mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-31 15:27:50 +00:00
3608 lines
99 KiB
JavaScript
3608 lines
99 KiB
JavaScript
;(function(window, undefined) {
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'use strict';
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/** Method and object shortcuts */
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var document = window.document,
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amd = window.define && define.amd,
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body = document && document.body,
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create = Object.create,
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freeze = Object.freeze,
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phantom = window.phantom,
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process = window.process,
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slice = Array.prototype.slice,
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system = window.system,
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toString = Object.prototype.toString;
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/** Use a single "load" function */
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var load = typeof require == 'function' ? require : window.load;
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/** The file path of the Lo-Dash file to test */
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var filePath = (function() {
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var min = 0;
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var result = phantom
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? phantom.args
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: (system
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? (min = 1, system.args)
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: (process ? (min = 2, process.argv) : (window.arguments || []))
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);
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var last = result[result.length - 1];
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result = (result.length > min && !/test(?:\.js)?$/.test(last))
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? last
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: '../lodash.js';
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try {
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return require('fs').realpathSync(result);
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} catch(e) {
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return result;
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}
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}());
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/** The basename of the Lo-Dash file to test */
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var basename = /[\w.-]+$/.exec(filePath)[0];
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/** The unit testing framework */
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var QUnit = (function() {
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var noop = Function.prototype;
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return window.QUnit || (
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window.addEventListener || (window.addEventListener = noop),
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window.setTimeout || (window.setTimeout = noop),
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window.QUnit = load('../vendor/qunit/qunit/qunit.js') || window.QUnit,
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(load('../vendor/qunit-clib/qunit-clib.js') || { 'runInContext': noop }).runInContext(window),
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addEventListener === noop && delete window.addEventListener,
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window.QUnit
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);
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}());
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/** The `lodash` function to test */
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var _ = window._ || (window._ = (
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_ = load(filePath) || window._,
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_ = _._ || _,
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_.runInContext(window)
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));
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/** Used to pass falsey values to methods */
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var falsey = [
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,
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'',
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0,
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false,
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NaN,
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null,
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undefined
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];
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/** Used to set property descriptors */
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var setDescriptor = (function() {
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try {
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var o = {},
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fn = Object.defineProperty,
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result = fn(o, o, o) && fn;
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} catch(e) { }
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return result;
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}());
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/** Used to check problem JScript properties (a.k.a. the [[DontEnum]] bug) */
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var shadowedProps = [
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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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/** Used to check problem JScript properties too */
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var shadowedObject = _.invert(shadowedProps);
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/*--------------------------------------------------------------------------*/
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/**
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* Skips a given number of tests with a passing result.
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*
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* @private
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* @param {Number} [count=1] The number of tests to skip.
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*/
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function skipTest(count) {
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count || (count = 1);
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while (count--) {
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ok(true, 'test skipped');
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}
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}
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/*--------------------------------------------------------------------------*/
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// add object from iframe
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(function() {
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if (!document || phantom) {
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return;
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}
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var iframe = document.createElement('iframe');
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iframe.frameBorder = iframe.height = iframe.width = 0;
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body.appendChild(iframe);
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var idoc = (idoc = iframe.contentDocument || iframe.contentWindow).document || idoc;
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idoc.write("<script>parent._._object = { 'a': 1, 'b': 2, 'c': 3 };<\/script>");
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idoc.close();
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}());
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/*--------------------------------------------------------------------------*/
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// explicitly call `QUnit.module()` instead of `module()`
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// in case we are in a CLI environment
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QUnit.module(basename);
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(function() {
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test('supports loading ' + basename + ' as the "lodash" module', function() {
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if (amd) {
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equal((lodashModule || {}).moduleName, 'lodash');
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} else {
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skipTest();
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}
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});
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test('supports loading ' + basename + ' with the Require.js "shim" configuration option', function() {
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if (amd) {
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equal((shimmedModule || {}).moduleName, 'shimmed');
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} else {
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skipTest();
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}
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});
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test('supports loading ' + basename + ' as the "underscore" module', function() {
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if (amd) {
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equal((underscoreModule || {}).moduleName, 'underscore');
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} else {
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skipTest();
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}
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});
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test('avoids overwritten native methods', function() {
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if (document && !phantom) {
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notDeepEqual(lodashBadShim.keys({ 'a': 1 }), []);
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} else {
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skipTest();
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}
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash constructor');
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(function() {
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test('creates a new instance when called without the `new` operator', function() {
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ok(_() instanceof _);
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});
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test('should return passed `lodash` instances', function() {
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var wrapped = _(false);
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equal(_(wrapped), wrapped);
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.assign');
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(function() {
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test('should not error on `null` or `undefined` sources (test in IE < 9)', function() {
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try {
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deepEqual(_.assign({}, null, undefined, { 'a': 1 }), { 'a': 1 });
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} catch(e) {
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ok(false);
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}
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.at');
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(function() {
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var args = arguments;
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test('should return `undefined` for nonexistent keys', function() {
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var actual = _.at(['a', 'b', 'c'], [0, 2, 4]);
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deepEqual(actual, ['a', 'c', undefined]);
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});
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test('should return an empty array when no keys are passed', function() {
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deepEqual(_.at(['a', 'b', 'c']), []);
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});
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test('should accept multiple key arguments', function() {
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var actual = _.at(['a', 'b', 'c', 'd'], 0, 2, 3);
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deepEqual(actual, ['a', 'c', 'd']);
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});
