properties etc. + * + * @param {Object} test + * @return {Object} + * @api private + */ + + function clean(test) { + return { + title: test.title + , fullTitle: test.fullTitle() + , duration: test.duration + } + } + }); // module: reporters/json-stream.js + + require.register("reporters/json.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `JSON`. + */ + + exports = module.exports = JSONReporter; + + /** + * Initialize a new `JSON` reporter. + * + * @param {Runner} runner + * @api public + */ + + function JSONReporter(runner) { + var self = this; + Base.call(this, runner); + + var tests = [] + , failures = [] + , passes = []; + + runner.on('test end', function (test) { + tests.push(test); + }); + + runner.on('pass', function (test) { + passes.push(test); + }); + + runner.on('fail', function (test) { + failures.push(test); + }); + + runner.on('end', function () { + var obj = { + stats: self.stats + , tests: tests.map(clean) + , failures: failures.map(clean) + , passes: passes.map(clean) + }; + + process.stdout.write(JSON.stringify(obj, null, 2)); + }); + } + + /** + * Return a plain-object representation of `test` + * free of cyclic properties etc. + * + * @param {Object} test + * @return {Object} + * @api private + */ + + function clean(test) { + return { + title: test.title + , fullTitle: test.fullTitle() + , duration: test.duration + } + } + }); // module: reporters/json.js + + require.register("reporters/landing.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `Landing`. + */ + + exports = module.exports = Landing; + + /** + * Airplane color. + */ + + Base.colors.plane = 0; + + /** + * Airplane crash color. + */ + + Base.colors['plane crash'] = 31; + + /** + * Runway color. + */ + + Base.colors.runway = 90; + + /** + * Initialize a new `Landing` reporter. + * + * @param {Runner} runner + * @api public + */ + + function Landing(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , width = Base.window.width * .75 | 0 + , total = runner.total + , stream = process.stdout + , plane = color('plane', '✈') + , crashed = -1 + , n = 0; + + function runway() { + var buf = Array(width).join('-'); + return ' ' + color('runway', buf); + } + + runner.on('start', function () { + stream.write('\n '); + cursor.hide(); + }); + + runner.on('test end', function (test) { + // check if the plane crashed + var col = -1 == crashed + ? width * ++n / total | 0 + : crashed; + + // show the crash + if ('failed' == test.state) { + plane = color('plane crash', '✈'); + crashed = col; + } + + // render landing strip + stream.write('\u001b[4F\n\n'); + stream.write(runway()); + stream.write('\n '); + stream.write(color('runway', Array(col).join('⋅'))); + stream.write(plane) + stream.write(color('runway', Array(width - col).join('⋅') + '\n')); + stream.write(runway()); + stream.write('\u001b[0m'); + }); + + runner.on('end', function () { + cursor.show(); + console.log(); + self.epilogue(); + }); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + Landing.prototype = new F; + Landing.prototype.constructor = Landing; + + }); // module: reporters/landing.js + + require.register("reporters/list.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `List`. + */ + + exports = module.exports = List; + + /** + * Initialize a new `List` test reporter. + * + * @param {Runner} runner + * @api public + */ + + function List(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , n = 0; + + runner.on('start', function () { + console.log(); + }); + + runner.on('test', function (test) { + process.stdout.write(color('pass', ' ' + test.fullTitle() + ': ')); + }); + + runner.on('pending', function (test) { + var fmt = color('checkmark', ' -') + + color('pending', ' %s'); + console.log(fmt, test.fullTitle()); + }); + + runner.on('pass', function (test) { + var fmt = color('checkmark', ' ' + Base.symbols.dot) + + color('pass', ' %s: ') + + color(test.speed, '%dms'); + cursor.CR(); + console.log(fmt, test.fullTitle(), test.duration); + }); + + runner.on('fail', function (test, err) { + cursor.CR(); + console.log(color('fail', ' %d) %s'), ++n, test.fullTitle()); + }); + + runner.on('end', self.epilogue.bind(self)); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + List.prototype = new F; + List.prototype.constructor = List; + + + }); // module: reporters/list.js + + require.register("reporters/markdown.js", function (module, exports, require) { + /** + * Module dependencies. + */ + + var Base = require('./base') + , utils = require('../utils'); + + /** + * Expose `Markdown`. + */ + + exports = module.exports = Markdown; + + /** + * Initialize a new `Markdown` reporter. + * + * @param {Runner} runner + * @api public + */ + + function Markdown(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , level = 0 + , buf = ''; + + function title(str) { + return Array(level).join('#') + ' ' + str; + } + + function indent() { + return Array(level).join(' '); + } + + function mapTOC(suite, obj) { + var ret = obj; + obj = obj[suite.title] = obj[suite.title] || { suite: suite }; + suite.suites.forEach(function (suite) { + mapTOC(suite, obj); + }); + return ret; + } + + function stringifyTOC(obj, level) { + ++level; + var buf = ''; + var link; + for (var key in obj) { + if ('suite' == key) continue; + if (key) link = ' - [' + key + '](#' + utils.slug(obj[key].suite.fullTitle()) + ')\n'; + if (key) buf += Array(level).join(' ') + link; + buf += stringifyTOC(obj[key], level); + } + --level; + return buf; + } + + function generateTOC(suite) { + var obj = mapTOC(suite, {}); + return stringifyTOC(obj, 0); + } + + generateTOC(runner.suite); + + runner.on('suite', function (suite) { + ++level; + var slug = utils.slug(suite.fullTitle()); + buf += '' + '\n'; + buf += title(suite.title) + '\n'; + }); + + runner.on('suite end', function (suite) { + --level; + }); + + runner.on('pass', function (test) { + var code = utils.clean(test.fn.toString()); + buf += test.title + '.\n'; + buf += '\n```js\n'; + buf += code + '\n'; + buf += '```\n\n'; + }); + + runner.on('end', function () { + process.stdout.write('# TOC\n'); + process.stdout.write(generateTOC(runner.suite)); + process.stdout.write(buf); + }); + } + }); // module: reporters/markdown.js + + require.register("reporters/min.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base'); + + /** + * Expose `Min`. + */ + + exports = module.exports = Min; + + /** + * Initialize a new `Min` minimal test reporter (best used with --watch). + * + * @param {Runner} runner + * @api public + */ + + function Min(runner) { + Base.call(this, runner); + + runner.on('start', function () { + // clear screen + process.stdout.write('\u001b[2J'); + // set cursor position + process.stdout.write('\u001b[1;3H'); + }); + + runner.on('end', this.epilogue.bind(this)); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + Min.prototype = new F; + Min.prototype.constructor = Min; + + + }); // module: reporters/min.js + + require.register("reporters/nyan.js", function (module, exports, require) { + /** + * Module dependencies. + */ + + var Base = require('./base') + , color = Base.color; + + /** + * Expose `Dot`. + */ + + exports = module.exports = NyanCat; + + /** + * Initialize a new `Dot` matrix test reporter. + * + * @param {Runner} runner + * @api public + */ + + function NyanCat(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , width = Base.window.width * .75 | 0 + , rainbowColors = this.rainbowColors = self.generateColors() + , colorIndex = this.colorIndex = 0 + , numerOfLines = this.numberOfLines = 4 + , trajectories = this.trajectories = [[], [], [], []] + , nyanCatWidth = this.nyanCatWidth = 11 + , trajectoryWidthMax = this.trajectoryWidthMax = (width - nyanCatWidth) + , scoreboardWidth = this.scoreboardWidth = 5 + , tick = this.tick = 0 + , n = 0; + + runner.on('start', function () { + Base.cursor.hide(); + self.draw('start'); + }); + + runner.on('pending', function (test) { + self.draw('pending'); + }); + + runner.on('pass', function (test) { + self.draw('pass'); + }); + + runner.on('fail', function (test, err) { + self.draw('fail'); + }); + + runner.on('end', function () { + Base.cursor.show(); + for (var i = 0; i < self.numberOfLines; i++) write('\n'); + self.epilogue(); + }); + } + + /** + * Draw the nyan cat with runner `status`. + * + * @param {String} status + * @api private + */ + + NyanCat.prototype.draw = function (status) { + this.appendRainbow(); + this.drawScoreboard(); + this.drawRainbow(); + this.drawNyanCat(status); + this.tick = !this.tick; + }; + + /** + * Draw the "scoreboard" showing the number + * of passes, failures and pending tests. + * + * @api private + */ + + NyanCat.prototype.drawScoreboard = function () { + var stats = this.stats; + var colors = Base.colors; + + function draw(color, n) { + write(' '); + write('\u001b[' + color + 'm' + n + '\u001b[0m'); + write('\n'); + } + + draw(colors.green, stats.passes); + draw(colors.fail, stats.failures); + draw(colors.pending, stats.pending); + write('\n'); + + this.cursorUp(this.numberOfLines); + }; + + /** + * Append the rainbow. + * + * @api private + */ + + NyanCat.prototype.appendRainbow = function () { + var segment = this.tick ? '_' : '-'; + var rainbowified = this.rainbowify(segment); + + for (var index = 0; index < this.numberOfLines; index++) { + var trajectory = this.trajectories[index]; + if (trajectory.length >= this.trajectoryWidthMax) trajectory.shift(); + trajectory.push(rainbowified); + } + }; + + /** + * Draw the rainbow. + * + * @api private + */ + + NyanCat.prototype.drawRainbow = function () { + var self = this; + + this.trajectories.forEach(function (line, index) { + write('\u001b[' + self.scoreboardWidth + 'C'); + write(line.join('')); + write('\n'); + }); + + this.cursorUp(this.numberOfLines); + }; + + /** + * Draw the nyan cat with `status`. + * + * @param {String} status + * @api private + */ + + NyanCat.prototype.drawNyanCat = function (status) { + var self = this; + var startWidth = this.scoreboardWidth + this.trajectories[0].length; + var color = '\u001b[' + startWidth + 'C'; + var padding = ''; + + write(color); + write('_,------,'); + write('\n'); + + write(color); + padding = self.tick ? ' ' : ' '; + write('_|' + padding + '/\\_/\\ '); + write('\n'); + + write(color); + padding = self.tick ? '_' : '__'; + var tail = self.tick ? '~' : '^'; + var face; + switch (status) { + case 'pass': + face = '( ^ .