var shell = require('..');

var assert = require('assert'),

path = require('path'),

fs = require('fs'),

common = require('../src/common');

shell.config.silent = true;

// save current dir

var cur = shell.pwd();

shell.rm('-rf', 'tmp');

shell.mkdir('tmp');

//

// Invalids

//

assert.equal(fs.existsSync('/asdfasdf'), false); // sanity check

var result = shell.cd('/asdfasdf'); // dir does not exist

assert.ok(shell.error());

assert.equal(result.code, 1);

assert.equal(result.stderr, 'cd: no such file or directory: /asdfasdf');

assert.equal(fs.existsSync('resources/file1'), true); // sanity check

result = shell.cd('resources/file1'); // file, not dir

assert.ok(shell.error());

assert.equal(result.code, 1);

assert.equal(result.stderr, 'cd: not a directory: resources/file1');

result = shell.cd('-'); // Haven't changed yet, so there is no previous directory

assert.ok(shell.error());

assert.equal(result.code, 1);

assert.equal(result.stderr, 'cd: could not find previous directory');

//

// Valids

//

result = shell.cd(cur);

result = shell.cd('tmp');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

assert.equal(path.basename(process.cwd()), 'tmp');

result = shell.cd(cur);

result = shell.cd('/');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

assert.equal(process.cwd(), path.resolve('/'));

result = shell.cd(cur);

result = shell.cd('/');

result = shell.cd('-');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

assert.equal(process.cwd(), path.resolve(cur.toString()));

// cd + other commands

result = shell.cd(cur);

result = shell.rm('-f', 'tmp/*');

assert.equal(fs.existsSync('tmp/file1'), false);

result = shell.cd('resources');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

result = shell.cp('file1', '../tmp');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

result = shell.cd('../tmp');

assert.equal(shell.error(), null);

assert.equal(result.code, 0);

assert.equal(fs.existsSync('file1'), true);

// Test tilde expansion

result = shell.cd('~');

assert.equal(process.cwd(), common.getUserHome());

result = shell.cd('..');

assert.notEqual(process.cwd(), common.getUserHome());

result = shell.cd('~'); // Change back to home

assert.equal(process.cwd(), common.getUserHome());

// Goes to home directory if no arguments are passed

result = shell.cd(cur);

result = shell.cd();

assert.ok(!shell.error());

assert.equal(result.code, 0);

assert.equal(process.cwd(), common.getUserHome());

shell.exit(123);