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test('should work with an `arguments` object for `collection`', function() {
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var actual = _.at(args, [0, 2]);
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deepEqual(actual, ['a', 'c']);
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});
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test('should work with an object for `collection`', function() {
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var actual = _.at({ 'a': 1, 'b': 2, 'c': 3 }, ['a', 'c']);
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deepEqual(actual, [1, 3]);
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});
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_.each({
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'literal': 'abc',
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'object': Object('abc')
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},
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function(collection, key) {
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test('should work with a string ' + key + ' for `collection`', function() {
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deepEqual(_.at(collection, [0, 2]), ['a', 'c']);
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});
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});
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}('a', 'b', 'c'));
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.bind');
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(function() {
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test('should append array arguments to partially applied arguments (test in IE < 9)', function() {
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var args,
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bound = _.bind(function() { args = slice.call(arguments); }, {}, 'a');
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bound(['b'], 'c');
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deepEqual(args, ['a', ['b'], 'c']);
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});
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test('ensure `new bound` is an instance of `func`', function() {
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var func = function() {},
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bound = _.bind(func, {});
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ok(new bound instanceof func);
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});
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test('should throw a TypeError if `func` is not a function', function() {
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raises(function() { _.bind(); }, TypeError);
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.bindAll');
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(function() {
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test('should bind all methods of `object`', function() {
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function Foo() {
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this._a = 1;
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this._b = 2;
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this.a = function() { return this._a; };
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};
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Foo.prototype.b = function() {return this._b; };
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var object = new Foo;
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_.bindAll(object);
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var actual = _.map(_.functions(object), function(methodName) {
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return object[methodName].call({});
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});
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deepEqual(actual, [1, 2]);
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});
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test('should accept arrays of method names', function() {
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var object = {
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'_a': 1,
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'_b': 2,
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'_c': 3,
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'_d': 4,
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'a': function() { return this._a; },
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'b': function() { return this._b; },
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'c': function() { return this._c; },
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'd': function() { return this._d; }
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};
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_.bindAll(object, ['a', 'b'], ['c']);
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var actual = _.map(_.functions(object), function(methodName) {
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return object[methodName].call({});
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});
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deepEqual(actual, [1, 2, 3, undefined]);
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});
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test('should work with an array `object` argument', function() {
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var array = ['push', 'pop'];
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_.bindAll(array);
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equal(array.pop, Array.prototype.pop);
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.bindKey');
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(function() {
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test('should work when the target function is overwritten', function() {
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var object = {
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'name': 'moe',
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'greet': function(greeting) {
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return greeting + ': ' + this.name;
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}
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};
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var func = _.bindKey(object, 'greet', 'hi');
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equal(func(), 'hi: moe');
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object.greet = function(greeting) {
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return greeting + ' ' + this.name + '!';
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};
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equal(func(), 'hi moe!');
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});
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}());
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/*--------------------------------------------------------------------------*/
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QUnit.module('cloning');
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(function() {
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function Klass() { this.a = 1; }
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Klass.prototype = { 'b': 1 };
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var nonCloneable = {
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'an element': body,
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'a function': Klass
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};
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var objects = {
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'an `arguments` object': arguments,
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'an array': ['a', 'b', 'c', ''],
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'an array-like-object': { '0': 'a', '1': 'b', '2': 'c', '3': '', 'length': 5 },
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'boolean': false,
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'boolean object': Object(false),
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'a Klass instance': new Klass,
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'an object': { 'a': 0, 'b': 1, 'c': 3 },
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'an object with object values': { 'a': /a/, 'b': ['B'], 'c': { 'C': 1 } },
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'an object from another document': _._object || {},
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'null': null,
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'a number': 3,
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'a number object': Object(3),
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'a regexp': /a/gim,
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'a string': 'a',
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'a string object': Object('a'),
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'undefined': undefined
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};
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objects['an array'].length = 5;
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_.forOwn(objects, function(object, key) {
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test('should deep clone ' + key, function() {
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var clone = _.cloneDeep(object);
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strictEqual(_.isEqual(object, clone), true);
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if (_.isObject(object)) {
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notEqual(clone, object);
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} else {
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skipTest();
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}
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});
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});
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_.forOwn(nonCloneable, function(object, key) {
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test('should not clone ' + key, function() {
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strictEqual(_.clone(object), object);
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strictEqual(_.cloneDeep(object), object);
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});
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});
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test('should perform a shallow clone when used as `callback` for `_.map`', function() {
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var expected = [{ 'a': [0] }, { 'b': [1] }],
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actual = _.map(expected, _.clone);
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ok(actual[0] != expected[0] && actual[0].a === expected[0].a && actual[1].b === expected[1].b);
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});
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test('should deep clone `index` and `input` array properties', function() {
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var array = /x/.exec('x'),
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actual = _.cloneDeep(array);
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strictEqual(actual.index, 0);
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equal(actual.input, 'x');
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});
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test('should deep clone objects with circular references', function() {
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var object = {
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'foo': { 'b': { 'foo': { 'c': { } } } },
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'bar': { }
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};
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object.foo.b.foo.c = object;
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object.bar.b = object.foo.b;
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var clone = _.cloneDeep(object);
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ok(clone.bar.b === clone.foo.b && clone === clone.foo.b.foo.c && clone !== object);
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});
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test('should clone problem JScript properties (test in IE < 9)', function() {
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deepEqual(_.clone(shadowedObject), shadowedObject);
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notEqual(_.clone(shadowedObject), shadowedObject);
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deepEqual(_.cloneDeep(shadowedObject), shadowedObject);
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notEqual(_.cloneDeep(shadowedObject), shadowedObject);
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});
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_.each([
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'clone',
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'cloneDeep'
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],
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function(methodName) {
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var func = _[methodName],