^)'; + break; + case 'fail': + face = '( o .o)'; + break; + default: + face = '( - .-)'; + } + write(tail + '|' + padding + face + ' '); + write('\n'); + + write(color); + padding = self.tick ? ' ' : ' '; + write(padding + '"" "" '); + write('\n'); + + this.cursorUp(this.numberOfLines); + }; + + /** + * Move cursor up `n`. + * + * @param {Number} n + * @api private + */ + + NyanCat.prototype.cursorUp = function (n) { + write('\u001b[' + n + 'A'); + }; + + /** + * Move cursor down `n`. + * + * @param {Number} n + * @api private + */ + + NyanCat.prototype.cursorDown = function (n) { + write('\u001b[' + n + 'B'); + }; + + /** + * Generate rainbow colors. + * + * @return {Array} + * @api private + */ + + NyanCat.prototype.generateColors = function () { + var colors = []; + + for (var i = 0; i < (6 * 7); i++) { + var pi3 = Math.floor(Math.PI / 3); + var n = (i * (1.0 / 6)); + var r = Math.floor(3 * Math.sin(n) + 3); + var g = Math.floor(3 * Math.sin(n + 2 * pi3) + 3); + var b = Math.floor(3 * Math.sin(n + 4 * pi3) + 3); + colors.push(36 * r + 6 * g + b + 16); + } + + return colors; + }; + + /** + * Apply rainbow to the given `str`. + * + * @param {String} str + * @return {String} + * @api private + */ + + NyanCat.prototype.rainbowify = function (str) { + var color = this.rainbowColors[this.colorIndex % this.rainbowColors.length]; + this.colorIndex += 1; + return '\u001b[38;5;' + color + 'm' + str + '\u001b[0m'; + }; + + /** + * Stdout helper. + */ + + function write(string) { + process.stdout.write(string); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + NyanCat.prototype = new F; + NyanCat.prototype.constructor = NyanCat; + + + }); // module: reporters/nyan.js + + require.register("reporters/progress.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `Progress`. + */ + + exports = module.exports = Progress; + + /** + * General progress bar color. + */ + + Base.colors.progress = 90; + + /** + * Initialize a new `Progress` bar test reporter. + * + * @param {Runner} runner + * @param {Object} options + * @api public + */ + + function Progress(runner, options) { + Base.call(this, runner); + + var self = this + , options = options || {} + , stats = this.stats + , width = Base.window.width * .50 | 0 + , total = runner.total + , complete = 0 + , max = Math.max; + + // default chars + options.open = options.open || '['; + options.complete = options.complete || '▬'; + options.incomplete = options.incomplete || Base.symbols.dot; + options.close = options.close || ']'; + options.verbose = false; + + // tests started + runner.on('start', function () { + console.log(); + cursor.hide(); + }); + + // tests complete + runner.on('test end', function () { + complete++; + var incomplete = total - complete + , percent = complete / total + , n = width * percent | 0 + , i = width - n; + + cursor.CR(); + process.stdout.write('\u001b[J'); + process.stdout.write(color('progress', ' ' + options.open)); + process.stdout.write(Array(n).join(options.complete)); + process.stdout.write(Array(i).join(options.incomplete)); + process.stdout.write(color('progress', options.close)); + if (options.verbose) { + process.stdout.write(color('progress', ' ' + complete + ' of ' + total)); + } + }); + + // tests are complete, output some stats + // and the failures if any + runner.on('end', function () { + cursor.show(); + console.log(); + self.epilogue(); + }); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + Progress.prototype = new F; + Progress.prototype.constructor = Progress; + + + }); // module: reporters/progress.js + + require.register("reporters/spec.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `Spec`. + */ + + exports = module.exports = Spec; + + /** + * Initialize a new `Spec` test reporter. + * + * @param {Runner} runner + * @api public + */ + + function Spec(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , indents = 0 + , n = 0; + + function indent() { + return Array(indents).join(' ') + } + + runner.on('start', function () { + console.log(); + }); + + runner.on('suite', function (suite) { + ++indents; + console.log(color('suite', '%s%s'), indent(), suite.title); + }); + + runner.on('suite end', function (suite) { + --indents; + if (1 == indents) console.log(); + }); + + runner.on('test', function (test) { + process.stdout.write(indent() + color('pass', ' ◦ ' + test.title + ': ')); + }); + + runner.on('pending', function (test) { + var fmt = indent() + color('pending', ' - %s'); + console.log(fmt, test.title); + }); + + runner.on('pass', function (test) { + if ('fast' == test.speed) { + var fmt = indent() + + color('checkmark', ' ' + Base.symbols.ok) + + color('pass', ' %s '); + cursor.CR(); + console.log(fmt, test.title); + } else { + var fmt = indent() + + color('checkmark', ' ' + Base.symbols.ok) + + color('pass', ' %s ') + + color(test.speed, '(%dms)'); + cursor.CR(); + console.log(fmt, test.title, test.duration); + } + }); + + runner.on('fail', function (test, err) { + cursor.CR(); + console.log(indent() + color('fail', ' %d) %s'), ++n, test.title); + }); + + runner.on('end', self.epilogue.bind(self)); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + Spec.prototype = new F; + Spec.prototype.constructor = Spec; + + + }); // module: reporters/spec.js + + require.register("reporters/tap.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , cursor = Base.cursor + , color = Base.color; + + /** + * Expose `TAP`. + */ + + exports = module.exports = TAP; + + /** + * Initialize a new `TAP` reporter. + * + * @param {Runner} runner + * @api public + */ + + function TAP(runner) { + Base.call(this, runner); + + var self = this + , stats = this.stats + , n = 1 + , passes = 0 + , failures = 0; + + runner.on('start', function () { + var total = runner.grepTotal(runner.suite); + console.log('%d..%d', 1, total); + }); + + runner.on('test end', function () { + ++n; + }); + + runner.on('pending', function (test) { + console.log('ok %d %s # SKIP -', n, title(test)); + }); + + runner.on('pass', function (test) { + passes++; + console.log('ok %d %s', n, title(test)); + }); + + runner.on('fail', function (test, err) { + failures++; + console.log('not ok %d %s', n, title(test)); + if (err.stack) console.log(err.stack.replace(/^/gm, ' ')); + }); + + runner.on('end', function () { + console.log('# tests ' + (passes + failures)); + console.log('# pass ' + passes); + console.log('# fail ' + failures); + }); + } + + /** + * Return a TAP-safe title of `test` + * + * @param {Object} test + * @return {String} + * @api private + */ + + function title(test) { + return test.fullTitle().replace(/#/g, ''); + } + + }); // module: reporters/tap.js + + require.register("reporters/teamcity.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base'); + + /** + * Expose `Teamcity`. + */ + + exports = module.exports = Teamcity; + + /** + * Initialize a new `Teamcity` reporter. + * + * @param {Runner} runner + * @api public + */ + + function Teamcity(runner) { + Base.call(this, runner); + var stats = this.stats; + + runner.on('start', function () { + console.log("##teamcity[testSuiteStarted name='mocha.suite']"); + }); + + runner.on('test', function (test) { + console.log("##teamcity[testStarted name='" + escape(test.fullTitle()) + "']"); + }); + + runner.on('fail', function (test, err) { + console.log("##teamcity[testFailed name='" + escape(test.fullTitle()) + "' message='" + escape(err.message) + "']"); + }); + + runner.on('pending', function (test) { + console.log("##teamcity[testIgnored name='" + escape(test.fullTitle()) + "' message='pending']"); + }); + + runner.on('test end', function (test) { + console.log("##teamcity[testFinished name='" + escape(test.fullTitle()) + "' duration='" + test.duration + "']"); + }); + + runner.on('end', function () { + console.log("##teamcity[testSuiteFinished name='mocha.suite' duration='" + stats.duration + "']"); + }); + } + + /** + * Escape the given `str`. + */ + + function escape(str) { + return str + .replace(/\|/g, "||") + .replace(/\n/g, "|n") + .replace(/\r/g, "|r") + .replace(/\[/g, "|[") + .replace(/\]/g, "|]") + .replace(/\u0085/g, "|x") + .replace(/\u2028/g, "|l") + .replace(/\u2029/g, "|p") + .replace(/'/g, "|'"); + } + + }); // module: reporters/teamcity.js + + require.register("reporters/xunit.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Base = require('./base') + , utils = require('../utils') + , escape = utils.escape; + + /** + * Save timer references to avoid Sinon interfering (see GH-237). + */ + + var Date = global.Date + , setTimeout = global.setTimeout + , setInterval = global.setInterval + , clearTimeout = global.clearTimeout + , clearInterval = global.clearInterval; + + /** + * Expose `XUnit`. + */ + + exports = module.exports = XUnit; + + /** + * Initialize a new `XUnit` reporter. + * + * @param {Runner} runner + * @api public + */ + + function XUnit(runner) { + Base.call(this, runner); + var stats = this.stats + , tests = [] + , self = this; + + runner.on('pass', function (test) { + tests.push(test); + }); + + runner.on('fail', function (test) { + tests.push(test); + }); + + runner.on('end', function () { + console.log(tag('testsuite', { + name: 'Mocha Tests' + , tests: stats.tests + , failures: stats.failures + , errors: stats.failures + , skip: stats.tests - stats.failures - stats.passes + , timestamp: (new Date).toUTCString() + , time: stats.duration / 1000 + }, false)); + + tests.forEach(test); + console.log(''); + }); + } + + /** + * Inherit from `Base.prototype`. + */ + + function F() { }; + F.prototype = Base.prototype; + XUnit.prototype = new F; + XUnit.prototype.constructor = XUnit; + + + /** + * Output tag for the given `test.` + */ + + function test(test) { + var attrs = { + classname: test.parent.fullTitle() + , name: test.title + , time: test.duration / 1000 + }; + + if ('failed' == test.state) { + var err = test.err; + attrs.message = escape(err.message); + console.log(tag('testcase', attrs, false, tag('failure', attrs, false, cdata(err.stack)))); + } else if (test.pending) { + console.log(tag('testcase', attrs, false, tag('skipped', {}, true))); + } else { + console.log(tag('testcase', attrs, true)); + } + } + + /** + * HTML tag helper. + */ + + function tag(name, attrs, close, content) { + var end = close ? '/>' : '>' + , pairs = [] + , tag; + + for (var key in attrs) { + pairs.push(key + '="' + escape(attrs[key]) + '"'); + } + + tag = '<' + name + (pairs.length ? ' ' + pairs.join(' ') : '') + end; + if (content) tag += content + ''; + } + + }); // module: reporters/xunit.js + + require.register("runnable.