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add node modules to repo
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134
app/node_modules/object-keys/test/shim.js
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134
app/node_modules/object-keys/test/shim.js
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var test = require('tape');
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var shimmedKeys = require('../index.js');
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var is = require('is');
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var keys = require('../shim.js');
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var forEach = require('foreach');
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var indexOf = require('indexof');
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var obj = {
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"str": "boz",
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"obj": {},
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"arr": [],
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"bool": true,
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"num": 42,
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"aNull": null,
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"undef": undefined
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};
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var objKeys = ['str', 'obj', 'arr', 'bool', 'num', 'aNull', 'undef'];
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test('exports a function', function (t) {
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if (Object.keys) {
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t.equal(Object.keys, shimmedKeys, 'Object.keys is supported and exported');
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} else {
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t.equal(keys, shimmedKeys, 'Object.keys is not supported; shim is exported');
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}
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t.end();
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});
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test('working with actual shim', function (t) {
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t.notEqual(Object.keys, keys, 'keys shim is not native Object.keys');
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t.end();
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});
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test('works with an object literal', function (t) {
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var theKeys = keys(obj);
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t.equal(is.array(theKeys), true, 'returns an array');
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t.deepEqual(theKeys, objKeys, 'Object has expected keys');
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t.end();
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});
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test('works with an array', function (t) {
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var arr = [1, 2, 3];
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var theKeys = keys(arr);
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t.equal(is.array(theKeys), true, 'returns an array');
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t.deepEqual(theKeys, ['0', '1', '2'], 'Array has expected keys');
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t.end();
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});
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test('works with a function', function (t) {
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var foo = function () {};
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foo.a = true;
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t.doesNotThrow(function () { return keys(foo); }, 'does not throw an error');
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t.deepEqual(keys(foo), ['a'], 'returns expected keys');
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t.end();
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});
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test('returns names which are own properties', function (t) {
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forEach(keys(obj), function (name) {
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t.equal(obj.hasOwnProperty(name), true, name + ' should be returned');
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});
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t.end();
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});
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test('returns names which are enumerable', function (t) {
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var k, loopedValues = [];
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for (k in obj) {
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loopedValues.push(k);
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}
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forEach(keys(obj), function (name) {
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t.notEqual(indexOf(loopedValues, name), -1, name + ' is not enumerable');
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});
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t.end();
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});
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test('throws an error for a non-object', function (t) {
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t.throws(
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function () { return keys(42); },
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new TypeError('Object.keys called on a non-object'),
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'throws on a non-object'
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);
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t.end();
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});
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test('works with an object instance', function (t) {
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var Prototype = function () {};
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Prototype.prototype.foo = true;
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var obj = new Prototype();
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obj.bar = true;
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var theKeys = keys(obj);
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t.equal(is.array(theKeys), true, 'returns an array');
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t.deepEqual(theKeys, ['bar'], 'Instance has expected keys');
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t.end();
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});
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test('works in iOS 5 mobile Safari', function (t) {
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var Foo = function () {};
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Foo.a = function () {};
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// the bug is keys(Foo) => ['a', 'prototype'] instead of ['a']
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t.deepEqual(keys(Foo), ['a'], 'has expected keys');
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t.end();
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});
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test('works in environments with the dontEnum bug (IE < 9)', function (t) {
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var Foo = function () {};
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Foo.prototype.a = function () {};
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// the bug is keys(Foo.prototype) => ['a', 'constructor'] instead of ['a']
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t.deepEqual(keys(Foo.prototype), ['a'], 'has expected keys');
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t.end();
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});
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test('shadowed properties', function (t) {
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var shadowedProps = [
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'dummyControlProp', /* just to be sure */
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'constructor',
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'hasOwnProperty',
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'isPrototypeOf',
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'propertyIsEnumerable',
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'toLocaleString',
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'toString',
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'valueOf'
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];
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shadowedProps.sort();
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var shadowedObject = {};
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forEach(shadowedProps, function (value, index) {
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shadowedObject[value] = index;
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});
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var shadowedObjectKeys = keys(shadowedObject);
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shadowedObjectKeys.sort();
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t.deepEqual(shadowedObjectKeys, shadowedProps, 'troublesome shadowed properties are keys of object literals');
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t.end();
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});
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