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klass = new Klass;
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test('_.' + methodName + ' should pass the correct `callback` arguments', function() {
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var args;
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func(klass, function() {
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args || (args = slice.call(arguments));
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});
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deepEqual(args, [klass]);
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});
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test('_.' + methodName + ' should correct set the `this` binding', function() {
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var actual = func('a', function(value) {
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return this[value];
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}, { 'a': 'A' });
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equal(actual, 'A');
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});
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test('_.' + methodName + ' should handle cloning if `callback` returns `undefined`', function() {
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var actual = _.clone({ 'a': { 'b': 'c' } }, function() { });
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deepEqual(actual, { 'a': { 'b': 'c' } });
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});
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});
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}(1, 2, 3));
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|
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/*--------------------------------------------------------------------------*/
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QUnit.module('lodash.contains');
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(function() {
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_.each({
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'an array': [1, 2, 3, 1, 2, 3],
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'an object': { 'a': 1, 'b': 2, 'c': 3, 'd': 1, 'e': 2, 'f': 3 },
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'a string': '123123'
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},
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function(collection, key) {
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test('should work with ' + key + ' and a positive `fromIndex`', function() {
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strictEqual(_.contains(collection, 1, 2), true);
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});
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test('should work with ' + key + ' and a `fromIndex` >= collection\'s length', function() {
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strictEqual(_.contains(collection, 1, 6), false);
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strictEqual(_.contains(collection, undefined, 6), false);
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strictEqual(_.contains(collection, 1, 8), false);
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strictEqual(_.contains(collection, undefined, 8), false);
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});
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|
|
|
test('should work with ' + key + ' and a negative `fromIndex`', function() {
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strictEqual(_.contains(collection, 2, -3), true);
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});
|
|
|
|
test('should work with ' + key + ' and a negative `fromIndex` <= negative collection\'s length', function() {
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strictEqual(_.contains(collection, 1, -6), true);
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|
strictEqual(_.contains(collection, 2, -8), true);
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|
});
|
|
});
|
|
|
|
_.each({
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'literal': 'abc',
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'object': Object('abc')
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|
},
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|
function(collection, key) {
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|
test('should work with a string ' + key + ' for `collection`', function() {
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strictEqual(_.contains(collection, 'bc'), true);
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|
strictEqual(_.contains(collection, 'd'), false);
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|
});
|
|
});
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|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.countBy');
|
|
|
|
(function() {
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|
test('should only add values to own, not inherited, properties', function() {
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|
var actual = _.countBy([4.2, 6.1, 6.4], function(num) {
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return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
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|
});
|
|
|
|
strictEqual(actual.constructor, 1);
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|
equal(actual.hasOwnProperty, 2);
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|
});
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|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.debounce');
|
|
|
|
(function() {
|
|
test('subsequent "immediate" debounced calls return the last `func` result', function() {
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|
var debounced = _.debounce(_.identity, 32, true),
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result = [debounced('x'), debounced('y')];
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|
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deepEqual(result, ['x', 'x']);
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|
});
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|
|
|
asyncTest('subsequent debounced calls return the last `func` result', function() {
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|
var debounced = _.debounce(_.identity, 32);
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|
debounced('x');
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|
|
setTimeout(function() {
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equal(debounced('y'), 'x');
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|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
asyncTest('should apply default options correctly', function() {
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|
var count = 0;
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|
|
|
var debounced = _.debounce(function(value) {
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count++;
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return value;
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|
}, 32, {});
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|
|
strictEqual(debounced('x'), undefined);
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|
|
|
setTimeout(function() {
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|
strictEqual(count, 1);
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
asyncTest('should work with `leading` option', function() {
|
|
var withLeadingAndTrailing,
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|
counts = [0, 0, 0];
|
|
|
|
_.each([true, { 'leading': true }], function(options, index) {
|
|
var debounced = _.debounce(function(value) {
|
|
counts[index]++;
|
|
return value;
|
|
}, 32, options);
|
|
|
|
if (index == 1) {
|
|
withLeadingAndTrailing = debounced;
|
|
}
|
|
equal(debounced('x'), 'x');
|
|
});
|
|
|
|
_.times(2, _.debounce(function() { counts[2]++; }, 32, { 'leading': true }));
|
|
strictEqual(counts[2], 1);
|
|
|
|
_.each([false, { 'leading': false }], function(options) {
|
|
var withoutLeading = _.debounce(_.identity, 32, options);
|
|
strictEqual(withoutLeading('x'), undefined);
|
|
});
|
|
|
|
setTimeout(function() {
|
|
deepEqual(counts, [1, 1, 2]);
|
|
|
|
withLeadingAndTrailing('x');
|
|
equal(counts[1], 2);
|
|
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
asyncTest('should work with `trailing` option', function() {
|
|
var withCount = 0,
|
|
withoutCount = 0;
|
|
|
|
var withTrailing = _.debounce(function(value) {
|
|
withCount++;
|
|
return value;
|
|
}, 32, { 'trailing': true });
|
|
|
|
var withoutTrailing = _.debounce(function(value) {
|
|
withoutCount++;
|
|
return value;
|
|
}, 32, { 'trailing': false });
|
|
|
|
strictEqual(withTrailing('x'), undefined);
|
|
strictEqual(withoutTrailing('x'), undefined);
|
|
|
|
setTimeout(function() {
|
|
strictEqual(withCount, 1);
|
|
strictEqual(withoutCount, 0);
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.defaults');
|
|
|
|
(function() {
|
|
test('should not overwrite `null` values', function() {
|
|
var actual = _.defaults({ 'a': null }, { 'a': 1 });
|
|
strictEqual(actual.a, null);
|
|
});
|
|
|
|
test('should overwrite `undefined` values', function() {
|
|
var actual = _.defaults({ 'a': undefined }, { 'a': 1 });
|
|
strictEqual(actual.a, 1);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.defer');
|
|
|
|
(function() {
|
|
asyncTest('should accept additional arguments', function() {
|
|
_.defer(function() {
|
|
deepEqual(slice.call(arguments), [1, 2, 3]);
|
|
QUnit.start();
|
|
}, 1, 2, 3);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.difference');
|
|
|
|
(function() {
|
|
test('should work when using `cachedContains`', function() {
|
|
var array1 = _.range(27),
|
|
array2 = array1.slice(),
|
|
a = {},
|
|
b = {},
|
|
c = {};
|
|
|
|
array1.push(a, b, c);
|
|
array2.push(b, c, a);
|
|
|
|
deepEqual(_.difference(array1, array2), []);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.escape');
|
|
|
|
(function() {
|
|
test('should not escape the "/" character', function() {
|
|
equal(_.escape('/'), '/');
|
|
});
|
|
|
|
test('should escape "\'" to "'"', function() {
|
|
equal(_.escape("'"), "'");
|
|
});
|
|
|
|
test('should return an empty string when passed `null` or `undefined`', function() {
|
|
equal(_.escape(null), '');
|
|
equal(_.escape(undefined), '');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.every');
|
|
|
|
(function() {
|
|
test('should return `false` as soon as the `callback` result is falsey', function() {
|
|
strictEqual(_.every([true, null, true], _.identity), false);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('source property checks');
|
|
|
|
_.each(['assign', 'defaults', 'merge'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should not assign inherited `source` properties', function() {
|
|
function Foo() {}
|
|
Foo.prototype = { 'a': 1 };
|
|
deepEqual(func({}, new Foo), {});
|
|
});
|
|
|
|
if (methodName == 'merge') {
|
|
test('lodash.' + methodName + ' should treat sparse arrays as dense', function() {
|
|
var array = Array(3);
|
|
array[0] = 1;
|
|
array[2] = 3;
|
|
|
|
var actual = func([], array),
|
|
expected = array.slice();
|
|
|
|
expected[1] = undefined;
|
|
|
|
ok(1 in actual);
|
|
deepEqual(actual, expected);
|
|
});
|
|
}
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('strict mode checks');
|
|
|
|
_.each(['assign', 'bindAll', 'defaults'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should not throw strict mode errors', function() {
|
|
var object = { 'a': null, 'b': function(){} },
|
|
pass = true;
|
|
|
|
if (freeze) {
|
|
freeze(object);
|
|
try {
|
|
if (methodName == 'bindAll') {
|
|
func(object);
|
|
} else {
|
|
func(object, { 'a': 1 });
|
|
}
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
ok(pass);
|
|
}
|
|
else {
|
|
skipTest();
|
|
}
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.filter');
|
|
|
|
(function() {
|
|
test('should not modify the resulting value from within `callback`', function() {
|
|
var actual = _.filter([0], function(value, index, array) {
|
|
return (array[index] = 1);
|
|
});
|
|
|
|
deepEqual(actual, [0]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
(function() {
|
|
var objects = [
|
|
{ 'a': 0, 'b': 0 },
|
|
{ 'a': 1, 'b': 1 },
|
|
{ 'a': 2, 'b': 2 }
|
|
];
|
|
|
|
_.each({
|
|
'find': [objects[1], undefined, objects[2], objects[1]],
|
|
'findIndex': [1, -1, 2, 1],
|
|
'findKey': ['1', undefined, '2', '1']
|
|
},
|
|
function(expected, methodName) {
|
|
QUnit.module('lodash.' + methodName);
|
|
|
|
var func = _[methodName];
|
|
|
|
test('should return the correct value', function() {
|
|
strictEqual(func(objects, function(object) { return object.a == 1; }), expected[0]);
|
|
});
|
|
|
|
test('should return `' + expected[1] + '` if value is not found', function() {
|
|
strictEqual(func(objects, function(object) { return object.a == 3; }), expected[1]);
|
|
});
|
|
|
|
test('should work with an object for `callback`', function() {
|
|
strictEqual(func(objects, { 'b': 2 }), expected[2]);
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
strictEqual(func(objects, 'b'), expected[3]);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.first');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3];
|
|
|
|
var objects = [
|
|
{ 'a': 2, 'b': 2 },
|
|
{ 'a': 1, 'b': 1 },
|
|
{ 'a': 0, 'b': 0 }
|
|
];
|
|
|
|
test('should return the first element', function() {
|
|
strictEqual(_.first(array), 1);
|
|
});
|
|
|
|
test('should return the first two elements', function() {