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var EventEmitter = require('browser/events').EventEmitter + , debug = require('browser/debug')('mocha:runnable') + , milliseconds = require('./ms'); + + /** + * Save timer references to avoid Sinon interfering (see GH-237). + */ + + var Date = global.Date + , setTimeout = global.setTimeout + , setInterval = global.setInterval + , clearTimeout = global.clearTimeout + , clearInterval = global.clearInterval; + + /** + * Object#toString(). + */ + + var toString = Object.prototype.toString; + + /** + * Expose `Runnable`. + */ + + module.exports = Runnable; + + /** + * Initialize a new `Runnable` with the given `title` and callback `fn`. + * + * @param {String} title + * @param {Function} fn + * @api private + */ + + function Runnable(title, fn) { + this.title = title; + this.fn = fn; + this.async = fn && fn.length; + this.sync = !this.async; + this._timeout = 2000; + this._slow = 75; + this.timedOut = false; + } + + /** + * Inherit from `EventEmitter.prototype`. + */ + + function F() { }; + F.prototype = EventEmitter.prototype; + Runnable.prototype = new F; + Runnable.prototype.constructor = Runnable; + + + /** + * Set & get timeout `ms`. + * + * @param {Number|String} ms + * @return {Runnable|Number} ms or self + * @api private + */ + + Runnable.prototype.timeout = function (ms) { + if (0 == arguments.length) return this._timeout; + if ('string' == typeof ms) ms = milliseconds(ms); + debug('timeout %d', ms); + this._timeout = ms; + if (this.timer) this.resetTimeout(); + return this; + }; + + /** + * Set & get slow `ms`. + * + * @param {Number|String} ms + * @return {Runnable|Number} ms or self + * @api private + */ + + Runnable.prototype.slow = function (ms) { + if (0 === arguments.length) return this._slow; + if ('string' == typeof ms) ms = milliseconds(ms); + debug('timeout %d', ms); + this._slow = ms; + return this; + }; + + /** + * Return the full title generated by recursively + * concatenating the parent's full title. + * + * @return {String} + * @api public + */ + + Runnable.prototype.fullTitle = function () { + return this.parent.fullTitle() + ' ' + this.title; + }; + + /** + * Clear the timeout. + * + * @api private + */ + + Runnable.prototype.clearTimeout = function () { + clearTimeout(this.timer); + }; + + /** + * Inspect the runnable void of private properties. + * + * @return {String} + * @api private + */ + + Runnable.prototype.inspect = function () { + return JSON.stringify(this, function (key, val) { + if ('_' == key[0]) return; + if ('parent' == key) return '#'; + if ('ctx' == key) return '#'; + return val; + }, 2); + }; + + /** + * Reset the timeout. + * + * @api private + */ + + Runnable.prototype.resetTimeout = function () { + var self = this + , ms = this.timeout(); + + this.clearTimeout(); + if (ms) { + this.timer = setTimeout(function () { + self.callback(new Error('timeout of ' + ms + 'ms exceeded')); + self.timedOut = true; + }, ms); + } + }; + + /** + * Run the test and invoke `fn(err)`. + * + * @param {Function} fn + * @api private + */ + + Runnable.prototype.run = function (fn) { + var self = this + , ms = this.timeout() + , start = new Date + , ctx = this.ctx + , finished + , emitted; + + if (ctx) ctx.runnable(this); + + // timeout + if (this.async) { + if (ms) { + this.timer = setTimeout(function () { + done(new Error('timeout of ' + ms + 'ms exceeded')); + self.timedOut = true; + }, ms); + } + } + + // called multiple times + function multiple(err) { + if (emitted) return; + emitted = true; + self.emit('error', err || new Error('done() called multiple times')); + } + + // finished + function done(err) { + if (self.timedOut) return; + if (finished) return multiple(err); + self.clearTimeout(); + self.duration = new Date - start; + finished = true; + fn(err); + } + + // for .resetTimeout() + this.callback = done; + + // async + if (this.async) { + try { + this.fn.call(ctx, function (err) { + if (err instanceof Error || toString.call(err) === "[object Error]") return done(err); + if (null != err) return done(new Error('done() invoked with non-Error: ' + err)); + done(); + }); + } catch (err) { + done(err); + } + return; + } + + if (this.asyncOnly) { + return done(new Error('--async-only option in use without declaring `done()`')); + } + + // sync + try { + if (!this.pending) this.fn.call(ctx); + this.duration = new Date - start; + fn(); + } catch (err) { + fn(err); + } + }; + + }); // module: runnable.js + + require.register("runner.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var EventEmitter = require('browser/events').EventEmitter + , debug = require('browser/debug')('mocha:runner') + , Test = require('./test') + , utils = require('./utils') + , filter = utils.filter + , keys = utils.keys; + + /** + * Non-enumerable globals. + */ + + var globals = [ + 'setTimeout', + 'clearTimeout', + 'setInterval', + 'clearInterval', + 'XMLHttpRequest', + 'Date' + ]; + + /** + * Expose `Runner`. + */ + + module.exports = Runner; + + /** + * Initialize a `Runner` for the given `suite`. + * + * Events: + * + * - `start` execution started + * - `end` execution complete + * - `suite` (suite) test suite execution started + * - `suite end` (suite) all tests (and sub-suites) have finished + * - `test` (test) test execution started + * - `test end` (test) test completed + * - `hook` (hook) hook execution started + * - `hook end` (hook) hook complete + * - `pass` (test) test passed + * - `fail` (test, err) test failed + * + * @api public + */ + + function Runner(suite) { + var self = this; + this._globals = []; + this.suite = suite; + this.total = suite.total(); + this.failures = 0; + this.on('test end', function (test) { self.checkGlobals(test); }); + this.on('hook end', function (hook) { self.checkGlobals(hook); }); + this.grep(/.*/); + this.globals(this.globalProps().concat(['errno'])); + } + + /** + * Wrapper for setImmediate, process.nextTick, or browser polyfill. + * + * @param {Function} fn + * @api private + */ + + Runner.immediately = global.setImmediate || process.nextTick; + + /** + * Inherit from `EventEmitter.prototype`. + */ + + function F() { }; + F.prototype = EventEmitter.prototype; + Runner.prototype = new F; + Runner.prototype.constructor = Runner; + + + /** + * Run tests with full titles matching `re`. Updates runner.total + * with number of tests matched. + * + * @param {RegExp} re + * @param {Boolean} invert + * @return {Runner} for chaining + * @api public + */ + + Runner.prototype.grep = function (re, invert) { + debug('grep %s', re); + this._grep = re; + this._invert = invert; + this.total = this.grepTotal(this.suite); + return this; + }; + + /** + * Returns the number of tests matching the grep search for the + * given suite. + * + * @param {Suite} suite + * @return {Number} + * @api public + */ + + Runner.prototype.grepTotal = function (suite) { + var self = this; + var total = 0; + + suite.eachTest(function (test) { + var match = self._grep.test(test.fullTitle()); + if (self._invert) match = !match; + if (match) total++; + }); + + return total; + }; + + /** + * Return a list of global properties. + * + * @return {Array} + * @api private + */ + + Runner.prototype.globalProps = function () { + var props = utils.keys(global); + + // non-enumerables + for (var i = 0; i < globals.length; ++i) { + if (~utils.indexOf(props, globals[i])) continue; + props.push(globals[i]); + } + + return props; + }; + + /** + * Allow the given `arr` of globals. + * + * @param {Array} arr + * @return {Runner} for chaining + * @api public + */ + + Runner.prototype.globals = function (arr) { + if (0 == arguments.length) return this._globals; + debug('globals %j', arr); + utils.forEach(arr, function (arr) { + this._globals.push(arr); + }, this); + return this; + }; + + /** + * Check for global variable leaks. + * + * @api private + */ + + Runner.prototype.checkGlobals = function (test) { + if (this.ignoreLeaks) return; + var ok = this._globals; + var globals = this.globalProps(); + var isNode = process.kill; + var leaks; + + // check length - 2 ('errno' and 'location' globals) + if (isNode && 1 == ok.length - globals.length) return + else if (2 == ok.length - globals.length) return; + + leaks = filterLeaks(ok, globals); + this._globals = this._globals.concat(leaks); + + if (leaks.length > 1) { + this.fail(test, new Error('global leaks detected: ' + leaks.join(', ') + '')); + } else if (leaks.length) { + this.fail(test, new Error('global leak detected: ' + leaks[0])); + } + }; + + /** + * Fail the given `test`. + * + * @param {Test} test + * @param {Error} err + * @api private + */ + + Runner.prototype.fail = function (test, err) { + ++this.failures; + test.state = 'failed'; + + if ('string' == typeof err) { + err = new Error('the string "' + err + '" was thrown, throw an Error :)'); + } + + this.emit('fail', test, err); + }; + + /** + * Fail the given `hook` with `err`. + * + * Hook failures (currently) hard-end due + * to that fact that a failing hook will + * surely cause subsequent tests to fail, + * causing jumbled reporting. + * + * @param {Hook} hook + * @param {Error} err + * @api private + */ + + Runner.prototype.failHook = function (hook, err) { + this.fail(hook, err); + this.emit('end'); + }; + + /** + * Run hook `name` callbacks and then invoke `fn()`. + * + * @param {String} name + * @param {Function} function + * @api private + */ + + Runner.prototype.hook = function (name, fn) { + var suite = this.suite + , hooks = suite['_' + name] + , self = this + , timer; + + function next(i) { + var hook = hooks[i]; + if (!hook) return fn(); + self.currentRunnable = hook; + + self.emit('hook', hook); + + hook.on('error', function (err) { + self.failHook(hook, err); + }); + + hook.run(function (err) { + hook.removeAllListeners('error'); + var testError = hook.error(); + if (testError) self.fail(self.test, testError); + if (err) return self.failHook(hook, err); + self.emit('hook