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'use strict';
const unassertify = require('..');
const fs = require('fs');
const path = require('path');
const Stream = require('stream');
const assert = require('power-assert');
const browserify = require('browserify');
const coffeeify = require('coffeeify');
const es = require('event-stream');
const convert = require('convert-source-map');
describe('unassertify', function () {
it('removes assert dependency', function (done) {
const b = browserify();
b.add(path.normalize(path.join(__dirname, 'fixtures', 'func', 'fixture.js')));
b.transform(unassertify);
b.bundle().pipe(es.wait(function (err, data) {
assert(!err);
const code = data.toString('utf-8');
// console.log(code);
assert(!/assert/.test(code));
done();
}));
});
it('produces sourcemap when debug: true', function (done) {
const b = browserify({ debug: true });
const testFilepath = path.normalize(path.join(__dirname, 'fixtures', 'func', 'fixture.js'));
b.add(testFilepath);
b.transform(unassertify);
b.bundle().pipe(es.wait(function (err, data) {
assert(!err);
const code = data.toString('utf-8');
// console.log(code);
assert(!/assert/.test(code));
const inlineMap = convert.fromSource(code);
assert(inlineMap);
const sourceMap = inlineMap.toObject();
assert(sourceMap);
// console.log(JSON.stringify(sourceMap, null, 2));
assert(sourceMap.sources.some(function (fpath) { return fpath === testFilepath; }));
done();
}));
});
it('skips files that do not contain assertions', function (done) {
const filename = path.join(__dirname, 'fixtures', 'func', 'no-assert.js');
fs.createReadStream(filename)
.pipe(unassertify(filename, {}))
.pipe(es.wait(function (err, data) {
assert(!err);
const code = data.toString('utf-8');
assert(!/assert/.test(code));
done();
}));
});
});
describe('with preceding transform', function () {
it('just remove assertions and dependencies when debug: false', function (done) {
const b = browserify();
b.add(path.normalize(path.join(__dirname, 'fixtures', 'coffee', 'fixture.coffee')));
b.transform(coffeeify);
b.transform(unassertify);
b.bundle().pipe(es.wait(function (err, data) {
assert(!err);
const code = data.toString('utf-8');
// console.log(code);
const inlineMap = convert.fromSource(code);
assert(!inlineMap);
assert(!/require\('assert'\)/.test(code));
done();
}));
});
it('adjust sourcemap if debug: true', function (done) {
const b = browserify({ debug: true });
const testFilepath = path.normalize(path.join(__dirname, 'fixtures', 'coffee', 'fixture.coffee'));
b.add(testFilepath);
b.transform(coffeeify);
b.transform(unassertify);
b.bundle().pipe(es.wait(function (err, data) {
assert(!err);
const code = data.toString('utf-8');
// console.log(code);
assert(!/require\('assert'\)/.test(code));
const inlineMap = convert.fromSource(code);
assert(inlineMap);
const sourceMap = inlineMap.toObject();
assert(sourceMap);
// console.log(JSON.stringify(sourceMap, null, 2));
assert(sourceMap.sources.some(function (fpath) { return testFilepath.lastIndexOf(fpath) !== -1; }));
const originalCode = fs.readFileSync(testFilepath, 'utf-8');
assert(sourceMap.sourcesContent.some(function (eachCode) {
return eachCode === originalCode;
}));
done();
}));
});
});
describe('adjust sourcemap if debug: true', function () {
const stream = unassertify(
'/absolute/path/to/test/fixtures/func/fixture.js',
{
_flags: {
entries: [
'./test/fixtures/func/fixture.js'
],
debug: true
}
});
it('should return a stream', function () {
assert(stream instanceof Stream);
});
it('should not transform', function (done) {
let output = '';
stream.on('data', function (buf) {
output += buf;
});
stream.on('end', function () {
const expected = fs.readFileSync('test/fixtures/func/expected-with-sourcemap.js', 'utf8');
assert.equal(output, expected);
done();
});
const file = fs.createReadStream('test/fixtures/func/fixture.js');
file.pipe(stream);
});
});
describe('just remove assertions if debug: false', function () {
const stream = unassertify(
'/absolute/path/to/test/fixtures/func/fixture.js',
{
_flags: {
entries: [
'./test/fixtures/func/fixture.js'
],
debug: false
}
});
it('should return a stream', function () {
assert(stream instanceof Stream);
});
it('should remove assertions', function (done) {
let output = '';
stream.on('data', function (buf) {
output += buf;
});
stream.on('end', function () {
const expected = fs.readFileSync('test/fixtures/func/expected.js', 'utf8');
assert.equal(output, expected);
done();
});
const file = fs.createReadStream('test/fixtures/func/fixture.js');
file.pipe(stream);
});
});
describe('when incoming code is JSON file', function () {
const stream = unassertify(
process.cwd() + '/test/fixtures/data.json',
{
_flags: {
basedir: '/absolute/path/to',
cache: {},
debug: true
}
}
);
it('should return a stream', function () {
assert(stream instanceof Stream);
});
it('should not transform', function (done) {
let output = '';
stream.on('data', function (buf) {
output += buf;
});
stream.on('end', function () {
const expected = fs.readFileSync('test/fixtures/data.json', 'utf8');
assert.equal(output, expected);
done();
});
const file = fs.createReadStream('test/fixtures/data.json');
file.pipe(stream);
});
});
describe('when incoming code contains #! hash bang', function () {
const stream = unassertify(
'/tmp/JSONStream.js',
{ _flags: {} }
);
it('should ignore hashbang', function (done) {
stream.on('end', function () {
// We didn't crash while parsing!
done();
});
stream.end('#!/usr/bin/env node\n\nvar assert = require("assert"); assert(10 == 10);');
});
});