|
|
deepEqual(_.first(array, 2), [1, 2]);
|
|
});
|
|
|
|
test('should work with a `callback`', function() {
|
|
var actual = _.first(array, function(num) {
|
|
return num < 3;
|
|
});
|
|
|
|
deepEqual(actual, [1, 2]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.first(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [1, 0, array]);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.first(array, function(value, index) {
|
|
return this[index] < 3;
|
|
}, array);
|
|
|
|
deepEqual(actual, [1, 2]);
|
|
});
|
|
|
|
test('should chain when passing `n`, `callback`, or `thisArg`', function() {
|
|
var actual = _(array).first(2);
|
|
|
|
ok(actual instanceof _);
|
|
|
|
actual = _(array).first(function(num) {
|
|
return num < 3;
|
|
});
|
|
|
|
ok(actual instanceof _);
|
|
|
|
actual = _(array).first(function(value, index) {
|
|
return this[index] < 3;
|
|
}, array);
|
|
|
|
ok(actual instanceof _);
|
|
});
|
|
|
|
test('should not chain when no arguments are passed', function() {
|
|
var actual = _(array).first();
|
|
strictEqual(actual, 1);
|
|
});
|
|
|
|
test('should work with an object for `callback`', function() {
|
|
deepEqual(_.first(objects, { 'b': 2 }), objects.slice(0, 1));
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
deepEqual(_.first(objects, 'b'), objects.slice(0, 2));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.flatten');
|
|
|
|
(function() {
|
|
var array = [{ 'a': [1, [2]] }, { 'a': [3] }];
|
|
|
|
test('should work with a `callback`', function() {
|
|
var actual = _.flatten(array, function(value) {
|
|
return value.a;
|
|
});
|
|
|
|
deepEqual(actual, [1, 2, 3]);
|
|
});
|
|
|
|
test('should work with `isShallow` and `callback`', function() {
|
|
var actual = _.flatten(array, true, function(value) {
|
|
return value.a;
|
|
});
|
|
|
|
deepEqual(actual, [1, [2], 3]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.flatten(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [{ 'a': [1, [2]] }, 0, array]);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.flatten(array, function(value, index) {
|
|
return this[index].a;
|
|
}, array);
|
|
|
|
deepEqual(actual, [1, 2, 3]);
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
deepEqual(_.flatten(array, 'a'), [1, 2, 3]);
|
|
});
|
|
|
|
test('should perform a deep flatten when used as `callback` for `_.map`', function() {
|
|
var array = [[[['a']]], [[['b']]]],
|
|
actual = _.map(array, _.flatten);
|
|
|
|
deepEqual(actual, [['a'], ['b']]);
|
|
});
|
|
|
|
test('should treat sparse arrays as dense', function() {
|
|
var array = [[1, 2, 3], Array(3)],
|
|
expected = [1, 2, 3],
|
|
actual1 = _.flatten(array),
|
|
actual2 = _.flatten(array, true);
|
|
|
|
expected.push(undefined, undefined, undefined);
|
|
|
|
deepEqual(actual1, expected);
|
|
ok(4 in actual1);
|
|
|
|
deepEqual(actual2, expected);
|
|
ok(4 in actual2);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.forEach');
|
|
|
|
(function() {
|
|
test('should return the collection', function() {
|
|
var collection = [1, 2, 3];
|
|
equal(_.forEach(collection, Boolean), collection);
|
|
});
|
|
|
|
test('should return the existing wrapper when chaining', function() {
|
|
var wrapper = _([1, 2, 3]);
|
|
equal(wrapper.forEach(Boolean), wrapper);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual;
|
|
|
|
function callback(value, index) {
|
|
actual = this[index];
|
|
}
|
|
|
|
_.forEach([1], callback, [2]);
|
|
equal(actual, 2);
|
|
|
|
_.forEach({ 'a': 1 }, callback, { 'a': 2 });
|
|
equal(actual, 2);
|
|
});
|
|
|
|
_.each({
|
|
'literal': 'abc',
|
|
'object': Object('abc')
|
|
},
|
|
function(collection, key) {
|
|
test('should work with a string ' + key + ' for `collection` (test in IE < 9)', function() {
|
|
var args,
|
|
values = [];
|
|
|
|
_.forEach(collection, function(value) {
|
|
args || (args = slice.call(arguments));
|
|
values.push(value);
|
|
});
|
|
|
|
deepEqual(args, ['a', 0, collection]);
|
|
deepEqual(values, ['a', 'b', 'c']);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.forIn');
|
|
|
|
(function() {
|
|
test('iterates over inherited properties', function() {
|
|
function Foo() { this.a = 1; }
|
|
Foo.prototype.b = 2;
|
|
|
|
var keys = [];
|
|
_.forIn(new Foo, function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), ['a', 'b']);
|
|
});
|
|
|
|
test('fixes the JScript [[DontEnum]] bug with inherited properties (test in IE < 9)', function() {
|
|
function Foo() {}
|
|
Foo.prototype = shadowedObject;
|
|
|
|
function Bar() {}
|
|
Bar.prototype = new Foo;
|
|
Bar.prototype.constructor = Bar;
|
|
|
|
var keys = [];
|
|
_.forIn(shadowedObject, function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), shadowedProps);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.forOwn');
|
|
|
|
(function() {
|
|
test('iterates over the `length` property', function() {
|
|
var keys = [],
|
|
object = { '0': 'zero', '1': 'one', 'length': 2 };
|
|
|
|
_.forOwn(object, function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), ['0', '1', 'length']);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('collection iteration bugs');
|
|
|
|
_.each(['forEach', 'forIn', 'forOwn'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
var keys = [];
|
|
func(shadowedObject, function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), shadowedProps);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' does not iterate over non-enumerable properties (test in IE < 9)', function() {
|
|
_.forOwn({
|
|
'Array': Array.prototype,
|
|
'Boolean': Boolean.prototype,
|
|
'Date': Date.prototype,
|
|
'Error': Error.prototype,
|
|
'Function': Function.prototype,
|
|
'Object': Object.prototype,
|
|
'Number': Number.prototype,
|
|
'TypeError': TypeError.prototype,
|
|
'RegExp': RegExp.prototype,
|
|
'String': String.prototype
|
|
},
|
|
function(object, builtin) {
|
|
var keys = [];
|
|
func(object, function(value, key) { keys.push(key); });
|
|
deepEqual(keys, [], 'non-enumerable properties on ' + builtin + '.prototype');
|
|
});
|
|
});
|
|
|
|
test('lodash.' + methodName + ' skips the prototype property of functions (test in Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1)', function() {
|
|
function Foo() {}
|
|
Foo.prototype.a = 1;
|
|
|
|
var keys = [];
|
|
function callback(value, key) { keys.push(key); }
|
|
|
|
func(Foo, callback);
|
|
deepEqual(keys, []);
|
|
keys.length = 0;
|
|
|
|
Foo.prototype = { 'a': 1 };
|
|
func(Foo, callback);
|
|
deepEqual(keys, []);
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('object assignments');
|
|
|
|
_.each(['assign', 'defaults', 'merge'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('should return the existing wrapper when chaining', function() {
|
|
var wrapper = _({ 'a': 1 });
|
|
equal(wrapper[methodName]({ 'b': 2 }), wrapper);
|
|
});
|
|
|
|
|
|
test('lodash.' + methodName + ' should assign problem JScript properties (test in IE < 9)', function() {
|
|
var object = {
|
|
'constructor': '0',
|
|
'hasOwnProperty': '1',
|
|
'isPrototypeOf': '2',
|
|
'propertyIsEnumerable': undefined,
|
|
'toLocaleString': undefined,
|
|
'toString': undefined,
|
|
'valueOf': undefined
|
|
};
|
|
|
|
var source = {
|
|
'propertyIsEnumerable': '3',
|
|
'toLocaleString': '4',
|
|
'toString': '5',
|
|
'valueOf': '6'
|
|
};
|
|
|
|
deepEqual(func(object, source), shadowedObject);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' skips the prototype property of functions (test in Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1)', function() {
|
|
function Foo() {}
|
|
Foo.prototype.c = 3;
|
|
|
|
Foo.a = 1;
|
|
Foo.b = 2;
|
|
|
|
var expected = { 'a': 1, 'b': 2 };
|
|
deepEqual(func({}, Foo), expected);
|
|
|
|
Foo.prototype = { 'c': 3 };
|
|
deepEqual(func({}, Foo), expected);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' should work with `_.reduce`', function() {
|
|
var actual = { 'a': 1},
|
|
array = [{ 'b': 2 }, { 'c': 3 }];
|
|
|
|
_.reduce(array, func, actual);
|
|
deepEqual(actual, { 'a': 1, 'b': 2, 'c': 3});
|
|
});
|
|
});
|
|
|
|
_.each(['assign', 'merge'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
func({ 'a': 1 }, { 'a': 2 }, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [1, 2], 'primitive property values');
|
|
|
|
var array = [1, 2],
|
|
object = { 'b': 2 };
|
|
|
|
args = null;
|
|
func({ 'a': array }, { 'a': object }, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [array, object], 'non-primitive property values');
|
|
});
|
|
|
|
test('lodash.' + methodName + ' should correct set the `this` binding', function() {
|
|
var actual = func({}, { 'a': 0 }, function(a, b) {
|
|
return this[b];
|
|
}, [2]);
|
|
|
|
deepEqual(actual, { 'a': 2 });
|
|
});
|
|
|
|
test('lodash.' + methodName + ' should not treat the second argument as a `callback`', function() {
|
|
function callback() {}
|
|
callback.b = 2;
|
|
|
|
var actual = func({ 'a': 1 }, callback);
|
|
deepEqual(actual, { 'a': 1, 'b': 2 });
|
|
|
|
actual = func({ 'a': 1 }, callback, { 'c': 3 });
|
|
deepEqual(actual, { 'a': 1, 'b': 2, 'c': 3 });
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('exit early');
|
|
|
|
_.each(['forEach', 'forIn', 'forOwn'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' can exit early when iterating arrays', function() {
|
|
var array = [1, 2, 3],
|
|
values = [];
|
|
|
|
func(array, function(value) { values.push(value); return false; });
|
|
deepEqual(values, [1]);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' can exit early when iterating objects', function() {
|
|
var object = { 'a': 1, 'b': 2, 'c': 3 },
|
|
values = [];
|
|
|
|
func(object, function(value) { values.push(value); return false; });
|
|
equal(values.length, 1);
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('`__proto__` property bugs');
|
|
|
|
(function() {
|
|
var stringLiteral = '__proto__',
|
|
stringObject = Object(stringLiteral),
|
|
expected = [stringLiteral, stringObject];
|
|
|
|
var array = _.times(100, function(count) {
|
|
return count % 2 ? stringObject : stringLiteral;
|
|
});
|
|
|
|
test('internal data objects should work with the `__proto__` key', function() {
|
|
deepEqual(_.difference(array, array), []);
|
|
deepEqual(_.intersection(array, array), expected);
|
|
deepEqual(_.uniq(array), expected);
|
|
deepEqual(_.without.apply(_, [array].concat(array)), []);
|
|
});
|
|
|
|
test('lodash.memoize should memoize values resolved to the `__proto__` key', function() {
|
|
var count = 0,
|
|
memoized = _.memoize(function() { return ++count; });
|
|
|
|
memoized('__proto__');
|
|
memoized('__proto__');
|
|
strictEqual(count, 1);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.groupBy');
|
|
|
|
(function() {
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.groupBy([4.2, 6.1, 6.4], function(num) {
|
|
return this.floor(num);
|
|
}, Math);
|
|
|
|
deepEqual(actual, { '4': [4.2], '6': [6.1, 6.4] });
|
|
});
|
|
|
|
test('should only add values to own, not inherited, properties', function() {
|
|
var actual = _.groupBy([4.2, 6.1, 6.4], function(num) {
|
|
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
|
|
});
|
|
|
|
deepEqual(actual.constructor, [4.2]);
|
|
deepEqual(actual.hasOwnProperty, [6.1, 6.4]);
|
|
});
|
|
|
|
test('should work with an object for `collection`', function() {
|
|
var actual = _.groupBy({ 'a': 4.2, 'b': 6.1, 'c': 6.4 }, function(num) {
|
|
return Math.floor(num);
|
|
});
|
|
|
|
deepEqual(actual, { '4': [4.2], '6': [6.1, 6.4] });
|
|
});
|
|
|
|
test('should work with a number for `callback`', function() {
|
|
var array = [
|
|
[1, 'a'],
|
|
[2, 'a'],
|
|
[2, 'b']
|
|
];
|
|
|
|
deepEqual(_.groupBy(array, 0), { '1': [[1 , 'a']], '2': [[2, 'a'], [2, 'b']] });
|
|
deepEqual(_.groupBy(array, 1), { 'a': [[1 , 'a'], [2, 'a']], 'b': [[2, 'b']] });
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.has');
|
|
|
|
(function() {
|
|
test('should return `false` for primitives', function() {
|
|
_.each(falsey.concat(1, 'a'), function(value) {
|
|
strictEqual(_.has(value, 'valueOf'), false);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.indexOf');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3, 1, 2, 3];
|
|
|
|
test('should work with a positive `fromIndex`', function() {
|
|
equal(_.indexOf(array, 1, 2), 3);
|
|
});
|
|
|
|
test('should work with `fromIndex` >= `array.length`', function() {
|
|
equal(_.indexOf(array, 1, 6), -1);
|
|
equal(_.indexOf(array, undefined, 6), -1);
|
|
equal(_.indexOf(array, 1, 8), -1);
|
|
equal(_.indexOf(array, undefined, 8), -1);
|
|
});
|
|
|
|
test('should work with a negative `fromIndex`', function() {
|
|
equal(_.indexOf(array, 2, -3), 4);
|
|
});
|
|
|
|
test('should work with a negative `fromIndex` <= `-array.length`', function() {
|
|
strictEqual(_.indexOf(array, 1, -6), 0);
|
|
strictEqual(_.indexOf(array, 2, -8), 1);
|
|
});
|
|
|
|
test('should ignore non-number `fromIndex` values', function() {
|
|
strictEqual(_.indexOf([1, 2, 3], 1, '1'), 0);
|
|
});
|
|
|
|
test('should work with `isSorted`', function() {
|
|
strictEqual(_.indexOf([1, 2, 3], 1, true), 0);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.initial');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3];
|
|
|
|
var objects = [
|
|
{ 'a': 0, 'b': 0 },
|
|
{ 'a': 1, 'b': 1 },
|
|
{ 'a': 2, 'b': 2 }
|
|
];
|
|
|
|
test('returns all elements for `n` of `0`', function() {
|
|
deepEqual(_.initial(array, 0), [1, 2, 3]);
|
|
});
|
|
|
|
test('should allow a falsey `array` argument', function() {
|
|
_.each(falsey, function(index, value) {
|
|
try {
|
|
var actual = index ? _.initial(value) : _.initial();
|
|
} catch(e) { }
|
|
deepEqual(actual, []);
|
|
})
|
|
});
|
|