end', hook); + next(++i); + }); + } + + Runner.immediately(function () { + next(0); + }); + }; + + /** + * Run hook `name` for the given array of `suites` + * in order, and callback `fn(err)`. + * + * @param {String} name + * @param {Array} suites + * @param {Function} fn + * @api private + */ + + Runner.prototype.hooks = function (name, suites, fn) { + var self = this + , orig = this.suite; + + function next(suite) { + self.suite = suite; + + if (!suite) { + self.suite = orig; + return fn(); + } + + self.hook(name, function (err) { + if (err) { + self.suite = orig; + return fn(err); + } + + next(suites.pop()); + }); + } + + next(suites.pop()); + }; + + /** + * Run hooks from the top level down. + * + * @param {String} name + * @param {Function} fn + * @api private + */ + + Runner.prototype.hookUp = function (name, fn) { + var suites = [this.suite].concat(this.parents()).reverse(); + this.hooks(name, suites, fn); + }; + + /** + * Run hooks from the bottom up. + * + * @param {String} name + * @param {Function} fn + * @api private + */ + + Runner.prototype.hookDown = function (name, fn) { + var suites = [this.suite].concat(this.parents()); + this.hooks(name, suites, fn); + }; + + /** + * Return an array of parent Suites from + * closest to furthest. + * + * @return {Array} + * @api private + */ + + Runner.prototype.parents = function () { + var suite = this.suite + , suites = []; + while (suite = suite.parent) suites.push(suite); + return suites; + }; + + /** + * Run the current test and callback `fn(err)`. + * + * @param {Function} fn + * @api private + */ + + Runner.prototype.runTest = function (fn) { + var test = this.test + , self = this; + + if (this.asyncOnly) test.asyncOnly = true; + + try { + test.on('error', function (err) { + self.fail(test, err); + }); + test.run(fn); + } catch (err) { + fn(err); + } + }; + + /** + * Run tests in the given `suite` and invoke + * the callback `fn()` when complete. + * + * @param {Suite} suite + * @param {Function} fn + * @api private + */ + + Runner.prototype.runTests = function (suite, fn) { + var self = this + , tests = suite.tests.slice() + , test; + + function next(err) { + // if we bail after first err + if (self.failures && suite._bail) return fn(); + + // next test + test = tests.shift(); + + // all done + if (!test) return fn(); + + // grep + var match = self._grep.test(test.fullTitle()); + if (self._invert) match = !match; + if (!match) return next(); + + // pending + if (test.pending) { + self.emit('pending', test); + self.emit('test end', test); + return next(); + } + + // execute test and hook(s) + self.emit('test', self.test = test); + self.hookDown('beforeEach', function () { + self.currentRunnable = self.test; + self.runTest(function (err) { + test = self.test; + + if (err) { + self.fail(test, err); + self.emit('test end', test); + return self.hookUp('afterEach', next); + } + + test.state = 'passed'; + self.emit('pass', test); + self.emit('test end', test); + self.hookUp('afterEach', next); + }); + }); + } + + this.next = next; + next(); + }; + + /** + * Run the given `suite` and invoke the + * callback `fn()` when complete. + * + * @param {Suite} suite + * @param {Function} fn + * @api private + */ + + Runner.prototype.runSuite = function (suite, fn) { + var total = this.grepTotal(suite) + , self = this + , i = 0; + + debug('run suite %s', suite.fullTitle()); + + if (!total) return fn(); + + this.emit('suite', this.suite = suite); + + function next() { + var curr = suite.suites[i++]; + if (!curr) return done(); + self.runSuite(curr, next); + } + + function done() { + self.suite = suite; + self.hook('afterAll', function () { + self.emit('suite end', suite); + fn(); + }); + } + + this.hook('beforeAll', function () { + self.runTests(suite, next); + }); + }; + + /** + * Handle uncaught exceptions. + * + * @param {Error} err + * @api private + */ + + Runner.prototype.uncaught = function (err) { + debug('uncaught exception %s', err.message); + var runnable = this.currentRunnable; + if (!runnable || 'failed' == runnable.state) return; + runnable.clearTimeout(); + err.uncaught = true; + this.fail(runnable, err); + + // recover from test + if ('test' == runnable.type) { + this.emit('test end', runnable); + this.hookUp('afterEach', this.next); + return; + } + + // bail on hooks + this.emit('end'); + }; + + /** + * Run the root suite and invoke `fn(failures)` + * on completion. + * + * @param {Function} fn + * @return {Runner} for chaining + * @api public + */ + + Runner.prototype.run = function (fn) { + var self = this + , fn = fn || function () { }; + + function uncaught(err) { + self.uncaught(err); + } + + debug('start'); + + // callback + this.on('end', function () { + debug('end'); + process.removeListener('uncaughtException', uncaught); + fn(self.failures); + }); + + // run suites + this.emit('start'); + this.runSuite(this.suite, function () { + debug('finished running'); + self.emit('end'); + }); + + // uncaught exception + process.on('uncaughtException', uncaught); + + return this; + }; + + /** + * Filter leaks with the given globals flagged as `ok`. + * + * @param {Array} ok + * @param {Array} globals + * @return {Array} + * @api private + */ + + function filterLeaks(ok, globals) { + return filter(globals, function (key) { + var matched = filter(ok, function (ok) { + if (~ok.indexOf('*')) return 0 == key.indexOf(ok.split('*')[0]); + // Opera and IE expose global variables for HTML element IDs (issue #243) + if (/^mocha-/.test(key)) return true; + return key == ok; + }); + return matched.length == 0 && (!global.navigator || 'onerror' !== key); + }); + } + + }); // module: runner.js + + require.register("suite.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var EventEmitter = require('browser/events').EventEmitter + , debug = require('browser/debug')('mocha:suite') + , milliseconds = require('./ms') + , utils = require('./utils') + , Hook = require('./hook'); + + /** + * Expose `Suite`. + */ + + exports = module.exports = Suite; + + /** + * Create a new `Suite` with the given `title` + * and parent `Suite`. When a suite with the + * same title is already present, that suite + * is returned to provide nicer reporter + * and more flexible meta-testing. + * + * @param {Suite} parent + * @param {String} title + * @return {Suite} + * @api public + */ + + exports.create = function (parent, title) { + var suite = new Suite(title, parent.ctx); + suite.parent = parent; + if (parent.pending) suite.pending = true; + title = suite.fullTitle(); + parent.addSuite(suite); + return suite; + }; + + /** + * Initialize a new `Suite` with the given + * `title` and `ctx`. + * + * @param {String} title + * @param {Context} ctx + * @api private + */ + + function Suite(title, ctx) { + this.title = title; + this.ctx = ctx; + this.suites = []; + this.tests = []; + this.pending = false; + this._beforeEach = []; + this._beforeAll = []; + this._afterEach = []; + this._afterAll = []; + this.root = !title; + this._timeout = 2000; + this._slow = 75; + this._bail = false; + } + + /** + * Inherit from `EventEmitter.prototype`. + */ + + function F() { }; + F.prototype = EventEmitter.prototype; + Suite.prototype = new F; + Suite.prototype.constructor = Suite; + + + /** + * Return a clone of this `Suite`. + * + * @return {Suite} + * @api private + */ + + Suite.prototype.clone = function () { + var suite = new Suite(this.title); + debug('clone'); + suite.ctx = this.ctx; + suite.timeout(this.timeout()); + suite.slow(this.slow()); + suite.bail(this.bail()); + return suite; + }; + + /** + * Set timeout `ms` or short-hand such as "2s". + * + * @param {Number|String} ms + * @return {Suite|Number} for chaining + * @api private + */ + + Suite.prototype.timeout = function (ms) { + if (0 == arguments.length) return this._timeout; + if ('string' == typeof ms) ms = milliseconds(ms); + debug('timeout %d', ms); + this._timeout = parseInt(ms, 10); + return this; + }; + + /** + * Set slow `ms` or short-hand such as "2s". + * + * @param {Number|String} ms + * @return {Suite|Number} for chaining + * @api private + */ + + Suite.prototype.slow = function (ms) { + if (0 === arguments.length) return this._slow; + if ('string' == typeof ms) ms = milliseconds(ms); + debug('slow %d', ms); + this._slow = ms; + return this; + }; + + /** + * Sets whether to bail after first error. + * + * @parma {Boolean} bail + * @return {Suite|Number} for chaining + * @api private + */ + + Suite.prototype.bail = function (bail) { + if (0 == arguments.length) return this._bail; + debug('bail %s', bail); + this._bail = bail; + return this; + }; + + /** + * Run `fn(test[, done])` before running tests. + * + * @param {Function} fn + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.beforeAll = function (fn) { + if (this.pending) return this; + var hook = new Hook('"before all" hook', fn); + hook.parent = this; + hook.timeout(this.timeout()); + hook.slow(this.slow()); + hook.ctx = this.ctx; + this._beforeAll.push(hook); + this.emit('beforeAll', hook); + return this; + }; + + /** + * Run `fn(test[, done])` after running tests. + * + * @param {Function} fn + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.afterAll = function (fn) { + if (this.pending) return this; + var hook = new Hook('"after all" hook', fn); + hook.parent = this; + hook.timeout(this.timeout()); + hook.slow(this.slow()); + hook.ctx = this.ctx; + this._afterAll.push(hook); + this.emit('afterAll', hook); + return this; + }; + + /** + * Run `fn(test[, done])` before each test case. + * + * @param {Function} fn + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.beforeEach = function (fn) { + if (this.pending) return this; + var hook = new Hook('"before each" hook', fn); + hook.parent = this; + hook.timeout(this.timeout()); + hook.slow(this.slow()); + hook.ctx = this.ctx; + this._beforeEach.push(hook); + this.emit('beforeEach', hook); + return this; + }; + + /** + * Run `fn(test[, done])` after each test case. + * + * @param {Function} fn + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.afterEach = function (fn) { + if (this.pending) return this; + var hook = new Hook('"after each" hook', fn); + hook.parent = this; + hook.timeout(this.timeout()); + hook.slow(this.slow()); + hook.ctx = this.ctx; + this._afterEach.push(hook); + this.emit('afterEach', hook); + return this; + }; + + /** + * Add a test `suite`. + * + * @param {Suite} suite + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.addSuite = function (suite) { + suite.parent = this; + suite.timeout(this.timeout()); + suite.slow(this.slow()); + suite.bail(this.bail()); + this.suites.push(suite); + this.emit('suite', suite); + return this; + }; + + /** + * Add a `test` to this suite. + * + * @param {Test} test + * @return {Suite} for chaining + * @api private + */ + + Suite.prototype.addTest = function (test) { + test.parent = this; + test.timeout(this.timeout()); + test.slow(this.slow()); + test.ctx = this.ctx; + this.tests.push(test); + this.emit('test', test); + return this; + }; + + /** + * Return the full title generated by recursively + * concatenating the parent's full title. + * + * @return {String} + * @api public + */ + + Suite.prototype.fullTitle = function () { + if (this.parent) { + var full = this.parent.fullTitle(); + if (full) return full + ' ' + this.title; + } + return this.title; + }; + + /** + * Return the total number of tests. + * + * @return {Number} + * @api public + */ + + Suite.prototype.total = function () { + return utils.reduce(this.suites, function (sum, suite) { + return sum + suite.total(); + }, 0) + this.tests.length; + }; + + /** + * Iterates through each suite recursively to find + * all tests. Applies a function in the format + * `fn(test)`. + * + * @param {Function} fn + * @return {Suite} + * @api private + */ + + Suite.prototype.eachTest = function (fn) { + utils.forEach(this.tests, fn); + utils.forEach(this.suites, function (suite) { + suite.eachTest(fn); + }); + return this; + }; + + }); // module: suite.js + + require.register("test.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var Runnable = require('./runnable'); + + /** + * Expose `Test`. + */ + + module.exports = Test; + + /** + * Initialize a new `Test` with the given `title` and callback `fn`. + * + * @param {String} title + * @param {Function} fn + * @api private + */ + + function Test(title, fn) { + Runnable.call(this, title, fn); + this.pending = !fn; + this.type = 'test'; + } + + /** + * Inherit from `Runnable.prototype`. + */ + + function F() { }; + F.prototype = Runnable.prototype; + Test.prototype = new F; + Test.prototype.constructor = Test; + + + }); // module: test.js + + require.register("utils.js", function (module, exports, require) { + + /** + * Module dependencies. + */ + + var fs = require('browser/fs') + , path = require('browser/path') + , join = path.join + , debug = require('browser/debug')('mocha:watch'); + + /** + * Ignored directories. + */ + + var ignore = ['node_modules', '.git']; + + /** + * Escape special characters in the given string of html. + * + * @param {String} html + * @return {String} + * @api private + */ + + exports.escape = function (html) { + return String(html) + .replace(/&/g, '&') + .replace(/"/g, '"') + .replace(//g, '>'); + }; + + /** + * Array#forEach (<=IE8) + * + * @param {Array} array + * @param {Function} fn + * @param {Object} scope + * @api private + */ + + exports.forEach = function (arr, fn, scope) { + for (var i = 0, l = arr.length; i < l; i++) + fn.call(scope, arr[i], i); + }; + + /** + * Array#indexOf (<=IE8) + * + * @parma {Array} arr + * @param {Object} obj to find index of + * @param {Number} start + * @api private + */ + + exports.indexOf = function (arr, obj, start) { + for (var i = start || 0, l = arr.length; i < l; i++) { + if (arr[i] === obj) + return i; + } + return -1; + }; + + /** + * Array#reduce (<=IE8) + * + * @param {Array} array + * @param {Function} fn + * @param {Object} initial value + * @api private + */ + + exports.reduce = function (arr, fn, val) { + var rval = val; + + for (var i = 0, l = arr.length; i < l; i++) { + rval = fn(rval, arr[i], i, arr); + } + + return rval; + }; + + /** + * Array#filter (<=IE8) + * + * @param {Array} array + * @param {Function} fn + * @api private + */ + + exports.filter = function (arr, fn) { + var ret = []; + + for (var i = 0, l = arr.length; i < l; i++) { + var val = arr[i]; + if (fn(val, i, arr)) ret.push(val); + } + + return ret; + }; + + /** + * Object.keys (<=IE8) + * + * @param {Object} obj + * @return {Array} keys + * @api private + */ + + exports.keys = Object.keys || function (obj) { + var keys = [] + , has = Object.prototype.hasOwnProperty // for `window` on <=IE8 + + for (var key in obj) { + if (has.call(obj, key)) { + keys.push(key); + } + } + + return keys; + }; + + /** + * Watch the given `files` for changes + * and invoke `fn(file)` on modification. + * + * @param {Array} files + * @param {Function} fn + * @api private + */ + + exports.watch = function (files, fn) { + var options = { interval: 100 }; + files.forEach(function (file) { + debug('file %s', file); + fs.watchFile(file, options, function (curr, prev) { + if (prev.mtime < curr.mtime) fn(file); + }); + }); + }; + + /** + * Ignored files. + */ + + function ignored(path) { + return !~ignore.indexOf(path); + } + + /** + * Lookup files in the given `dir`. + * + * @return {Array} + * @api private + */ + + exports.files = function (dir, ret) { + ret = ret || []; + + fs.readdirSync(dir) + .filter(ignored) + .forEach(function (path) { + path = join(dir, path); + if (fs.statSync(path).isDirectory()) { + exports.files(path, ret); + } else if (path.match(/\.(js|coffee)$/)) { + ret.push(path); + } + }); + + return ret; + }; + + /** + * Compute a slug from the given `str`. + * + * @param {String} str + * @return {String} + * @api private + */ + + exports.slug = function (str) { + return str + .toLowerCase() + .replace(/ +/g, '-') + .replace(/[^-\w]/g, ''); + }; + + /** + * Strip the function definition from `str`, + * and re-indent for pre whitespace. + */ + + exports.clean = function (str) { + str = str + .replace(/^function *$.*$ *{/, '') + .replace(/\s+\}$/, ''); + + var spaces = str.match(/^\n?( *)/)[1].length + , re = new RegExp('^ {' + spaces + '}', 'gm'); + + str = str.replace(re, ''); + + return exports.trim(str); + }; + + /** + * Escape regular expression characters in `str`. + * + * @param {String} str + * @return {String} + * @api private + */ + + exports.escapeRegexp = function (str) { + return str.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&"); + }; + + /** + * Trim the given `str`. + * + * @param {String} str + * @return {String} + * @api private + */ + + exports.trim = function (str) { + return str.replace(/^\s+|\s+$/g, ''); + }; + + /** + * Parse the given `qs`. + * + * @param {String} qs + * @return {Object} + * @api private + */ + + exports.parseQuery = function (qs) { + return exports.reduce(qs.replace('?', '').split('&'), function (obj, pair) { + var i = pair.indexOf('=') + , key = pair.slice(0, i) + , val = pair.slice(++i); + + obj[key] = decodeURIComponent(val); + return obj; + }, {}); + }; + + /** + * Highlight the given string of `js`. + * + * @param {String} js + * @return {String} + * @api private + */ + + function highlight(js) { + return js + .replace(//g, '>') + .replace(/\/\/(.*)/gm, '//$1') + .replace(/('.*?')/gm, '$1') + .replace(/(\d+\.\d+)/gm, '$1') + .replace(/(\d+)/gm, '$1') + .replace(/\bnew *(\w+)/gm, 'new $1') + .replace(/\b(function|new|throw|return|var|if|else)\b/gm, '$1') + } + + /** + * Highlight the contents of tag `name`. + * + * @param {String} name + * @api private + */ + + exports.highlightTags = function (name) { + var code = document.getElementsByTagName(name); + for (var i = 0, len = code.length; i < len; ++i) { + code[i].innerHTML = highlight(code[i].innerHTML); + } + }; + + }); // module: utils.js + /** + * Node shims. + * + * These are meant only to allow + * mocha.js to run untouched, not + * to allow running node code in + * the browser. + */ + + process = {}; + process.exit = function (status) { }; + process.stdout = {}; + global = window; + + /** + * Remove uncaughtException listener. + */ + + process.removeListener = function (e) { + if ('uncaughtException' == e) { + window.onerror = null; + } + }; + + /** + * Implements uncaughtException listener. + */ + + process.on = function (e, fn) { + if ('uncaughtException' == e) { + window.onerror = function (err, url, line) { + fn(new Error(err + ' (' + url + ':' + line + ')')); + }; + } + }; + + // boot + ; (function () { + + /** + * Expose mocha. + */ + + var Mocha = window.Mocha = require('mocha'), + mocha = window.mocha = new Mocha({ reporter: 'html' }); + + var immediateQueue = [] + , immediateTimeout; + + function timeslice() { + var immediateStart = new Date().getTime(); + while (immediateQueue.length && (new Date().getTime() - immediateStart) < 100) { + immediateQueue.shift()(); + } + if (immediateQueue.length) { + immediateTimeout = setTimeout(timeslice, 0); + } else { + immediateTimeout = null; + } + } + + /** + * High-performance override of Runner.immediately. + */ + + Mocha.Runner.immediately = function (callback) { + immediateQueue.push(callback); + if (!immediateTimeout) { + immediateTimeout = setTimeout(timeslice, 0); + } + }; + + /** + * Override ui to ensure that the ui functions are initialized. + * Normally this would happen in Mocha.prototype.loadFiles. + */ + + mocha.ui = function (ui) { + Mocha.prototype.ui.call(this, ui); + this.suite.emit('pre-require', window, null, this); + return this; + }; + + /** + * Setup mocha with the given setting options. + */ + + mocha.setup = function (opts) { + if ('string' == typeof opts) opts = { ui: opts }; + for (var opt in opts) this[opt](opts[opt]); + return this; + }; + + /** + * Run mocha, returning the Runner. + */ + + mocha.run = function (fn) { + var options = mocha.options; + mocha.globals('location'); + + var query = Mocha.utils.parseQuery(window.location.search || ''); + if (query.grep) mocha.grep(query.grep); + if (query.invert) mocha.invert(); + + return Mocha.prototype.run.call(mocha, function () { + Mocha.utils.highlightTags('code'); + if (fn) fn(); + }); + }; + })(); +})(); \ No newline at end of file diff --git a/3-higher-order-functions/README.md b/3-higher-order-functions/README.md index acd683f..4168c99 100644 --- a/3-higher-order-functions/README.md +++ b/3-higher-order-functions/README.md @@ -1,259 +1,3 @@ -# Part III: Higher-Order Functions +# Part III: Higher-Order Functions (Solutions) -*Note: Before getting started on these exercises, please be certain that you've read through the root [README.md](../README.md) file in this repository.