test: set up ava and move cd.js (#561)

* test: set up ava and move cd.js

Set up ava as the new test framework. Migrate the tests for the cd command to
use the ava framework.

* refactor: reorder imports, remove useless dep

.eslintignore

@@ -1,3 +1,4 @@
+ava-test/resources/
 test/resources/
 node_modules/
 make.js

ava-test/.eslintrc.json

@@ -0,0 +1,26 @@
+{
+  "env": {
+    "node": true
+  },
+  "extends": "airbnb-base",
+  "rules": {
+    "import/no-mutable-exports": 0,
+    "global-require": 0,
+    "vars-on-top": 0,
+    "spaced-comment": [2, "always", { "markers": ["@", "@include"], "exceptions": ["@"] }],
+    "no-param-reassign": 0,
+    "no-console": 0,
+    "curly": 0,
+    "no-var": 2,
+    "prefer-const": 2,
+    "prefer-template": 0,
+    "prefer-arrow-callback": 0,
+    "no-underscore-dangle": 0,
+    "max-len": 0,
+    "new-cap": [2, {
+      "capIsNewExceptions": [
+        "ShellString"
+      ]}
+    ]
+  }
+}

ava-test/cd.js

@@ -0,0 +1,105 @@
+import fs from 'fs';
+import path from 'path';
+
+import test from 'ava';
+
+import shell from '..';
+import common from '../src/common';
+import utils from './utils/utils';
+
+const cur = shell.pwd().toString();
+
+test.beforeEach(t => {
+  t.context.tmp = utils.getTempDir();
+  shell.config.silent = true;
+  process.chdir(cur);
+  shell.mkdir(t.context.tmp);
+});
+
+test.afterEach.always(t => {
+  process.chdir(cur);
+  shell.rm('-rf', t.context.tmp);
+});
+
+//
+// Invalids
+//
+
+test('nonexistent directory', t => {
+  t.falsy(fs.existsSync('/asdfasdf'));
+  const result = shell.cd('/asdfasdf'); // dir does not exist
+  t.truthy(shell.error());
+  t.is(result.code, 1);
+  t.is(result.stderr, 'cd: no such file or directory: /asdfasdf');
+});
+
+test('file not dir', t => {
+  t.truthy(fs.existsSync('resources/file1')); // sanity check
+  const result = shell.cd('resources/file1'); // file, not dir
+  t.truthy(shell.error());
+  t.is(result.code, 1);
+  t.is(result.stderr, 'cd: not a directory: resources/file1');
+});
+
+test('no previous dir', t => {
+  const result = shell.cd('-'); // Haven't changed yet, so there is no previous directory
+  t.truthy(shell.error());
+  t.is(result.code, 1);
+  t.is(result.stderr, 'cd: could not find previous directory');
+});
+
+//
+// Valids
+//
+
+test('relative path', t => {
+  const result = shell.cd(t.context.tmp);
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  t.is(path.basename(process.cwd()), t.context.tmp);
+});
+
+test('absolute path', t => {
+  const result = shell.cd('/');
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  t.is(process.cwd(), path.resolve('/'));
+});
+
+test('previous directory (-)', t => {
+  shell.cd('/');
+  const result = shell.cd('-');
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  t.is(process.cwd(), path.resolve(cur.toString()));
+});
+
+test('cd + other commands', t => {
+  t.falsy(fs.existsSync(`${t.context.tmp}/file1`));
+  let result = shell.cd('resources');
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  result = shell.cp('file1', `../${t.context.tmp}`);
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  result = shell.cd(`../${t.context.tmp}`);
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  t.truthy(fs.existsSync('file1'));
+});
+
+test('Tilde expansion', t => {
+  shell.cd('~');
+  t.is(process.cwd(), common.getUserHome());
+  shell.cd('..');
+  t.not(process.cwd(), common.getUserHome());
+  shell.cd('~'); // Change back to home
+  t.is(process.cwd(), common.getUserHome());
+});
+
+test('Goes to home directory if no arguments are passed', t => {
+  const result = shell.cd();
+  t.falsy(shell.error());
+  t.is(result.code, 0);
+  t.is(process.cwd(), common.getUserHome());
+});

ava-test/resources/a.txt

@@ -0,0 +1,11 @@
+This is line one
+This is line two
+
+This is line four
+.
+.
+More content here
+.
+.
+
+This is line eleven

ava-test/resources/badlink

@@ -0,0 +1 @@
+not_existed_file

ava-test/resources/cat/file1

@@ -0,0 +1 @@
+test1

ava-test/resources/cat/file2

@@ -0,0 +1 @@
+test2

ava-test/resources/chmod/file1

@@ -0,0 +1,2 @@
+this is test file 1
+default state should be 0644 (rw-r--r--)

ava-test/resources/chmod/xdir/deep/file

@@ -0,0 +1 @@
+a file

ava-test/resources/chmod/xdir/file

@@ -0,0 +1 @@
+a file

ava-test/resources/cp-mode-bits/executable

@@ -0,0 +1 @@
+asdf

ava-test/resources/cp/a

@@ -0,0 +1 @@
+asdf

ava-test/resources/cp/b

@@ -0,0 +1 @@
+asdf

ava-test/resources/cp/dir_a/z

@@ -0,0 +1 @@
+asdf

ava-test/resources/cp/dir_b/dir_b_a/dir_b_a_a/z

@@ -0,0 +1 @@
+asdf

ava-test/resources/cp/fakeLinks/file.txt

@@ -0,0 +1 @@
+This is a file

ava-test/resources/cp/fakeLinks/sym.lnk

@@ -0,0 +1 @@
+This is not a link

ava-test/resources/cp/links/file.txt

@@ -0,0 +1 @@
+This is a file

ava-test/resources/cp/links/sym.lnk

@@ -0,0 +1 @@
+file.txt

ava-test/resources/cp/symFolder

@@ -0,0 +1 @@
+links/

ava-test/resources/exec/slow.js

@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+setTimeout(function() {
+    console.log('slow');
+}, parseInt(process.argv[2], 10));