|
|
test('should exclude last element', function() {
|
|
deepEqual(_.initial(array), [1, 2]);
|
|
});
|
|
|
|
test('should exlcude the last two elements', function() {
|
|
deepEqual(_.initial(array, 2), [1]);
|
|
});
|
|
|
|
test('should work with a `callback`', function() {
|
|
var actual = _.initial(array, function(num) {
|
|
return num > 1;
|
|
});
|
|
|
|
deepEqual(actual, [1]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.initial(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [3, 2, array]);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.initial(array, function(value, index) {
|
|
return this[index] > 1;
|
|
}, array);
|
|
|
|
deepEqual(actual, [1]);
|
|
});
|
|
|
|
test('should work with an object for `callback`', function() {
|
|
deepEqual(_.initial(objects, { 'b': 2 }), objects.slice(0, 2));
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
deepEqual(_.initial(objects, 'b'), objects.slice(0, 1));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.invoke');
|
|
|
|
(function() {
|
|
test('should work with an object for `collection`', function() {
|
|
var object = { 'a': 1, 'b': 2, 'c': 3 };
|
|
deepEqual(_.invoke(object, 'toFixed', 1), ['1.0', '2.0', '3.0']);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isElement');
|
|
|
|
(function() {
|
|
test('should use strict equality in its duck type check', function() {
|
|
var element = body || { 'nodeType': 1 };
|
|
strictEqual(_.isElement(element), true);
|
|
|
|
strictEqual(_.isElement({ 'nodeType': new Number(1) }), false);
|
|
strictEqual(_.isElement({ 'nodeType': true }), false);
|
|
strictEqual(_.isElement({ 'nodeType': [1] }), false);
|
|
strictEqual(_.isElement({ 'nodeType': '1' }), false);
|
|
strictEqual(_.isElement({ 'nodeType': '001' }), false);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isEmpty');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
equal(_.isEmpty(shadowedObject), false);
|
|
});
|
|
|
|
test('skips the prototype property of functions (test in Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1)', function() {
|
|
function Foo() {}
|
|
Foo.prototype.a = 1;
|
|
strictEqual(_.isEmpty(Foo), true);
|
|
|
|
Foo.prototype = { 'a': 1 };
|
|
strictEqual(_.isEmpty(Foo), true);
|
|
});
|
|
|
|
test('should work with an object that has a `length` property', function() {
|
|
strictEqual(_.isEmpty({ 'length': 0 }), false);
|
|
});
|
|
|
|
test('should work with jQuery/MooTools DOM query collections', function() {
|
|
function Foo(elements) { Array.prototype.push.apply(this, elements); }
|
|
Foo.prototype = { 'length': 0, 'splice': Array.prototype.splice };
|
|
|
|
strictEqual(_.isEmpty(new Foo([])), true);
|
|
});
|
|
|
|
test('should work with `arguments` objects (test in IE < 9)', function() {
|
|
strictEqual(_.isEmpty(args), false);
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isEqual');
|
|
|
|
(function() {
|
|
test('should work with `arguments` objects (test in IE < 9)', function() {
|
|
var args1 = (function() { return arguments; }(1, 2, 3)),
|
|
args2 = (function() { return arguments; }(1, 2, 3)),
|
|
args3 = (function() { return arguments; }(1, 2));
|
|
|
|
strictEqual(_.isEqual(args1, args2), true);
|
|
strictEqual(_.isEqual(args1, args3), false);
|
|
});
|
|
|
|
test('fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
strictEqual(_.isEqual(shadowedObject, {}), false);
|
|
});
|
|
|
|
test('should return `true` for like-objects from different documents', function() {
|
|
// ensure `_._object` is assigned (unassigned in Opera 10.00)
|
|
if (_._object) {
|
|
var object = { 'a': 1, 'b': 2, 'c': 3 };
|
|
strictEqual(_.isEqual(object, _._object), true);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
|
|
test('should return `false` when comparing values with circular references to unlike values', function() {
|
|
var array1 = ['a', null, 'c'],
|
|
array2 = ['a', [], 'c'],
|
|
object1 = { 'a': 1, 'b': null, 'c': 3 },
|
|
object2 = { 'a': 1, 'b': {}, 'c': 3 };
|
|
|
|
array1[1] = array1;
|
|
strictEqual(_.isEqual(array1, array2), false);
|
|
|
|
object1.b = object1;
|
|
strictEqual(_.isEqual(object1, object2), false);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.isEqual('a', 'b', function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, ['a', 'b']);
|
|
});
|
|
|
|
test('should correct set the `this` binding', function() {
|
|
var actual = _.isEqual('a', 'b', function(a, b) {
|
|
return this[a] == this[b];
|
|
}, { 'a': 1, 'b': 1 });
|
|
|
|
strictEqual(actual, true);
|
|
});
|
|
|
|
test('should handle comparisons if `callback` returns `undefined`', function() {
|
|
var actual = _.isEqual('a', 'a', function() { });
|
|
strictEqual(actual, true);
|
|
});
|
|
|
|
test('should return a boolean value even if `callback` does not', function() {
|
|
var actual = _.isEqual('a', 'a', function() { return 'a'; });
|
|
strictEqual(actual, true);
|
|
|
|
_.each(falsey, function(value) {
|
|
var actual = _.isEqual('a', 'b', function() { return value; });
|
|
strictEqual(actual, false);
|
|
});
|
|
});
|
|
|
|
test('should ensure `callback` is a function', function() {
|
|
var array = [1, 2, 3],
|
|
eq = _.partial(_.isEqual, array),
|
|
actual = _.every([array, [1, 0, 3]], eq);
|
|
|
|
strictEqual(actual, false);
|
|
})
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isFinite');
|
|
|
|
(function() {
|
|
test('should return `false` for non-numeric values', function() {
|
|
strictEqual(_.isFinite(null), false);
|
|
strictEqual(_.isFinite([]), false);
|
|
strictEqual(_.isFinite(true), false);
|
|
strictEqual(_.isFinite(''), false);
|
|
strictEqual(_.isFinite(' '), false);
|
|
strictEqual(_.isFinite('2px'), false);
|
|
});
|
|
|
|
test('should return `true` for numeric string values', function() {
|
|
strictEqual(_.isFinite('2'), true);
|
|
strictEqual(_.isFinite('0'), true);
|
|
strictEqual(_.isFinite('08'), true);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isObject');
|
|
|
|
(function() {
|
|
test('should avoid V8 bug #2291', function() {
|
|
// trigger V8 bug
|
|
// http://code.google.com/p/v8/issues/detail?id=2291
|
|
var obj = {},
|
|
str = 'foo';
|
|
|
|
// 1: Useless comparison statement, this is half the trigger
|
|
obj == obj;
|
|
// 2: Initial check with object, this is the other half of the trigger
|
|
_.isObject(obj);
|
|
|
|
equal(_.isObject(str), false);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isNaN');
|
|
|
|
(function() {
|
|
test('returns `true` for `new Number(NaN)`', function() {
|
|
strictEqual(_.isNaN(new Number(NaN)), true);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isNumber');
|
|
|
|
(function() {
|
|
test('should avoid `[xpconnect wrapped native prototype]` in Firefox', function() {
|
|
strictEqual(_.isNumber(+"2"), true);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isPlainObject');
|
|
|
|
(function() {
|
|
test('should detect plain objects', function() {
|
|
function Foo(a) {
|
|
this.a = 1;
|
|
}
|
|
|
|
strictEqual(_.isPlainObject(new Foo(1)), false);
|
|
strictEqual(_.isPlainObject([1, 2, 3]), false);
|
|
strictEqual(_.isPlainObject({ 'a': 1 }), true);
|
|
|
|
if (create) {
|
|
strictEqual(_.isPlainObject(create(null)), true);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
if (document) {
|
|
strictEqual(_.isPlainObject(body), false);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
|
|
test('should return `false` for Object objects without a [[Class]] of "Object"', function() {
|
|
strictEqual(_.isPlainObject(arguments), false);
|
|
strictEqual(_.isPlainObject(Error), false);
|
|
strictEqual(_.isPlainObject(Math), false);
|
|
strictEqual(_.isPlainObject(window), false);
|
|
})
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('isType checks');
|
|
|
|
_.each([
|
|
'isArguments',
|
|
'isArray',
|
|
'isBoolean',
|
|
'isDate',
|
|
'isElement',
|
|
'isEmpty',
|
|
'isEqual',
|
|
'isFinite',
|
|
'isFunction',
|
|
'isNaN',
|
|
'isNull',
|
|
'isNumber',
|
|
'isObject',
|
|
'isRegExp',
|
|
'isString',
|
|
'isUndefined'
|
|
],
|
|
function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should return a boolean', function() {
|
|
var expected = 'boolean';
|
|
|
|
equal(typeof func(arguments), expected);
|
|
equal(typeof func([]), expected);
|
|
equal(typeof func(true), expected);
|
|
equal(typeof func(false), expected);
|
|
equal(typeof func(new Date), expected);
|
|
equal(typeof func(body), expected);
|
|
equal(typeof func({}), expected);
|
|
equal(typeof func(undefined), expected);
|
|
equal(typeof func(Infinity), expected);
|
|
equal(typeof func(_), expected);
|
|
equal(typeof func(NaN), expected);
|
|
equal(typeof func(null), expected);
|
|
equal(typeof func(0), expected);
|
|
equal(typeof func({ 'a': 1 }), expected);
|
|
equal(typeof func('a'), expected);
|
|
});
|
|
});
|
|
|
|
(function() {
|
|
test('should return `false` for subclassed values', function() {
|
|
_.each(['isArray', 'isBoolean', 'isDate', 'isFunction', 'isNumber', 'isRegExp', 'isString'], function(methodName) {
|
|
function Foo() {}
|
|
Foo.prototype = window[methodName.slice(2)].prototype;
|
|
|
|
var object = new Foo;
|
|
if (toString.call(object) == '[object Object]') {
|
|
strictEqual(_[methodName](object), false, '_.' + methodName + ' returns `false`');
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.keys');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should work with `arguments` objects (test in IE < 9)', function() {
|
|
deepEqual(_.keys(args), ['0', '1', '2']);
|
|
});
|
|
|
|
test('fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
function Foo() {}
|
|
Foo.prototype.a = 1;
|
|
|
|
deepEqual(_.keys(Foo.prototype), ['a']);
|
|
deepEqual(_.keys(shadowedObject).sort(), shadowedProps);
|
|
});
|
|
|
|
test('skips the prototype property of functions (test in Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1)', function() {
|
|
function Foo() {}
|
|
Foo.prototype.c = 3;
|
|
|
|
Foo.a = 1;
|
|
Foo.b = 2;
|
|
|
|
var expected = ['a', 'b'];
|
|
deepEqual(_.keys(Foo), expected);
|
|
|
|
Foo.prototype = { 'c': 3 };
|
|
deepEqual(_.keys(Foo), expected);
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.last');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3];
|
|
|
|
var objects = [
|
|
{ 'a': 0, 'b': 0 },
|
|
{ 'a': 1, 'b': 1 },
|
|
{ 'a': 2, 'b': 2 }
|
|
];
|
|
|
|
test('should return the last element', function() {
|
|
equal(_.last(array), 3);
|
|
});
|
|
|
|
test('should return the last two elements', function() {
|
|
deepEqual(_.last(array, 2), [2, 3]);
|
|
});
|
|
|
|
test('should work with a `callback`', function() {
|
|
var actual = _.last(array, function(num) {
|
|
return num > 1;
|
|
});
|
|
|
|
deepEqual(actual, [2, 3]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.last(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [3, 2, array]);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.last(array, function(value, index) {
|
|
return this[index] > 1;
|
|
}, array);
|
|
|
|
deepEqual(actual, [2, 3]);
|
|
});
|
|
|
|
test('should chain when passing `n`, `callback`, or `thisArg`', function() {
|
|
var actual = _(array).last(2);
|
|
|
|
ok(actual instanceof _);
|
|
|
|
actual = _(array).last(function(num) {
|
|
return num > 1;
|
|
});
|
|
|
|
ok(actual instanceof _);
|
|
|
|
actual = _(array).last(function(value, index) {
|
|
return this[index] > 1;
|
|
}, array);
|
|
|
|
ok(actual instanceof _);
|
|
});
|
|
|
|
test('should not chain when no arguments are passed', function() {
|
|
var actual = _(array).last();
|
|
equal(actual, 3);
|
|
});
|
|
|
|
test('should work with an object for `callback`', function() {
|
|
deepEqual(_.last(objects, { 'b': 2 }), objects.slice(-1));
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
deepEqual(_.last(objects, 'b'), objects.slice(-2));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.lastIndexOf');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3, 1, 2, 3];
|
|
|
|
test('should work with a positive `fromIndex`', function() {
|
|
strictEqual(_.lastIndexOf(array, 1, 2), 0);
|
|
});
|
|
|
|
test('should work with `fromIndex` >= `array.length`', function() {
|
|
equal(_.lastIndexOf(array, undefined, 6), -1);
|
|
equal(_.lastIndexOf(array, 1, 6), 3);
|
|
equal(_.lastIndexOf(array, undefined, 8), -1);
|
|
equal(_.lastIndexOf(array, 1, 8), 3);
|
|
});
|
|
|
|
test('should work with a negative `fromIndex`', function() {
|
|
strictEqual(_.lastIndexOf(array, 2, -3), 1);
|
|
});
|
|
|
|
test('should work with a negative `fromIndex` <= `-array.length`', function() {
|
|
strictEqual(_.lastIndexOf(array, 1, -6), 0);
|
|
equal(_.lastIndexOf(array, 2, -8), -1);
|
|
});
|
|
|
|
test('should ignore non-number `fromIndex` values', function() {
|
|
equal(_.lastIndexOf([1, 2, 3], 3, '1'), 2);
|
|
equal(_.lastIndexOf([1, 2, 3], 3, true), 2);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.map');
|
|
|
|
(function() {
|
|
test('should return the correct result when iterating an object', function() {
|
|
var actual = _.map({ 'a': 1, 'b': 2, 'c': 3 }, function(value) {
|
|
return value;
|
|
});
|
|
deepEqual(actual, [1, 2, 3]);
|
|
});
|
|
|
|
test('should handle object arguments with non-numeric length properties', function() {
|
|
if (setDescriptor) {
|
|
var object = {};
|
|
setDescriptor(object, 'length', { 'value': 'x' });
|
|
deepEqual(_.map(object, _.identity), []);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.max and lodash.min object iteration');
|
|
|
|
_.each(['max', 'min'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should iterate an object', function() {
|
|
var actual = func({ 'a': 1, 'b': 2, 'c': 3 });
|
|
equal(actual, methodName == 'max' ? 3 : 1);
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.max and lodash.min string iteration');