* - -In order to complete these exercises, open [repl.it](https://repl.it/), choose JavaScript, and then write your code in the left-hand panel. You can run your code using the "Run" button. - -### Two Forms of Functions - -```js -// function declaration -function square(x) { - return x * x; -} - -// function expression -var square = function(x) { - return x * x; -}; -``` - -## Exercises - -### Basic Requirements - -#### Rewrite Functions - -1. We have two ways of writing a function. The **function declaration** is what we've - used so far, and the **function expression** is new to us. Rewrite the following - *function declarations* using a *function expression*: - - ```js - // 1. - function cube(x) { - return x * x * x; - } - // 2. - function fullname(first, last) { - return first + " " + last; - } - // 3. - function power(base, exp) { - if (exp === 0) { - return 1; - } - return base * power(base, exp - 1); - } - // 4. - function sumCubes(numbers) { - var total = 0; - for (var i = 0; i < numbers.length; i++) { - total = total + cube(numbers[i]); - } - return total; - } - ``` - -#### Iterating Over Arrays Using `each` - -1. Write `each` as seen below in your code editor. - - ```js - function each(array, func) { - for (var i = 0; i < array.length; i++) { - func(array[i]); - } - } - ``` - -2. Finish the implementation of `sumSquares` below (using above `each` function): - - ```js - function sumSquares(numbers) { - var total = 0; - // ... - return total; - } - ``` - -3. Rewrite `sumCubes` using `each`: - - ```js - function sumCubes(numbers) { - var total = 0; - for (var i = 0; i < numbers.length; i++) { - total = total + cube(numbers[i]); - } - return total; - } - ``` - -3. Write a function called `product` that calculates the product of an array of - numbers using a `for` loop; then, refactor it to use `each`. - -4. Write a function called `cubeAll` that cubes each number in an array, and - returns an array of all the numbers *cubed* using a `for` loop; then, - refactor it to use `each`. - -5. Write a function called `odds` that accepts an array as a parameter and - returns an array of just the odd numbers. If you wrote it using `each`, - great! If you used anything else, refactor it to use a `for` loop. - -### More Practice - -#### Summations - -1. Write a function `sumByAllElementsMultipliedByFour` that takes an array as an - argument and returns the sum of all elements multiplied by four. - -2. Observe that `sumByAllElementsMultipliedByFour` is a terrible name for a - function – you should also notice that `sumByAllElementsMultipliedByFour` - looks a lot like `sumCubes` and `sumSquares`. - - Write a function `sumBy` that accepts two arguments: an array of numbers and - a *function*. The function will be invoked upon each element in the array, - and its result will be used to compute the sum. - - ```js - function sumBy(numbers, f) { - // ... - } - var numbers = [1, 2, 3, 4]; - sumBy(numbers, square); // => 30 - sumBy(numbers, cube); // => 100 - sumBy(numbers, function(number) { - return number * 4; - }); - // => 40 - ``` - -3. How can you use `sumBy` to compute the sum of an array of - numbers (just the plain sum)? - -4. Write a function `productBy` that works like `sumBy`, but for **products**. - -#### Refactoring - -*If you've attended prior lessons:* As an extended exercise, run back through your code from the past lessons and look for opportunities to refactor your use of `for` loops using -`each`, `map` and `filter`. - -### Advanced - -#### Finding Patterns: Mapping - -1. Write a function `doubleAll` that takes an array of numbers as a parameter - and returns an array of all of those numbers *doubled*: - - ```js - function doubleAll(numbers) { - // ... - } - doubleAll([1, 3, 10, 4, 7]); // => [2, 6, 20, 8, 14] - ``` - -2. Write a function `halveAll` that takes an array of numbers as a parameter and - returns an array of all of those numbers *halved* (divided by two). - -3. Write a function `uppercaseAll` that takes an array of **strings** as a - parameter, and returns an array of all of those strings, but transformed to - *upper case*. You can use `toUpperCase` to convert a string to upper case. - - ```js - "hello, world".toUpperCase(); // => "HELLO, WORLD" - ``` - - -4. You should at this point notice a similarity between all of the above - functions, as well as the `cubeAll` function from the warmup. These functions - all define what we call **mappings**; that is, they *map* from one value to - another. - - ```js - // doubleAll maps from an array of numbers to an array of doubled numbers - // [1, 2, 3, 4] => [2, 4, 6, 8] - - // halveAll maps from an array of numbers to an array of halved numbers - // [1, 2, 3, 4] => [0.5, 1, 1.5, 2] - ``` - -5. Write a function `map` that takes two parameters: an array and a *function* - that, when applied to a single element, produces a new element. `map` should - return an *array* of all elements in the input array transformed using the - input function. Your function should work like this: - - ```js - function map(array, f) { - // ... - } - map([1, 2, 3, 4], function(x) { - return x * 2; - }); - // => [2, 4, 6, 8] - ``` - -6. Complete the invocations of `map` below to produce the desired output (you'll - need to replace `???` with a function): - - ```js - map(["hello", "world"], ???); // => ["HELLO", "WORLD"] - map(["HelLo", "WorLD"], ???); // => ["hello", "world"] - map(["the", "quick", "brown", "fox", "jumped"], ???); // => [3, 5, 5, 3, 6] - var people = [ - {name: "Alyssa P. Hacker", age: 26}, - {name: "Ben Bitdiddle", age: 34}, - {name: "Eva Lu Ator", age: 19}, - {name: "Lem E. Tweakit", age: 40} - ]; - map(people, ???); // => ["Alyssa P. Hacker", "Ben Bitdiddle", "Eva Lu Ator", "Lem E. Tweakit"] - map(people, ???); - // => ["Alyssa P. Hacker is 26", "Ben Bitdiddle is 34", "Eva Lu Ator is 19", "Lem E. Tweakit is 40"] - ``` - -#### Finding Patterns: Filtering - -1. Write a function called `evens` that takes an array of **numbers** as a - parameter, and returns **an array of only the even numbers** in the parameter. - -2. Write a function called `multiplesOfThree` that takes an array of **numbers** as a - parameter, and returns an array of only the numbers that are multiples of - three. - -3. Write a function called `positives` that takes an array of **numbers** as a parameter, and - returns an array of only the numbers that are positive. - -4. Write a function called `evenLength` that takes an array of **strings** and - returns an array of only the strings with an even length. - -5. At this point, you should notice a pattern; write a function called `filter` - that takes two parameters: an array and a **function** that, when invoked with - an argument, will return `true` or `false`. `filter` should return a *new - array* of only the elements for which the function returns `true`: - - ```js - function filter(array, f) { - // ... - } - filter([1, 2, 3, 4], function(x) { - return x % 2 === 0; // x is even? - }); // => [2, 4] - ``` - -6. Use `filter` to write/rewrite: - - `odds` - - `positives` - - `negatives` - - `evenLength` - - `largerThanSix` (given an array of numbers, returns those larger than 6) - -7. Using `filter`, write a function `startsWithChar` that accepts two - parameters: an array of strings, and a character (*e.g.* "a"), and returns an - array of only the strings that start with that character: - - ```js - function startsWithChar(strings, character) { - // ... - } - var words = "the quick brown fox jumps over the lazy dog".split(" "); - startsWithChar(words, "q"); // => ["quick"] - startsWithChar(words, "t"); // => ["the", "the"] - ``` +#### Sorry, we haven't had the chance to produce solutions for this part of the workshop yet. diff --git a/README.md b/README.md index 0d7864f..fdbf31a 100644 --- a/README.md +++ b/README.md @@ -1,58 +1,9 @@ -# [Hack Reactor](http://www.hackreactor.com): JavaScript 401 Workshop +# [Hack Reactor](https://www.hackreactor.com): JavaScript 401 Workshop (Solutions) -## Overview +Hey there! Welcome to the `solutions` branch of this workshop. Here you will find reference solutions to the practice exercises for Hack Reactor's JavaScript 401 workshop. -#### Scheduled Length: 3 Hours +Much like the `master` branch of this repository, solutions are grouped by section. Please navigate into the respective section's folder on this branch to find its exercise solutions. -Hey there! Ready to get your hands dirty with some code? This is the practice exercise repository for Hack Reactor's JavaScript 401 workshop. JavaScript 301 is the fourth and final lesson in our free, four-part Introductory JavaScript Series (101, 201, 301 and 401). We're excited to have you. +**IMPORTANT:** Please do not refer to these solutions until you've given each exercise set a valiant effort. Please also note that only the `Basic Requirements` portions for each section may have solutions included. -**EXPECTATION:** You will be expected to fully engage during lecture periods. Accordingly, please wait until the designated times during this live workshop to explore the exercises. You will be given 10-15 minutes per section, so please pace yourself accordingly. - -**NEED HELP?