ava-test/resources/external/node_script.js

@@ -0,0 +1,2 @@
+console.log('node_script_1234');
+

ava-test/resources/file1

@@ -0,0 +1 @@
+test1

ava-test/resources/file1.js

@@ -0,0 +1 @@
+test

ava-test/resources/file1.txt

@@ -0,0 +1 @@
+test1

ava-test/resources/file2

@@ -0,0 +1 @@
+test2

ava-test/resources/file2.js

@@ -0,0 +1 @@
+test

ava-test/resources/file2.txt

@@ -0,0 +1 @@
+test2

ava-test/resources/find/.hidden

@@ -0,0 +1 @@
+asdf

ava-test/resources/find/a

@@ -0,0 +1 @@
+asdf

ava-test/resources/find/b

@@ -0,0 +1 @@
+asdf

ava-test/resources/find/broken_link

@@ -0,0 +1 @@
+non_existent

ava-test/resources/find/dir1/a_dir1

@@ -0,0 +1 @@
+asdf

ava-test/resources/find/dir1/dir11/a_dir11

@@ -0,0 +1 @@
+asdf

ava-test/resources/find/dir2/a_dir1

@@ -0,0 +1 @@
+asdf

ava-test/resources/grep/file

@@ -0,0 +1,5 @@
+alphaaaaaaabeta
+howareyou
+alphbeta
+this line ends in.js
+lllllllllllllllll.js

ava-test/resources/head/file1.txt

@@ -0,0 +1,50 @@
+file1 1
+file1 2
+file1 3
+file1 4
+file1 5
+file1 6
+file1 7
+file1 8
+file1 9
+file1 10
+file1 11
+file1 12
+file1 13
+file1 14
+file1 15
+file1 16
+file1 17
+file1 18
+file1 19
+file1 20
+file1 21
+file1 22
+file1 23
+file1 24
+file1 25
+file1 26
+file1 27
+file1 28
+file1 29
+file1 30
+file1 31
+file1 32
+file1 33
+file1 34
+file1 35
+file1 36
+file1 37
+file1 38
+file1 39
+file1 40
+file1 41
+file1 42
+file1 43
+file1 44
+file1 45
+file1 46
+file1 47
+file1 48
+file1 49
+file1 50

ava-test/resources/head/file2.txt

@@ -0,0 +1,50 @@
+file2 1
+file2 2
+file2 3
+file2 4
+file2 5
+file2 6
+file2 7
+file2 8
+file2 9
+file2 10
+file2 11
+file2 12
+file2 13
+file2 14
+file2 15
+file2 16
+file2 17
+file2 18
+file2 19
+file2 20
+file2 21
+file2 22
+file2 23
+file2 24
+file2 25
+file2 26
+file2 27
+file2 28
+file2 29
+file2 30
+file2 31
+file2 32
+file2 33
+file2 34
+file2 35
+file2 36
+file2 37
+file2 38
+file2 39
+file2 40
+file2 41
+file2 42
+file2 43
+file2 44
+file2 45
+file2 46
+file2 47
+file2 48
+file2 49
+file2 50

ava-test/resources/head/shortfile1

@@ -0,0 +1 @@
+short1

ava-test/resources/head/shortfile2

@@ -0,0 +1 @@
+short2

ava-test/resources/issue44/main.js

@@ -0,0 +1 @@
+123

ava-test/resources/link

@@ -0,0 +1 @@
+file1

ava-test/resources/ls/.hidden_dir/nada

@@ -0,0 +1 @@
+asdf

ava-test/resources/ls/.hidden_file

@@ -0,0 +1 @@
+asdf

ava-test/resources/ls/a_dir/.hidden_dir/nada

@@ -0,0 +1 @@
+nada

ava-test/resources/ls/a_dir/b_dir/z

@@ -0,0 +1 @@
+asdf

ava-test/resources/ls/a_dir/nada

@@ -0,0 +1 @@
+asdf

ava-test/resources/ls/file1

@@ -0,0 +1 @@
+test

ava-test/resources/ls/file1.js

@@ -0,0 +1 @@
+test

ava-test/resources/ls/file2

@@ -0,0 +1 @@
+test

ava-test/resources/ls/file2.js

@@ -0,0 +1 @@
+test

ava-test/resources/ls/filename(with)[chars$]^that.must+be-escaped

@@ -0,0 +1 @@
+asdf

ava-test/resources/pushd/a/dummy

@@ -0,0 +1 @@
+meh

ava-test/resources/pushd/b/c/dummy

@@ -0,0 +1 @@
+meh

ava-test/resources/rm/a_dir/a_file

@@ -0,0 +1 @@
+asdf

ava-test/resources/rm/fake.lnk

@@ -0,0 +1 @@
+missing

ava-test/resources/rm/link_to_a_dir

@@ -0,0 +1 @@
+a_dir

ava-test/resources/shjs/a-file.js

@@ -0,0 +1,2 @@
+console.log('OK!');
+process.exit(0);

ava-test/resources/shjs/coffeescript.coffee

@@ -0,0 +1,2 @@
+msg = 'CoffeeScript: OK!'
+console.log msg

ava-test/resources/shjs/exit-0.js

@@ -0,0 +1 @@
+process.exit(0);

ava-test/resources/shjs/exit-codes.js

@@ -0,0 +1 @@
+process.exit(42);

ava-test/resources/shjs/stdout-stderr.js

@@ -0,0 +1,2 @@
+console.log('stdout: OK!');
+console.error('stderr: OK!');