|
|
|
|
_.each(['max', 'min'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' should iterate a string', function() {
|
|
_.each(['abc', Object('abc')], function(value) {
|
|
var actual = func(value);
|
|
equal(actual, methodName == 'max' ? 'c' : 'a');
|
|
});
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.memoize');
|
|
|
|
(function() {
|
|
test('should expose a `cache` object on the `memoized` function', function() {
|
|
var memoized = _.memoize(_.identity);
|
|
memoized('x');
|
|
|
|
var cache = memoized.cache,
|
|
key = _.keys(cache)[0];
|
|
|
|
equal(cache[key], 'x');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.merge');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should merge `source` into the destination object', function() {
|
|
var names = {
|
|
'stooges': [
|
|
{ 'name': 'moe' },
|
|
{ 'name': 'larry' }
|
|
]
|
|
};
|
|
|
|
var ages = {
|
|
'stooges': [
|
|
{ 'age': 40 },
|
|
{ 'age': 50 }
|
|
]
|
|
};
|
|
|
|
var heights = {
|
|
'stooges': [
|
|
{ 'height': '5\'4"' },
|
|
{ 'height': '5\'5"' }
|
|
]
|
|
};
|
|
|
|
var expected = {
|
|
'stooges': [
|
|
{ 'name': 'moe', 'age': 40, 'height': '5\'4"' },
|
|
{ 'name': 'larry', 'age': 50, 'height': '5\'5"' }
|
|
]
|
|
};
|
|
|
|
deepEqual(_.merge(names, ages, heights), expected);
|
|
});
|
|
|
|
test('should merge sources containing circular references', function() {
|
|
var object = {
|
|
'foo': { 'a': 1 },
|
|
'bar': { 'a': 2 }
|
|
};
|
|
|
|
var source = {
|
|
'foo': { 'b': { 'foo': { 'c': { } } } },
|
|
'bar': { }
|
|
};
|
|
|
|
source.foo.b.foo.c = source;
|
|
source.bar.b = source.foo.b;
|
|
|
|
var actual = _.merge(object, source);
|
|
ok(actual.bar.b === actual.foo.b && actual.foo.b.foo.c === actual.foo.b.foo.c.foo.b.foo.c);
|
|
});
|
|
|
|
test('should not treat `arguments` objects as plain objects', function() {
|
|
var object = {
|
|
'args': args
|
|
};
|
|
|
|
var source = {
|
|
'args': { '3': 4 }
|
|
};
|
|
|
|
var actual = _.merge(object, source);
|
|
equal(_.isArguments(actual.args), false);
|
|
});
|
|
|
|
test('should work with four arguments', function() {
|
|
var expected = { 'a': 4 };
|
|
deepEqual(_.merge({ 'a': 1 }, { 'a': 2 }, { 'a': 3 }, expected), expected);
|
|
});
|
|
|
|
test('should assign `null` values', function() {
|
|
var actual = _.merge({ 'a': 1 }, { 'a': null });
|
|
strictEqual(actual.a, null);
|
|
});
|
|
|
|
test('should not assign `undefined` values', function() {
|
|
var actual = _.merge({ 'a': 1 }, { 'a': undefined });
|
|
strictEqual(actual.a, 1);
|
|
});
|
|
|
|
test('should handle merging if `callback` returns `undefined`', function() {
|
|
var actual = _.merge({ 'a': { 'b': [1, 1] } }, { 'a': { 'b': [0] } }, function() { });
|
|
deepEqual(actual, { 'a': { 'b': [0, 1] } });
|
|
});
|
|
|
|
test('should defer to `callback` when it returns a value other than `undefined`', function() {
|
|
var actual = _.merge({ 'a': { 'b': [0, 1] } }, { 'a': { 'b': [2] } }, function(a, b) {
|
|
return _.isArray(a) ? a.concat(b) : undefined;
|
|
});
|
|
deepEqual(actual, { 'a': { 'b': [0, 1, 2] } });
|
|
});
|
|
|
|
test('should pass the correct values to `callback`', function() {
|
|
var argsList = [],
|
|
array = [1, 2],
|
|
object = { 'b': 2 };
|
|
|
|
_.merge({ 'a': array }, { 'a': object }, function(a, b) {
|
|
argsList.push(slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(argsList, [[array, object], [undefined, 2]]);
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.omit');
|
|
|
|
(function() {
|
|
var object = { 'a': 1, 'b': 2 },
|
|
expected = { 'b': 2 };
|
|
|
|
test('should accept individual property names', function() {
|
|
deepEqual(_.omit(object, 'a'), expected);
|
|
});
|
|
|
|
test('should accept an array of property names', function() {
|
|
deepEqual(_.omit(object, ['a', 'c']), expected);
|
|
});
|
|
|
|
test('should accept mixes of individual and arrays of property names', function() {
|
|
deepEqual(_.omit(object, ['a'], 'c'), expected);
|
|
});
|
|
|
|
test('should iterate over inherited properties', function() {
|
|
function Foo() {}
|
|
Foo.prototype = object;
|
|
|
|
deepEqual(_.omit(new Foo, 'a'), expected);
|
|
});
|
|
|
|
test('should work with an array `object` argument', function() {
|
|
deepEqual(_.omit([1, 2, 3], '0', '2'), { '1': 2 });
|
|
});
|
|
|
|
test('should work with a `callback` argument', function() {
|
|
var actual = _.omit(object, function(value) {
|
|
return value == 1;
|
|
});
|
|
|
|
deepEqual(actual, expected);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args,
|
|
lastKey = _.keys(object).pop();
|
|
|
|
var expected = lastKey == 'b'
|
|
? [1, 'a', object]
|
|
: [2, 'b', object];
|
|
|
|
_.omit(object, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, expected);
|
|
});
|
|
|
|
test('should correct set the `this` binding', function() {
|
|
var actual = _.omit(object, function(value) {
|
|
return value == this.a;
|
|
}, { 'a': 1 });
|
|
|
|
deepEqual(actual, expected);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.once');
|
|
|
|
(function() {
|
|
test('should ignore recursive calls', function() {
|
|
var count = 0;
|
|
|
|
var func = _.once(function() {
|
|
count++;
|
|
func();
|
|
});
|
|
|
|
func();
|
|
strictEqual(count, 1);
|
|
});
|
|
|
|
test('should not throw more than once', function() {
|
|
var pass = true;
|
|
|
|
var func = _.once(function() {
|
|
throw new Error;
|
|
});
|
|
|
|
raises(function() { func(); }, Error);
|
|
|
|
try {
|
|
func();
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
ok(pass);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.parseInt');
|
|
|
|
(function() {
|
|
test('should parse strings with leading whitespace and zeros with a `radix` of 10 by default (test in Chrome, Firefox, and Opera)', function() {
|
|
var whitespace = ' \x09\x0B\x0C\xA0\ufeff\x0A\x0D\u2028\u2029\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000';
|
|
equal(_.parseInt('08'), 8);
|
|
equal(_.parseInt(whitespace + '08'), 8);
|
|
});
|
|
|
|
test('should use a radix of `10`, for non-hexadecimals, if `radix` is `undefined` or `0`', function() {
|
|
equal(_.parseInt('10', 0), 10);
|
|
equal(_.parseInt('10'), 10);
|
|
equal(_.parseInt('10', undefined), 10);
|
|
});
|
|
|
|
test('should use a radix of `16`, for hexadecimals, if `radix` is `undefined` or `0`', function() {
|
|
equal(_.parseInt('0x20', 0), 32);
|
|
equal(_.parseInt('0x20'), 32);
|
|
equal(_.parseInt('0x20', undefined), 32);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('partial methods');
|
|
|
|
_.each(['partial', 'partialRight'], function(methodName) {
|
|
var func = _[methodName];
|
|
|
|
test('lodash.' + methodName + ' partially applies an argument, without additional arguments', function() {
|
|
var arg = 'a',
|
|
fn = function(x) { return x; };
|
|
|
|
equal(func(fn, arg)(), arg);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' partially applies an argument, with additional arguments', function() {
|
|
var arg1 = 'a',
|
|
arg2 = 'b',
|
|
expected = [arg1, arg2],
|
|
fn = function(x, y) { return [x, y]; };
|
|
|
|
if (methodName == 'partialRight') {
|
|
expected.reverse();
|
|
}
|
|
deepEqual(func(fn, arg1)(arg2), expected);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' works without partially applying arguments, without additional arguments', function() {
|
|
var fn = function() { return arguments.length; };
|
|
strictEqual(func(fn)(), 0);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' works without partially applying arguments, with additional arguments', function() {
|
|
var arg = 'a',
|
|
fn = function(x) { return x; };
|
|
|
|
equal(func(fn)(arg), arg);
|
|
});
|
|
|
|
test('lodash.' + methodName + ' should not alter the `this` binding of either function', function() {
|
|
var object = { 'a': 1 },
|
|
fn = function() { return this.a; };
|
|
|
|
strictEqual(func(_.bind(fn, object))(), object.a);
|
|
strictEqual(_.bind(func(fn), object)(), object.a);
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.partialRight');
|
|
|
|
(function() {
|
|
test('should work as a deep `_.defaults`', function() {
|
|
var object = { 'a': { 'b': 1 } },
|
|
source = { 'a': { 'b': 2, 'c': 3 } },
|
|
expected = { 'a': { 'b': 1, 'c': 3 } };
|
|
|
|
var deepDefaults = _.partialRight(_.merge, _.defaults);
|
|
deepEqual(deepDefaults(object, source), expected);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.pick');
|
|
|
|
(function() {
|
|
var object = { 'a': 1, 'b': 2 };
|
|
|
|
test('should iterate over inherited properties', function() {
|
|
function Foo() {}
|
|
Foo.prototype = object;
|
|
|
|
deepEqual(_.pick(new Foo, 'b'), { 'b': 2 });
|
|
});
|
|
|
|
test('should work with an array `object` argument', function() {
|
|
deepEqual(_.pick([1, 2, 3], '1'), { '1': 2 });
|
|
});
|
|
|
|
test('should work with a `callback` argument', function() {
|
|
var actual = _.pick(object, function(value) {
|
|
return value == 2;
|
|
});
|
|
|
|
deepEqual(actual, { 'b': 2 });
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args,
|
|
lastKey = _.keys(object).pop();
|
|
|
|
var expected = lastKey == 'b'
|
|
? [1, 'a', object]
|
|
: [2, 'b', object];
|
|
|
|
_.pick(object, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, expected);
|
|
});
|
|
|
|
test('should correct set the `this` binding', function() {
|
|
var actual = _.pick(object, function(value) {
|
|
return value == this.b;
|
|
}, { 'b': 2 });
|
|
|
|
deepEqual(actual, { 'b': 2 });
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.pluck');
|
|
|
|
(function() {
|
|
test('should work with an object for `collection`', function() {
|
|
var object = { 'a': [1], 'b': [1, 2], 'c': [1, 2, 3] };
|
|
deepEqual(_.pluck(object, 'length'), [1, 2, 3]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.random');
|
|
|
|
(function() {
|
|
test('should return `0` or `1` when no arguments are passed', function() {
|
|
var actual = _.random();
|
|
ok(actual === 0 || actual === 1);
|
|
});
|
|
|
|
test('supports not passing a `max` argument', function() {
|
|
var actual = _.random(5),
|
|
start = new Date;
|
|
|
|
while ((new Date - start) < 50 && actual == 5) {
|
|
actual = _.random(5);
|
|
}
|
|
notEqual(actual, 5);
|
|
});
|
|
|
|
test('supports large integer values', function() {
|
|
var array = Array(1000),
|
|
min = Math.pow(2, 31),
|
|
max = Math.pow(2, 62);
|
|
|
|
strictEqual(_.every(array, function() {
|
|
return _.random(min, max) >= min;
|
|
}), true);
|
|
|
|
strictEqual(_.some(array, function() {
|
|
return _.random(Number.MAX_VALUE) > 0;
|
|
}), true);
|
|
});
|
|
|
|
test('should coerce arguments to numbers', function() {
|
|
strictEqual(_.random('1', '1'), 1);
|
|
});
|
|
|
|
test('should support floats', function() {
|
|
var min = 1.5,
|
|
max = 1.6,
|
|
actual = _.random(min, max);
|
|
|
|
ok(actual % 1);
|
|
ok(actual >= min && actual <= max);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.range');
|
|
|
|
(function() {
|
|
var func = _.range;
|
|
|
|
test('should treat falsey `start` arguments as `0`', function() {
|
|
_.each(falsey, function(value, index) {
|
|
if (index) {
|
|
deepEqual(_.range(value), []);
|
|
deepEqual(_.range(value, 1), [0]);
|
|
} else {
|
|
deepEqual(_.range(), []);
|
|
}
|
|
});
|
|
});
|
|
|
|
test('should coerce arguments to numbers', function() {
|
|
var actual = [func('0',1), func('1'), func(0, 1, '1')];
|
|
deepEqual(actual, [[0], [0], [0]]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.reduce');
|
|
|
|
(function() {
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args,
|
|
array = [1, 2, 3];
|
|
|
|
_.reduce(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [1, 2, 1, array]);
|
|
});
|
|
|
|
_.each({
|
|
'literal': 'abc',
|
|
'object': Object('abc')
|
|
},
|
|
function(collection, key) {
|
|
test('should work with a string ' + key + ' for `collection` (test in IE < 9)', function() {
|
|
var args;
|
|
|
|
var actual = _.reduce(collection, function(accumulator, value) {
|
|
args || (args = slice.call(arguments));
|
|
return accumulator + value;
|
|
});
|
|
|
|
deepEqual(args, ['a', 'b', 1, collection]);
|
|
equal(actual, 'abc');
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.reduceRight');
|
|
|
|
(function() {
|
|
test('should pass the correct `callback` arguments when iterating an array', function() {
|
|
var args,
|
|
array = [1, 2, 3];
|
|
|
|
_.reduceRight(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [3, 2, 1, array]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments when iterating an object', function() {
|
|
var args,
|
|
object = { 'a': 1, 'b': 2 },
|
|
lastKey = _.keys(object).pop();
|
|
|
|
var expected = lastKey == 'b'
|
|
? [2, 1, 'a', object]
|
|
: [1, 2, 'b', object];
|
|
|
|
_.reduceRight(object, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, expected);
|
|
});
|
|
|
|
_.each({
|
|
'literal': 'abc',
|
|
'object': Object('abc')
|
|
},
|
|
function(collection, key) {
|
|
test('should work with a string ' + key + ' for `collection` (test in IE < 9)', function() {
|
|
var args;
|
|
|
|
var actual = _.reduceRight(collection, function(accumulator, value) {
|
|
args || (args = slice.call(arguments));
|
|
return accumulator + value;
|
|
});
|
|
|
|
deepEqual(args, ['c', 'b', 1, collection]);
|
|
equal(actual, 'cba');
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.result');
|
|
|
|
(function() {
|
|
test('should return `undefined` when passed a falsey `object` argument', function() {
|
|
strictEqual(_.result(), undefined);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.rest');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3];
|
|
|
|
var objects = [
|
|
{ 'a': 2, 'b': 2 },
|
|
{ 'a': 1, 'b': 1 },
|
|
