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diff --git a/node_modules/path-array/test/test.js b/node_modules/path-array/test/test.js
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+++ b/node_modules/path-array/test/test.js
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+
+/**
+ * Module dependencies.
+ */
+
+var assert = require('assert');
+var PathArray = require('../');
+var delimiter = require('path').delimiter || ':';
+
+describe('PathArray', function () {
+  it('should use `process.env` by default', function () {
+    var p = new PathArray();
+    assert.equal(p._env, process.env);
+  });
+  it('should return the $PATH string for .toString()', function () {
+    var p = new PathArray();
+    assert.equal(p.toString(), process.env.PATH);
+  });
+  it('should accept an arbitrary `env` object', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    assert.equal(p.toString(), env.PATH);
+  });
+  it('should work for [n] getter syntax', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    assert.equal('/foo', p[0]);
+    assert.equal('/bar', p[1]);
+  });
+  it('should work for [n]= setter syntax', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    p[0] = '/baz';
+    assert.equal('/baz' + delimiter + '/bar', env.PATH);
+  });
+  it('should work with .push()', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    p.push('/baz');
+    assert.equal('/foo' + delimiter + '/bar' + delimiter + '/baz', env.PATH);
+  });
+  it('should work with .shift()', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    assert.equal('/foo', p.shift());
+    assert.equal('/bar', env.PATH);
+  });
+  it('should work with .pop()', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    assert.equal('/bar', p.pop());
+    assert.equal('/foo', env.PATH);
+  });
+  it('should work with .unshift()', function () {
+    var env = { PATH: '/foo' + delimiter + '/bar' };
+    var p = new PathArray(env);
+    p.unshift('/baz');
+    assert.equal('/baz' + delimiter + '/foo' + delimiter + '/bar', env.PATH);
+  });
+  it('should be able to specify property name to use with second argument', function () {
+    var env = { PYTHONPATH: '/foo' };
+    var p = new PathArray(env, 'PYTHONPATH');
+    assert.equal(1, p.length);
+    p.push('/baz');
+    assert.equal(2, p.length);
+    assert.equal('/foo' + delimiter + '/baz', env.PYTHONPATH);
+  });
+});