** Practice developing your autonomy as a programmer. Use [Google Search](https://www.google.com) or [Stack Overflow](https://www.stackoverflow.com), peruse documentation at [mdn.io](https://www.mdn.io), or talk to your friendly neighbor. If you're utterly stuck, flag down your instructor for guidance. - -**_DISCLAIMER:_** _Completion of this workshop is no guarantee of admission into the Hack Reactor immersive program, nor does it have any influence in the admissions process._ - -## Slides - -The slide deck for this workshop can be found [here](https://docs.google.com/presentation/d/e/2PACX-1vS646Yid_kkRxm5kLCzl-TQ2wfl7aplNjABMGHj2LcOyAOTmtE1gW_kprb7XGz3zS-6P0izrXOKqKEU/pub?start=false&loop=false&delayms=3000). - -## Exercises - -Each lecture in this workshop will be followed by a set of self-guided practice exercises. The exercises are divided by section and are housed in their respective folders within this Github repository. - -Each section of practice exercises has a `Basic Requirements` portion. Some sections may also contain additional sections for advanced practice. During the live workshop, you are only expected to complete the `Basic Requirements` sections and may complete the remainder as homework. - -_For your ease of access – click the following links for each section's practice exercises._ - -- Part I: Hoisting (no exercises) -- Part II: [Scopes](./2-scopes) -- Part III: [Higher-Order Functions](./3-higher-order-functions) -- Part IV: [Closures](./4-closures) - -## Exercise Solutions - -You may find reference solutions for this workshop's exercises on the `solutions` [branch](https://github.com/hackreactor/javascript_401/tree/solutions/) of this repository. Please do not refer to the solutions until you've given each problem set a valiant effort. - -## Thinking about JavaScript - -##### Reasoning Methods - -As you embark on your learning journey, a sound method for thinking about JavaScript will be to consider each line of code as a discrete instruction being provided to your computer. - -- What is each line of code intended to do individually? -- How about when combined together? - -It will be beneficial for your growth as a sophisticated programmer to think deeply about the intentions of your code so you can predict and understand the behavior your program produces. - -- _What_ is the expected output of the code? -- _Why_ will the code produce the output that I expect? - -Thinking about each line of code can take many shapes: -- How is this line of code structured and why? -- What syntax rules is this line of code following? Not following? -- Where is this line of code located contextually within the program? -- What references is this line of code making to other parts of the program? Are such references sound? - -##### Vocabulary Development - -Developing your vocabulary as a programmer is as important as learning to write code. To accelerate your conversational capabilities, we recommend partnering with a neighbor to discuss your code at every opportunity. The more opportunities you have to explain yourself, the better. Don't worry – with time, the ambiguity with which you presently speak about code will transform into eloquent prose. +**On Semantics:** Perfectly valid solutions can be written in a different style than the ones you find here. Please don't feel like your solutions need to have the exact same structure as those found herein; there are often numerous ways to solve the same problem in programming. From fb328537ea13e783492ce8ad10fea26b318959c3 Mon Sep 17 00:00:00 2001 From: Tyler Lambe Date: Fri, 10 Jan 2020 14:34:08 -0500 Subject: [PATCH 2/4] fixes order --- {3-higher-order-functions => 1-hoisting}/README.md | 2 +- 2-higher-order-functions/README.md | 3 +++ {2-scopes => 3-scopes}/README.md | 2 +- {2-scopes => 3-scopes}/SpecRunner.html | 0 {2-scopes => 3-scopes}/functions.js | 4 ++++ {2-scopes => 3-scopes}/lib/chai/chai.js | 0 {2-scopes => 3-scopes}/lib/mocha/mocha.css | 0 {2-scopes => 3-scopes}/lib/mocha/mocha.js | 0 8 files changed, 9 insertions(+), 2 deletions(-) rename {3-higher-order-functions => 1-hoisting}/README.md (66%) create mode 100644 2-higher-order-functions/README.md rename {2-scopes => 3-scopes}/README.md (67%) rename {2-scopes => 3-scopes}/SpecRunner.html (100%) rename {2-scopes => 3-scopes}/functions.js (99%) rename {2-scopes => 3-scopes}/lib/chai/chai.js (100%) rename {2-scopes => 3-scopes}/lib/mocha/mocha.css (100%) rename {2-scopes => 3-scopes}/lib/mocha/mocha.js (100%) diff --git a/3-higher-order-functions/README.md b/1-hoisting/README.md similarity index 66% rename from 3-higher-order-functions/README.md rename to 1-hoisting/README.md index 4168c99..c4b0310 100644 --- a/3-higher-order-functions/README.md +++ b/1-hoisting/README.md @@ -1,3 +1,3 @@ -# Part III: Higher-Order Functions (Solutions) +# Part I: Hoisting (Solutions) #### Sorry, we haven't had the chance to produce solutions for this part of the workshop yet. diff --git a/2-higher-order-functions/README.md b/2-higher-order-functions/README.md new file mode 100644 index 0000000..1d5596f --- /dev/null +++ b/2-higher-order-functions/README.md @@ -0,0 +1,3 @@ +# Part II: Higher-Order Functions (Solutions) + +#### Sorry, we haven't had the chance to produce solutions for this part of the workshop yet. diff --git a/2-scopes/README.md b/3-scopes/README.md similarity index 67% rename from 2-scopes/README.md rename to 3-scopes/README.md index 4f8f6f8..6d89949 100644 --- a/2-scopes/README.md +++ b/3-scopes/README.md @@ -1,3 +1,3 @@ -# Part II: Scopes (Solutions) +# Part III: Scopes (Solutions) Please see the `functions.js` file for the complete solution. diff --git a/2-scopes/SpecRunner.html b/3-scopes/SpecRunner.html similarity index 100% rename from 2-scopes/SpecRunner.html rename to 3-scopes/SpecRunner.html diff --git a/2-scopes/functions.js b/3-scopes/functions.js similarity index 99% rename from 2-scopes/functions.js rename to 3-scopes/functions.js index 47c49ed..e5dcbf0 100644 --- a/2-scopes/functions.js +++ b/3-scopes/functions.js @@ -20,6 +20,8 @@ expect(ACTUAL === 'inner').to.be.true; }); + // BASIC REQUIREMENTS: + it('inputs to a function are treated as local scope variables', function () { var fn = function (name) { ACTUAL = name; @@ -148,6 +150,8 @@ expect(ACTUAL === 12).to.be.true; }); + // ADVANCED PRACTICE: + it('the rule about retaining access to variables from an outer scope still applies, even after the outer function call (that created the outer scope) has returned', function () { var outerFn = function () { // NOTE: the contents of this function is the same as the entire body of the previous test diff --git a/2-scopes/lib/chai/chai.js b/3-scopes/lib/chai/chai.js similarity index 100% rename from 2-scopes/lib/chai/chai.js rename to 3-scopes/lib/chai/chai.js diff --git a/2-scopes/lib/mocha/mocha.css b/3-scopes/lib/mocha/mocha.css similarity index 100% rename from 2-scopes/lib/mocha/mocha.css rename to 3-scopes/lib/mocha/mocha.css diff --git a/2-scopes/lib/mocha/mocha.js b/3-scopes/lib/mocha/mocha.js similarity index 100% rename from 2-scopes/lib/mocha/mocha.js rename to 3-scopes/lib/mocha/mocha.js From 5f855e7618b890ab3803eede4ce1e27bb6308bfc Mon Sep 17 00:00:00 2001 From: Tyler Lambe Date: Sun, 2 Feb 2020 21:38:20 -0500 Subject: [PATCH 3/4] hoisting exercise solutions added --- 1-hoisting/README.md | 175 +++++++++++++++++++++++- 2-higher-order-functions/README.md | 207 ++++++++++++++++++++++++++++- 2 files changed, 380 insertions(+), 2 deletions(-) diff --git a/1-hoisting/README.md b/1-hoisting/README.md index c4b0310..7a0459d 100644 --- a/1-hoisting/README.md +++ b/1-hoisting/README.md @@ -1,3 +1,176 @@ # Part I: Hoisting (Solutions) -#### Sorry, we haven't had the chance to produce solutions for this part of the workshop yet. +### Two Forms of Functions + +```js +// function declaration +function square(x) { + return x * x; +} + +// function expression +var square = function(x) { + return x * x; +}; +``` + +## Exercises + +### Basic Requirements + +#### Rewrite Functions + +Rewrite the following *function declarations* using a *function expression*: + + ```js + // 1. + function cube(x) { + return x * x * x; + } + + // 2. + function fullName(first, last) { + return first + " " + last; + } + + // 3. + function power(base, exp) { + if (exp === 0) { + return 1; + } + return base * power(base, exp - 1); + } + + // 4. + function sumCubes(numbers) { + var total = 0; + for (var i = 0; i < numbers.length; i++) { + total = total + cube(numbers[i]); + } + return total; + } + ``` + +**FIXED:** + ```js + // 1. + var cube = function(x) { + return x * x * x; + } + + // 2. + var fullName = function(first, last) { + return first + " " + last; + } + + // 3. + var power = function(base, exp) { + if (exp === 0) { + return 1; + } + return base * power(base, exp - 1); + } + + // 4. + var sumCubes = function(numbers) { + var total = 0; + for (var i = 0; i < numbers.length; i++) { + total = total + cube(numbers[i]); + } + return total; + } + ``` + +#### Mechanics of Hoisting + +Type out your best answers to the following questions: + +1. Why does JavaScript output `undefined` instead of throwing an error in the following code? + + ```js + console.log(message); + + var message = 'Hi there!'; + ``` + + **ANSWER:** JavaScript's engine hoists the variable `message` prior to the `console.log()` invocation. At the time of hoisting, the variable `message` has a value of `undefined` until it is assigned a value of `Hi there!` immediately following the `console.log()` invocation. Since the variable exists at the time `console.log()` is invoked, there is no error message, but the value `undefined` is logged to the console. + +2. Why does JavaScript throw an error instead of logging `undefined` in the following code? + + ```js + console.log(message); + + let message = 'Hi there!'; + ``` + + **ANSWER:** JavaScript's ES6 version (released in 2015) came with two new keywords for declaring variables, `let` and `const`. These keywords can be leveraged in JavaScript for numerous purposes. One motivation for using `let` over `var` is that JavaScript will disallow a premature reference to a variable declared using `let`. In the above code, JavaScript's engine will throw an error instead of yielding `undefined` (as was demonstrated by the previous code in this section). + +3. Explain precisely what happens when the following code is executed. + + ```js + console.log(showMessage()); + + var showMessage = function(){ + return 'Hi there!'; + }; + ``` + **ANSWER:** JavaScript's engine will throw an error yielding that `showMessage` is not a function. This is a result of the hoisting of `showMessage`, which, at the time of its attempted invocation, maintains a value of `undefined`. JavaScript's engine doesn't recognize `undefined` as a function, and throws an error accordingly. + + +4. Why does JavaScript *not* throw any errors when the following code is executed? + + ```js + console.log(showMessage()); + + function showMessage(){ + return 'Hi there!'; + } + ``` + + **ANSWER:** JavaScript's engine hoists function declarations differently than it does variables. Variables are hoisted but their respective values aren't assigned until the interpreter reaches the line of code where the variable was defined at author-time. Function declarations behave similarly but also hoist the associated function value. This renders function declarations usable on the first line of code in any JavaScript program, irrespective of where it is defined at author-time. + +#### Code Restructuring + +Restructure the following instances of code to work correctly: + + ```js + // 1. + for(var i = 0; i < values.length; i++){ + console.log(values[i]); + } + + var values = [10, 20, 30]; + ``` + + **FIXED:** + ```js + // 1. + var values = [10, 20, 30]; + + for(var i = 0; i < values.length; i++){ + console.log(values[i]); + } + ``` + + ```js + // 2. + console.log(welcome('Charlie', 'Munger')); + + function welcome(first, last) { + return `Welcome, ${first} ${last}! You last logged in on ${lastLogin}.