{ 'a': 0, 'b': 0 }
|
|
];
|
|
|
|
test('returns all elements for `n` of `0`', function() {
|
|
deepEqual(_.rest(array, 0), [1, 2, 3]);
|
|
});
|
|
|
|
test('should allow a falsey `array` argument', function() {
|
|
_.each(falsey, function(index, value) {
|
|
try {
|
|
var actual = index ? _.rest(value) : _.rest();
|
|
} catch(e) { }
|
|
deepEqual(actual, []);
|
|
})
|
|
});
|
|
|
|
test('should exclude the first element', function() {
|
|
deepEqual(_.rest(array), [2, 3]);
|
|
});
|
|
|
|
test('should exclude the first two elements', function() {
|
|
deepEqual(_.rest(array, 2), [3]);
|
|
});
|
|
|
|
test('should work with a `callback`', function() {
|
|
var actual = _.rest(array, function(num) {
|
|
return num < 3;
|
|
});
|
|
|
|
deepEqual(actual, [3]);
|
|
});
|
|
|
|
test('should pass the correct `callback` arguments', function() {
|
|
var args;
|
|
|
|
_.rest(array, function() {
|
|
args || (args = slice.call(arguments));
|
|
});
|
|
|
|
deepEqual(args, [1, 0, array]);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.rest(array, function(value, index) {
|
|
return this[index] < 3;
|
|
}, array);
|
|
|
|
deepEqual(actual, [3]);
|
|
});
|
|
|
|
test('should work with an object for `callback`', function() {
|
|
deepEqual(_.rest(objects, { 'b': 2 }), objects.slice(-2));
|
|
});
|
|
|
|
test('should work with a string for `callback`', function() {
|
|
deepEqual(_.rest(objects, 'b'), objects.slice(-1));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.runInContext');
|
|
|
|
(function() {
|
|
test('should not require a fully populated `context` object', function() {
|
|
var pass = false;
|
|
|
|
var lodash = _.runInContext({
|
|
'setTimeout': function(callback) {
|
|
callback();
|
|
}
|
|
});
|
|
|
|
lodash.delay(function() { pass = true; }, 32);
|
|
ok(pass);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.shuffle');
|
|
|
|
(function() {
|
|
test('should shuffle an object', function() {
|
|
var actual = _.shuffle({ 'a': 1, 'b': 2, 'c': 3 });
|
|
deepEqual(actual.sort(), [1, 2, 3]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.size');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should allow a falsey `object` argument', function() {
|
|
_.each(falsey, function(index, value) {
|
|
try {
|
|
var actual = index ? _.size(value) : _.size();
|
|
} catch(e) { }
|
|
strictEqual(actual, 0);
|
|
})
|
|
});
|
|
|
|
test('should work with jQuery/MooTools DOM query collections', function() {
|
|
function Foo(elements) { Array.prototype.push.apply(this, elements); }
|
|
Foo.prototype = { 'length': 0, 'splice': Array.prototype.splice };
|
|
|
|
equal(_.size(new Foo([1, 2, 3])), 3);
|
|
});
|
|
|
|
test('should work with `arguments` objects (test in IE < 9)', function() {
|
|
equal(_.size(args), 3);
|
|
});
|
|
|
|
test('fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
equal(_.size(shadowedObject), 7);
|
|
});
|
|
|
|
_.each({
|
|
'literal': 'abc',
|
|
'object': Object('abc')
|
|
},
|
|
function(collection, key) {
|
|
test('should work with a string ' + key + ' for `collection`', function() {
|
|
deepEqual(_.size(collection), 3);
|
|
});
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.some');
|
|
|
|
(function() {
|
|
test('should return `true` as soon as the `callback` result is truthy', function() {
|
|
strictEqual(_.some([null, true, null], _.identity), true);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.sortBy');
|
|
|
|
(function() {
|
|
test('should perform a stable sort (test in IE > 8, Opera, and V8)', function() {
|
|
function Pair(x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
}
|
|
|
|
var collection = [
|
|
new Pair(1, 1), new Pair(1, 2),
|
|
new Pair(1, 3), new Pair(1, 4),
|
|
new Pair(1, 5), new Pair(1, 6),
|
|
new Pair(2, 1), new Pair(2, 2),
|
|
new Pair(2, 3), new Pair(2, 4),
|
|
new Pair(2, 5), new Pair(2, 6),
|
|
new Pair(undefined, 1), new Pair(undefined, 2),
|
|
new Pair(undefined, 3), new Pair(undefined, 4),
|
|
new Pair(undefined, 5), new Pair(undefined, 6)
|
|
];
|
|
|
|
var actual = _.sortBy(collection, function(pair) {
|
|
return pair.x;
|
|
});
|
|
|
|
deepEqual(actual, collection);
|
|
});
|
|
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.sortBy([1, 2, 3], function(num) {
|
|
return this.sin(num);
|
|
}, Math);
|
|
|
|
deepEqual(actual, [3, 1, 2]);
|
|
});
|
|
|
|
test('should work with an object for `collection`', function() {
|
|
var actual = _.sortBy({ 'a': 1, 'b': 2, 'c': 3 }, function(num) {
|
|
return Math.sin(num);
|
|
});
|
|
|
|
deepEqual(actual, [3, 1, 2]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.sortedIndex');
|
|
|
|
(function() {
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.sortedIndex([1, 2, 3], 4, function(num) {
|
|
return this.sin(num);
|
|
}, Math);
|
|
|
|
strictEqual(actual, 0);
|
|
});
|
|
|
|
test('supports arrays with lengths larger than `Math.pow(2, 31) - 1`', function() {
|
|
var length = Math.pow(2, 32) - 1,
|
|
index = length - 1,
|
|
array = Array(length),
|
|
steps = 0;
|
|
|
|
array[index] = index;
|
|
_.sortedIndex(array, index, function() { steps++; });
|
|
equal(steps, 33);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.support');
|
|
|
|
(function() {
|
|
test('should contain properties with boolean values', function() {
|
|
var props = [
|
|
'argsObject',
|
|
'argsClass',
|
|
'enumPrototypes',
|
|
'fastBind',
|
|
'fastKeys',
|
|
'ownLast',
|
|
'nonEnumArgs',
|
|
'nonEnumShadows',
|
|
'spliceObjects',
|
|
'unindexedChars',
|
|
'nodeClass'
|
|
];
|
|
|
|
_.each(props, function(prop) {
|
|
if (_.has(_.support, prop)) {
|
|
equal(typeof _.support[prop], 'boolean');
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.template');
|
|
|
|
(function() {
|
|
test('supports recursive calls', function() {
|
|
var compiled = _.template('<%= a %><% a = _.template(c, obj) %><%= a %>'),
|
|
data = { 'a': 'A', 'b': 'B', 'c': '<%= b %>' };
|
|
|
|
equal(compiled(data), 'AB');
|
|
});
|
|
|
|
test('should not augment the `options` object', function() {
|
|
var options = {};
|
|
_.template('', null, options);
|
|
deepEqual(options, {});
|
|
});
|
|
|
|
test('should provide the template source when a SyntaxError occurs', function() {
|
|
try {
|
|
_.template('<% if x %>');
|
|
} catch(e) {
|
|
var source = e.source;
|
|
}
|
|
ok(/__p/.test(source));
|
|
});
|
|
|
|
test('should work with complex "interpolate" delimiters', function() {
|
|
_.each({
|
|
'<%= a + b %>': '3',
|
|
'<%= b - a %>': '1',
|
|
'<%= a = b %>': '2',
|
|
'<%= !a %>': 'false',
|
|
'<%= ~a %>': '-2',
|
|
'<%= a * b %>': '2',
|
|
'<%= a / b %>': '0.5',
|
|
'<%= a % b %>': '1',
|
|
'<%= a >> b %>': '0',
|
|
'<%= a << b %>': '4',
|
|
'<%= a & b %>': '0',
|
|
'<%= a ^ b %>': '3',
|
|
'<%= a | b %>': '3',
|
|
'<%= {}.toString.call(0) %>': '[object Number]',
|
|
'<%= a.toFixed(2) %>': '1.00',
|
|
'<%= obj["a"] %>': '1',
|
|
'<%= delete a %>': 'true',
|
|
'<%= "a" in obj %>': 'true',
|
|
'<%= obj instanceof Object %>': 'true',
|
|
'<%= new Boolean %>': 'false',
|
|
'<%= typeof a %>': 'number',
|
|
'<%= void a %>': ''
|
|
},
|
|
function(value, key) {
|
|
var compiled = _.template(key),
|
|
data = { 'a': 1, 'b': 2 };
|
|
|
|
equal(compiled(data), value, key);
|
|
});
|
|
});
|
|
|
|
test('should allow referencing variables declared in "evaluate" delimiters from other delimiters', function() {
|
|
var compiled = _.template('<% var b = a; %><%= b.value %>'),
|
|
data = { 'a': { 'value': 1 } };
|
|
|
|
equal(compiled(data), '1');
|
|
});
|
|
|
|
test('should work when passing `options.variable`', function() {
|
|
var compiled = _.template(
|
|
'<% _.forEach( data.a, function( value ) { %>' +
|
|
'<%= value.valueOf() %>' +
|
|
'<% }) %>', null, { 'variable': 'data' }
|
|
);
|
|
|
|
var data = { 'a': [1, 2, 3] };
|
|
|
|
try {
|
|
equal(compiled(data), '123');
|
|
} catch(e) {
|
|
ok(false);
|
|
}
|
|
});
|
|
|
|
test('should not error with IE conditional comments enabled (test with development build)', function() {
|
|
var compiled = _.template(''),
|
|
pass = true;
|
|
|
|
/*@cc_on @*/
|
|
try {
|
|
compiled();
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
ok(pass);
|
|
});
|
|
|
|
test('should tokenize delimiters', function() {
|
|
var compiled = _.template('<span class="icon-<%= type %>2"></span>'),
|
|
data = { 'type': 1 };
|
|
|
|
equal(compiled(data), '<span class="icon-12"></span>');
|
|
});
|
|
|
|
test('should work with "interpolate" delimiters containing ternary operators', function() {
|
|
var compiled = _.template('<%= value ? value : "b" %>'),
|
|
data = { 'value': 'a' };
|
|
|
|
equal(compiled(data), 'a');
|
|
});
|
|
|
|
test('should work with "interpolate" delimiters containing global values', function() {
|
|
var compiled = _.template('<%= typeof Math.abs %>');
|
|
|
|
try {
|
|
var actual = compiled();
|
|
} catch(e) { }
|
|
|
|
equal(actual, 'function');
|
|
});
|
|
|
|
test('should parse delimiters with newlines', function() {
|
|
var expected = '<<\nprint("<p>" + (value ? "yes" : "no") + "</p>")\n>>',
|
|
compiled = _.template(expected, null, { 'evaluate': /<<(.+?)>>/g }),
|
|
data = { 'value': true };
|
|
|
|
equal(compiled(data), expected);
|
|
});
|
|
|
|
test('should parse ES6 template delimiters', function() {
|
|
var data = { 'value': 2 };
|
|
equal(_.template('1${value}3', data), '123');
|
|
equal(_.template('${"{" + value + "\\}"}', data), '{2}');
|
|
});
|
|
|
|
test('supports the "imports" option', function() {
|
|
var options = { 'imports': { 'a': 1 } },
|
|
compiled = _.template('<%= a %>', null, options);
|
|
|
|
equal(compiled({}), '1');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.throttle');
|
|
|
|
(function() {
|
|
test('subsequent calls should return the result of the first call', function() {
|
|
var throttled = _.throttle(function(value) { return value; }, 32),
|
|
result = [throttled('x'), throttled('y')];
|
|
|
|
deepEqual(result, ['x', 'x']);
|
|
});
|
|
|
|
test('should clear timeout when `func` is called', function() {
|
|
var callCount = 0,
|
|
dateCount = 0;
|
|
|
|
var lodash = _.runInContext(_.extend({}, window, {
|
|
'Date': function() {
|
|
return ++dateCount < 3 ? new Date : Object(Infinity);
|
|
}
|
|
}));
|
|
|
|
var throttled = lodash.throttle(function() {
|
|
callCount++;
|
|
}, 32);
|
|
|
|
throttled();
|
|
throttled();
|
|
throttled();
|
|
|
|
equal(callCount, 2);
|
|
});
|
|
|
|
asyncTest('supports recursive calls', function() {
|
|
var count = 0;
|
|
var throttled = _.throttle(function() {
|
|
count++;
|
|
if (count < 10) {
|
|
throttled();
|
|
}
|
|
}, 32);
|
|
|
|
throttled();
|
|
equal(count, 1);
|
|
|
|
setTimeout(function() {
|
|
ok(count < 3)
|
|
QUnit.start();
|
|
}, 32);
|
|
});
|
|
|
|
asyncTest('should not trigger a trailing call when invoked once', function() {
|
|
var count = 0,
|
|
throttled = _.throttle(function() { count++; }, 32);
|
|
|
|
throttled();
|
|
equal(count, 1);
|
|
|
|
setTimeout(function() {
|
|
equal(count, 1);
|
|
QUnit.start();
|
|
}, 96);
|
|
});
|
|
|
|
asyncTest('should trigger trailing call when invoked repeatedly', function() {
|
|
var count = 0,
|
|
limit = 48,
|
|
throttled = _.throttle(function() { count++; }, 32),
|
|
start = new Date;
|
|
|
|
while ((new Date - start) < limit) {
|
|
throttled();
|
|
}
|
|
var lastCount = count;
|
|
ok(lastCount > 1);
|
|
|
|
setTimeout(function() {
|
|
ok(count > lastCount);
|
|
QUnit.start();
|
|
}, 96);
|
|
});
|
|
|
|
asyncTest('should apply default options correctly', function() {
|
|
var count = 0;
|
|
|
|
var throttled = _.throttle(function(value) {
|
|
count++;
|
|
return value;
|
|
}, 32, {});
|
|
|
|
_.times(2, function() {
|
|
equal(throttled('x'), 'x');
|
|
});
|
|
|
|
setTimeout(function() {
|
|
strictEqual(count, 2);
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
test('should work with `leading` option', function() {
|
|
_.each([true, { 'leading': true }], function(options) {
|
|
var withLeading = _.throttle(_.identity, 32, options);
|
|
equal(withLeading('x'), 'x');
|
|
});
|
|
|
|
_.each([false, { 'leading': false }], function(options) {
|
|
var withoutLeading = _.throttle(_.identity, 32, options);
|
|
strictEqual(withoutLeading('x'), undefined);
|
|
});
|
|
});
|
|
|
|
asyncTest('should work with `trailing` option', function() {
|
|
var withCount = 0,
|
|
withoutCount = 0;
|
|
|
|
var withTrailing = _.throttle(function(value) {
|
|
withCount++;
|
|
return value;
|
|
}, 32, { 'trailing': true });
|
|
|
|
var withoutTrailing = _.throttle(function(value) {
|
|
withoutCount++;
|
|
return value;
|
|
}, 32, { 'trailing': false });
|
|
|
|
_.times(2, function() {
|
|
equal(withTrailing('x'), 'x');
|
|
equal(withoutTrailing('x'), 'x');
|
|
});
|
|
|
|
setTimeout(function() {
|
|
equal(withCount, 2);
|
|
strictEqual(withoutCount, 1);
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
asyncTest('should not update `lastCalled`, at the end of the timeout, when `trailing` is `false`', function() {
|
|
var count = 0;
|
|
|
|
var throttled = _.throttle(function() {
|
|
count++;
|
|
}, 64, { 'trailing': false });
|
|
|
|
_.times(2, throttled);
|
|
setTimeout(function() { _.times(2, throttled); }, 100);
|
|
|
|
setTimeout(function() {
|
|
equal(count, 2);
|
|
QUnit.start();
|
|
}, 128);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.toArray');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should return a dense array', function() {
|
|
var array = Array(3);
|
|
array[1] = 2;
|
|
|
|
var actual = _.toArray(array);
|
|
|
|
ok(0 in actual);
|
|
ok(2 in actual);
|
|
deepEqual(actual, array);
|
|
});
|
|
|
|
test('should treat array-like objects like arrays', function() {
|
|
var object = { '0': 'a', '1': 'b', '2': 'c', 'length': 3 };
|
|
