6 var assert = require('assert');
7 var PathArray = require('../');
8 var delimiter = require('path').delimiter || ':';
10 describe('PathArray', function () {
11 it('should use `process.env` by default', function () {
12 var p = new PathArray();
13 assert.equal(p._env, process.env);
15 it('should return the $PATH string for .toString()', function () {
16 var p = new PathArray();
17 assert.equal(p.toString(), process.env.PATH);
19 it('should accept an arbitrary `env` object', function () {
20 var env = { PATH: '/foo' + delimiter + '/bar' };
21 var p = new PathArray(env);
22 assert.equal(p.toString(), env.PATH);
24 it('should work for [n] getter syntax', function () {
25 var env = { PATH: '/foo' + delimiter + '/bar' };
26 var p = new PathArray(env);
27 assert.equal('/foo', p[0]);
28 assert.equal('/bar', p[1]);
30 it('should work for [n]= setter syntax', function () {
31 var env = { PATH: '/foo' + delimiter + '/bar' };
32 var p = new PathArray(env);
34 assert.equal('/baz' + delimiter + '/bar', env.PATH);
36 it('should work with .push()', function () {
37 var env = { PATH: '/foo' + delimiter + '/bar' };
38 var p = new PathArray(env);
40 assert.equal('/foo' + delimiter + '/bar' + delimiter + '/baz', env.PATH);
42 it('should work with .shift()', function () {
43 var env = { PATH: '/foo' + delimiter + '/bar' };
44 var p = new PathArray(env);
45 assert.equal('/foo', p.shift());
46 assert.equal('/bar', env.PATH);
48 it('should work with .pop()', function () {
49 var env = { PATH: '/foo' + delimiter + '/bar' };
50 var p = new PathArray(env);
51 assert.equal('/bar', p.pop());
52 assert.equal('/foo', env.PATH);
54 it('should work with .unshift()', function () {
55 var env = { PATH: '/foo' + delimiter + '/bar' };
56 var p = new PathArray(env);
58 assert.equal('/baz' + delimiter + '/foo' + delimiter + '/bar', env.PATH);
60 it('should be able to specify property name to use with second argument', function () {
61 var env = { PYTHONPATH: '/foo' };
62 var p = new PathArray(env, 'PYTHONPATH');
63 assert.equal(1, p.length);
65 assert.equal(2, p.length);
66 assert.equal('/foo' + delimiter + '/baz', env.PYTHONPATH);