` + }; + + var lastLogin = '1/1/1970'; + ``` + + **FIXED:** + ```js + // 2. + var lastLogin = '1/1/1970'; + + console.log(welcome('Charlie', 'Munger')); + + function welcome(first, last) { + return `Welcome, ${first} ${last}! You last logged in on ${lastLogin}.` + }; + ``` diff --git a/2-higher-order-functions/README.md b/2-higher-order-functions/README.md index 1d5596f..42e5547 100644 --- a/2-higher-order-functions/README.md +++ b/2-higher-order-functions/README.md @@ -1,3 +1,208 @@ # Part II: Higher-Order Functions (Solutions) -#### Sorry, we haven't had the chance to produce solutions for this part of the workshop yet. +## Exercises + +### Basic Requirements + +#### Iterating Over Arrays Using `each` + +1. Write `each` as seen below in your code editor. + + ```js + function each(array, func) { + for (var i = 0; i < array.length; i++) { + func(array[i]); + } + } + ``` + +2. Finish the implementation of `sumSquares` below (using above `each` function): + + ```js + function sumSquares(numbers) { + var total = 0; + // ... + return total; + } + ``` + +3. Rewrite `sumCubes` using `each`: + + ```js + function sumCubes(numbers) { + var total = 0; + for (var i = 0; i < numbers.length; i++) { + total = total + cube(numbers[i]); + } + return total; + } + ``` + +3. Write a function called `product` that calculates the product of an array of + numbers using a `for` loop; then, refactor it to use `each`. + +4. Write a function called `cubeAll` that cubes each number in an array, and + returns an array of all the numbers *cubed* using a `for` loop; then, + refactor it to use `each`. + +5. Write a function called `odds` that accepts an array as a parameter and + returns an array of just the odd numbers. + +### More Practice + +#### Summations + +1. Write a function `sumByAllElementsMultipliedByFour` that takes an array as an + argument and returns the sum of all elements multiplied by four. + +2. Observe that `sumByAllElementsMultipliedByFour` is a terrible name for a + function – you should also notice that `sumByAllElementsMultipliedByFour` + looks a lot like `sumCubes` and `sumSquares`. + + Write a function `sumBy` that accepts two arguments: an array of numbers and + a *function*. The function will be invoked upon each element in the array, + and its result will be used to compute the sum. + + ```js + function sumBy(numbers, f) { + // ... + } + var numbers = [1, 2, 3, 4]; + sumBy(numbers, square); // => 30 + sumBy(numbers, cube); // => 100 + sumBy(numbers, function(number) { + return number * 4; + }); + // => 40 + ``` + +3. How can you use `sumBy` to compute the sum of an array of + numbers (just the plain sum)? + +4. Write a function `productBy` that works like `sumBy`, but for **products**. + +#### Refactoring + +*If you've attended prior lessons:* As an extended exercise, run back through your code from the past lessons and look for opportunities to refactor your use of `for` loops using +`each`, `map` and `filter`. + +### Advanced + +#### Finding Patterns: Mapping + +1. Write a function `doubleAll` that takes an array of numbers as a parameter + and returns an array of all of those numbers *doubled*: + + ```js + function doubleAll(numbers) { + // ... + } + doubleAll([1, 3, 10, 4, 7]); // => [2, 6, 20, 8, 14] + ``` + +2. Write a function `halveAll` that takes an array of numbers as a parameter and + returns an array of all of those numbers *halved* (divided by two). + +3. Write a function `uppercaseAll` that takes an array of **strings** as a + parameter, and returns an array of all of those strings, but transformed to + *upper case*. You can use `toUpperCase` to convert a string to upper case. + + ```js + "hello, world".toUpperCase(); // => "HELLO, WORLD" + ``` + + +4. You should at this point notice a similarity between all of the above + functions, as well as the `cubeAll` function from the warmup. These functions + all define what we call **mappings**; that is, they *map* from one value to + another. + + ```js + // doubleAll maps from an array of numbers to an array of doubled numbers + // [1, 2, 3, 4] => [2, 4, 6, 8] + + // halveAll maps from an array of numbers to an array of halved numbers + // [1, 2, 3, 4] => [0.5, 1, 1.5, 2] + ``` + +5. Write a function `map` that takes two parameters: an array and a *function* + that, when applied to a single element, produces a new element. `map` should + return an *array* of all elements in the input array transformed using the + input function. Your function should work like this: + + ```js + function map(array, f) { + // ... + } + map([1, 2, 3, 4], function(x) { + return x * 2; + }); + // => [2, 4, 6, 8] + ``` + +6. Complete the invocations of `map` below to produce the desired output (you'll + need to replace `???` with a function): + + ```js + map(["hello", "world"], ???); // => ["HELLO", "WORLD"] + map(["HelLo", "WorLD"], ???); // => ["hello", "world"] + map(["the", "quick", "brown", "fox", "jumped"], ???); // => [3, 5, 5, 3, 6] + var people = [ + {name: "Alyssa P. Hacker", age: 26}, + {name: "Ben Bitdiddle", age: 34}, + {name: "Eva Lu Ator", age: 19}, + {name: "Lem E. Tweakit", age: 40} + ]; + map(people, ???); // => ["Alyssa P. Hacker", "Ben Bitdiddle", "Eva Lu Ator", "Lem E. Tweakit"] + map(people, ???); + // => ["Alyssa P. Hacker is 26", "Ben Bitdiddle is 34", "Eva Lu Ator is 19", "Lem E. Tweakit is 40"] + ``` + +#### Finding Patterns: Filtering + +1. Write a function called `evens` that takes an array of **numbers** as a + parameter, and returns **an array of only the even numbers** in the parameter. + +2. Write a function called `multiplesOfThree` that takes an array of **numbers** as a + parameter, and returns an array of only the numbers that are multiples of + three. + +3. Write a function called `positives` that takes an array of **numbers** as a parameter, and + returns an array of only the numbers that are positive. + +4. Write a function called `evenLength` that takes an array of **strings** and + returns an array of only the strings with an even length. + +5. At this point, you should notice a pattern; write a function called `filter` + that takes two parameters: an array and a **function** that, when invoked with + an argument, will return `true` or `false`. `filter` should return a *new + array* of only the elements for which the function returns `true`: + + ```js + function filter(array, f) { + // ... + } + filter([1, 2, 3, 4], function(x) { + return x % 2 === 0; // x is even? + }); // => [2, 4] + ``` + +6. Use `filter` to write/rewrite: + - `odds` + - `positives` + - `negatives` + - `evenLength` + - `largerThanSix` (given an array of numbers, returns those larger than 6) + +7. Using `filter`, write a function `startsWithChar` that accepts two + parameters: an array of strings, and a character (*e.g.* "a"), and returns an + array of only the strings that start with that character: + + ```js + function startsWithChar(strings, character) { + // ... + } + var words = "the quick brown fox jumps over the lazy dog".split(" "); + startsWithChar(words, "q"); // => ["quick"] + startsWithChar(words, "t"); // => ["the", "the"] + ``` From e56ed2905af038b295ccf554b1f05f165d1345f9 Mon Sep 17 00:00:00 2001 From: Tyler Lambe Date: Sun, 2 Feb 2020 22:01:38 -0500 Subject: [PATCH 4/4] completd hof exercise solutions --- 2-higher-order-functions/README.md | 77 ++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/2-higher-order-functions/README.md b/2-higher-order-functions/README.md index 42e5547..2c7c446 100644 --- a/2-higher-order-functions/README.md +++ b/2-higher-order-functions/README.md @@ -26,6 +26,17 @@ } ``` + **SOLUTION:** + ```js + function sumSquares(numbers) { + var total = 0; + each(numbers, function(value){ + total = total + Math.pow(value, 2); + }); + return total; + } + ``` + 3. Rewrite `sumCubes` using `each`: ```js @@ -38,16 +49,82 @@ } ``` + **SOLUTION:** + ```js + function sumCubes(numbers) { + var total = 0; + each(numbers, function(value){ + total = total + cube(value); + }); + return total; + } + ``` + 3. Write a function called `product` that calculates the product of an array of numbers using a `for` loop; then, refactor it to use `each`. + **SOLUTION:** + ```js + // using a for() loop + function product(numbers){ + var total = 0; + for(var i = 0; i < numbers.length; i++){ + total = total * numbers[i]; + } + return total; + } + + // refactor using each() + function product(numbers){ + var total = 0; + each(numbers, function(value){ + total = total * value; + }); + return total; + } + ``` + 4. Write a function called `cubeAll` that cubes each number in an array, and returns an array of all the numbers *cubed* using a `for` loop; then, refactor it to use `each`. + **SOLUTION:** + ```js + // using a for() loop + function cubeAll(numbers){ + var cubedArr = []; + for(var i = 0; i < numbers.length; i++){ + cubedArr.push(cube(numbers[i])); + } + return cubedArr; + } + + // refactor using each() + function cubeAll(numbers){ + var cubedArr = []; + each(numbers, function(value){ + cubedArr.push(cube(value)); + }); + return cubedArr; + } + ``` + 5. Write a function called `odds` that accepts an array as a parameter and returns an array of just the odd numbers. + **SOLUTION:** + ```js + function odds(numbers) { + var oddsArr = []; + each(numbers, function(value){ + if(value % 2 !== 0){ + odds.push(value); + } + }); + return oddsArr; + } + ``` + ### More Practice #### Summations