deepEqual(_.toArray(object), ['a', 'b', 'c']);
|
|
deepEqual(_.toArray(args), [1, 2, 3]);
|
|
});
|
|
|
|
test('should work with a string for `collection` (test in Opera < 10.52)', function() {
|
|
deepEqual(_.toArray('abc'), ['a', 'b', 'c']);
|
|
deepEqual(_.toArray(Object('abc')), ['a', 'b', 'c']);
|
|
});
|
|
|
|
test('should work with a node list for `collection` (test in IE < 9)', function() {
|
|
if (document) {
|
|
try {
|
|
var nodeList = document.getElementsByTagName('body'),
|
|
actual = _.toArray(nodeList);
|
|
} catch(e) { }
|
|
deepEqual(actual, [body]);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.times');
|
|
|
|
(function() {
|
|
test('should return an array of the results of each `callback` execution', function() {
|
|
deepEqual(_.times(3, function(n) { return n * 2; }), [0, 2, 4]);
|
|
});
|
|
|
|
test('should coerce `n` to a number', function() {
|
|
deepEqual(_.times(null), []);
|
|
});
|
|
|
|
test('should not error on negative `n` values', function() {
|
|
var pass = true;
|
|
try {
|
|
_.times(-1);
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
ok(pass);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.unescape');
|
|
|
|
(function() {
|
|
var escaped = '&<>"'\/',
|
|
unescaped = '&<>"\'\/';
|
|
|
|
test('should unescape entities in the correct order', function() {
|
|
equal(_.unescape('&lt;'), '<');
|
|
});
|
|
|
|
test('should unescape the proper entities', function() {
|
|
equal(_.unescape(escaped), unescaped);
|
|
});
|
|
|
|
test('should unescape the same characters escaped by `_.escape`', function() {
|
|
equal(_.unescape(_.escape(unescaped)), unescaped);
|
|
});
|
|
|
|
test('should return an empty string when passed `null` or `undefined`', function() {
|
|
equal(_.unescape(null), '');
|
|
equal(_.unescape(undefined), '');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.union');
|
|
|
|
(function() {
|
|
test('should produce correct results when passed a falsey `array` argument', function() {
|
|
var expected = [1, 2, 3],
|
|
actual = _.union(null, expected);
|
|
|
|
deepEqual(actual, expected);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.uniq');
|
|
|
|
(function() {
|
|
test('supports the `thisArg` argument', function() {
|
|
var actual = _.uniq([1, 2, 1.5, 3, 2.5], function(num) {
|
|
return this.floor(num);
|
|
}, Math);
|
|
|
|
deepEqual(actual, [1, 2, 3]);
|
|
});
|
|
|
|
test('should perform an unsorted uniq operation when used as `callback` for `_.map`', function() {
|
|
var array = [[2, 1, 2], [1, 2, 1]],
|
|
actual = _.map(array, _.uniq);
|
|
|
|
deepEqual(actual, [[2, 1], [1, 2]]);
|
|
});
|
|
|
|
test('should distinguish between numbers and numeric strings', function() {
|
|
var array = [],
|
|
expected = ['2', 2, Object('2'), Object(2)];
|
|
|
|
_.times(50, function() {
|
|
array.push.apply(array, expected);
|
|
});
|
|
|
|
deepEqual(_.uniq(expected), expected);
|
|
});
|
|
|
|
_.each({
|
|
'an object': ['a'],
|
|
'a number': 0,
|
|
'a string': '0'
|
|
},
|
|
function(callback, key) {
|
|
test('should work with ' + key + ' for `callback`', function() {
|
|
var actual = _.uniq([['a'], ['b'], ['a']], callback);
|
|
deepEqual(actual, [['a'], ['b']]);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.uniqueId');
|
|
|
|
(function() {
|
|
test('should return a string value when not passing a prefix argument', function() {
|
|
equal(typeof _.uniqueId(), 'string');
|
|
});
|
|
|
|
test('should coerce the prefix argument to a string', function() {
|
|
var actual = [_.uniqueId(3), _.uniqueId(2), _.uniqueId(1)];
|
|
ok(/3\d+,2\d+,1\d+/.test(actual));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.unzip');
|
|
|
|
(function() {
|
|
var object = {
|
|
'an empty array': [
|
|
[],
|
|
[]
|
|
],
|
|
'0-tuples': [
|
|
[[], []],
|
|
[]
|
|
],
|
|
'1-tuples': [
|
|
[['moe'], ['larry']],
|
|
[['moe', 'larry']]
|
|
],
|
|
'2-tuples': [
|
|
[['moe', 30], ['larry', 40]],
|
|
[['moe', 'larry'], [30, 40]]
|
|
],
|
|
'3-tuples': [
|
|
[['moe', 30, true], ['larry', 40, false]],
|
|
[['moe', 'larry'], [30, 40], [true, false]]
|
|
]
|
|
};
|
|
|
|
_.forOwn(object, function(pair, key) {
|
|
test('should work with ' + key, function() {
|
|
var actual = _.unzip(pair[0]);
|
|
deepEqual(actual, pair[1]);
|
|
deepEqual(_.zip.apply(_, actual), pair[1].length ? pair[0] : pair[1]);
|
|
});
|
|
});
|
|
|
|
test('should work with tuples of different lengths', function() {
|
|
var pair = [
|
|
[['moe', 30], ['larry', 40, false]],
|
|
[['moe', 'larry'], [30, 40], [undefined, false]]
|
|
];
|
|
|
|
var actual = _.unzip(pair[0]);
|
|
ok(1 in actual);
|
|
deepEqual(actual, pair[1]);
|
|
|
|
actual = _.zip.apply(_, actual);
|
|
ok(2 in actual[0]);
|
|
deepEqual(actual, [['moe', 30, undefined], ['larry', 40, false]]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.where');
|
|
|
|
(function() {
|
|
var array = [
|
|
{ 'a': 1 },
|
|
{ 'a': 1 },
|
|
{ 'a': 1, 'b': 2 },
|
|
{ 'a': 2, 'b': 2 },
|
|
{ 'a': 3 }
|
|
];
|
|
|
|
test('should filter by properties', function() {
|
|
deepEqual(_.where(array, { 'a': 1 }), [{ 'a': 1 }, { 'a': 1 }, { 'a': 1, 'b': 2 }]);
|
|
deepEqual(_.where(array, { 'a': 2 }), [{ 'a': 2, 'b': 2 }]);
|
|
deepEqual(_.where(array, { 'a': 3 }), [{ 'a': 3 }]);
|
|
deepEqual(_.where(array, { 'b': 1 }), []);
|
|
deepEqual(_.where(array, { 'b': 2 }), [{ 'a': 1, 'b': 2 }, { 'a': 2, 'b': 2 }]);
|
|
deepEqual(_.where(array, { 'a': 1, 'b': 2 }), [{ 'a': 1, 'b': 2 }]);
|
|
});
|
|
|
|
test('should not filter by inherited properties', function() {
|
|
function Foo() {}
|
|
Foo.prototype = { 'a': 2 };
|
|
|
|
var properties = new Foo;
|
|
properties.b = 2;
|
|
deepEqual(_.where(array, properties), [{ 'a': 1, 'b': 2 }, { 'a': 2, 'b': 2 }]);
|
|
});
|
|
|
|
test('should filter by problem JScript properties (test in IE < 9)', function() {
|
|
var collection = [shadowedObject];
|
|
deepEqual(_.where(collection, shadowedObject), [shadowedObject]);
|
|
});
|
|
|
|
test('should work with an object for `collection`', function() {
|
|
var collection = {
|
|
'x': { 'a': 1 },
|
|
'y': { 'a': 3 },
|
|
'z': { 'a': 1, 'b': 2 }
|
|
};
|
|
|
|
deepEqual(_.where(collection, { 'a': 1 }), [{ 'a': 1 }, { 'a': 1, 'b': 2 }]);
|
|
});
|
|
|
|
test('should return an empty array when passed an empty `properties` object', function() {
|
|
deepEqual(_.where(array, {}), []);
|
|
});
|
|
|
|
test('should deep compare `properties` values', function() {
|
|
var collection = [{ 'a': { 'b': { 'c': 1, 'd': 2 }, 'e': 3 }, 'f': 4 }],
|
|
expected = _.cloneDeep(collection);
|
|
|
|
deepEqual(_.where(collection, { 'a': { 'b': { 'c': 1 } } }), expected);
|
|
});
|
|
|
|
test('should search of arrays for values', function() {
|
|
var collection = [{ 'a': [1, 2] }],
|
|
expected = _.cloneDeep(collection);
|
|
|
|
deepEqual(_.where(collection, { 'a': [] }), []);
|
|
deepEqual(_.where(collection, { 'a': [2] }), expected);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...).shift');
|
|
|
|
(function() {
|
|
test('should remove the value at index `0` when length is `0` (test in IE 8 compatibility mode)', function() {
|
|
var wrapped = _({ '0': 1, 'length': 1 });
|
|
wrapped.shift();
|
|
|
|
deepEqual(wrapped.keys().value(), ['length']);
|
|
equal(wrapped.first(), undefined);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...).splice');
|
|
|
|
(function() {
|
|
test('should remove the value at index `0` when length is `0` (test in IE < 9, and in compatibility mode for IE9)', function() {
|
|
var wrapped = _({ '0': 1, 'length': 1 });
|
|
wrapped.splice(0, 1);
|
|
|
|
deepEqual(wrapped.keys().value(), ['length']);
|
|
equal(wrapped.first(), undefined);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...).toString');
|
|
|
|
(function() {
|
|
test('should return the `toString` result of the wrapped value', function() {
|
|
var wrapped = _([1, 2, 3]);
|
|
equal(String(wrapped), '1,2,3');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...).valueOf');
|
|
|
|
(function() {
|
|
test('should return the `valueOf` result of the wrapped value', function() {
|
|
var wrapped = _(123);
|
|
equal(Number(wrapped), 123);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...) methods that return wrapped values');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3],
|
|
wrapped = _(array);
|
|
|
|
var funcs = [
|
|
'concat',
|
|
'splice'
|
|
];
|
|
|
|
_.each(funcs, function(methodName) {
|
|
test('_.' + methodName + ' should return a wrapped value', function() {
|
|
ok(wrapped[methodName]() instanceof _);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...) methods that return unwrapped values');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3],
|
|
wrapped = _(array);
|
|
|
|
var funcs = [
|
|
'clone',
|
|
'contains',
|
|
'every',
|
|
'find',
|
|
'first',
|
|
'has',
|
|
'isArguments',
|
|
'isArray',
|
|
'isBoolean',
|
|
'isDate',
|
|
'isElement',
|
|
'isEmpty',
|
|
'isEqual',
|
|
'isFinite',
|
|
'isFunction',
|
|
'isNaN',
|
|
'isNull',
|
|
'isNumber',
|
|
'isObject',
|
|
'isPlainObject',
|
|
'isRegExp',
|
|
'isString',
|
|
'isUndefined',
|
|
'join',
|
|
'last',
|
|
'pop',
|
|
'shift',
|
|
'reduce',
|
|
'reduceRight',
|
|
'some'
|
|
];
|
|
|
|
_.each(funcs, function(methodName) {
|
|
test('_.' + methodName + ' should return an unwrapped value', function() {
|
|
var result = methodName == 'reduceRight'
|
|
? wrapped[methodName](_.identity)
|
|
: wrapped[methodName]();
|
|
|
|
equal(result instanceof _, false);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash(...) methods capable of returning wrapped and unwrapped values');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3],
|
|
wrapped = _(array);
|
|
|
|
var funcs = [
|
|
'first',
|
|
'last'
|
|
];
|
|
|
|
_.each(funcs, function(methodName) {
|
|
test('_.' + methodName + ' should return an unwrapped value', function() {
|
|
equal(typeof wrapped[methodName](), 'number');
|
|
});
|
|
|
|
test('_.' + methodName + ' should return a wrapped value', function() {
|
|
ok(wrapped[methodName](1) instanceof _);
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('"Arrays" category methods');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should work with `arguments` objects', function() {
|
|
function message(methodName) {
|
|
return '_.' + methodName + ' should work with `arguments` objects';
|
|
}
|
|
|
|
deepEqual(_.compact(args), [1, [3], 5], message('compact'));
|
|
deepEqual(_.difference(args, [null]), [1, [3], 5], message('difference'));
|
|
deepEqual(_.findIndex(args, _.identity), 0, message('findIndex'));
|
|
deepEqual(_.first(args), 1, message('first'));
|
|
deepEqual(_.flatten(args), [1, null, 3, null, 5], message('flatten'));
|
|
deepEqual(_.indexOf(args, 5), 4, message('indexOf'));
|
|
deepEqual(_.initial(args, 4), [1], message('initial'));
|
|
deepEqual(_.intersection(args, [1]), [1], message('intersection'));
|
|
deepEqual(_.last(args), 5, message('last'));
|
|
deepEqual(_.lastIndexOf(args, 1), 0, message('lastIndexOf'));
|
|
deepEqual(_.rest(args, 4), [5], message('rest'));
|
|
deepEqual(_.sortedIndex(args, 6), 5, message('sortedIndex'));
|
|
deepEqual(_.union(args, [null, 6]), [1, null, [3], 5, 6], message('union'));
|
|
deepEqual(_.uniq(args), [1, null, [3], 5], message('uniq'));
|
|
deepEqual(_.without(args, null), [1, [3], 5], message('without'));
|
|
deepEqual(_.zip(args, args), [[1, 1], [null, null], [[3], [3]], [null, null], [5, 5]], message('zip'));
|
|
});
|
|
}(1, null, [3], null, 5));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash methods');
|
|
|
|
(function() {
|
|
test('should allow falsey arguments', function() {
|
|
var isExported = '_' in window,
|
|
oldDash = window._;
|
|
|
|
var returnArrays = [
|
|
'at',
|
|
'compact',
|
|
'difference',
|
|
'filter',
|
|
'flatten',
|
|
'functions',
|
|
'initial',
|
|
'intersection',
|
|
'invoke',
|
|
'keys',
|
|
'map',
|
|
'pairs',
|
|
'pluck',
|
|
'range',
|
|
'reject',
|
|
'rest',
|
|
'shuffle',
|
|
'sortBy',
|
|
'times',
|
|
'toArray',
|
|
'union',
|
|
'uniq',
|
|
'values',
|
|
'where',
|
|
'without',
|
|
'zip'
|
|
];
|
|
|
|
var allMethods = _.reject(_.functions(_), function(methodName) {
|
|
return /^_/.test(methodName);
|
|
});
|
|
|
|
var funcs = _.without.apply(_, [allMethods].concat([
|
|
'after',
|
|
'bind',
|
|
'bindAll',
|
|
'compose',
|
|
'debounce',
|
|
'defer',
|
|
'delay',
|
|
'functions',
|
|
'memoize',
|
|
'once',
|
|
'partial',
|
|
'partialRight',
|
|
'tap',
|
|
'throttle',
|
|
'wrap'
|
|
]));
|
|
|
|
_.each(funcs, function(methodName) {
|
|
var actual = [],
|
|
expected = _.map(falsey, function() { return []; }),
|
|
func = _[methodName],
|
|
pass = true;
|
|
|
|
_.each(falsey, function(value, index) {
|
|
try {
|
|
actual.push(index ? func(value) : func());
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
});
|
|
|
|
if (methodName == 'noConflict') {
|
|
if (isExported) {
|
|
window._ = oldDash;
|
|
} else {
|
|
delete window._;
|
|
}
|
|
}
|
|
if (_.indexOf(returnArrays, methodName) > -1) {
|
|
deepEqual(actual, expected, '_.' + methodName + ' returns an array');
|
|
}
|
|
ok(pass, '_.' + methodName + ' allows falsey arguments');
|
|
});
|
|
});
|
|
|
|
test('should handle `null` `thisArg` arguments', function() {
|
|
var thisArg,
|
|
array = ['a'],
|
|
callback = function() { thisArg = this; },
|
|
expected = (function() { return this; }).call(null);
|
|
|
|
var funcs = [
|
|
'countBy',
|
|
'every',
|
|
'filter',
|
|
'find',
|
|
'forEach',
|
|
'forIn',
|
|
'forOwn',
|
|
'groupBy',
|
|
'map',
|
|
'max',
|
|
'min',
|
|
'omit',
|
|
'pick',
|
|
'reduce',
|
|
'reduceRight',
|
|
'reject',
|
|
'some',
|
|
'sortBy',
|
|
'sortedIndex',
|
|
'times',
|
|
'uniq'
|
|
];
|
|
|
|
_.each(funcs, function(methodName) {
|
|
var func = _[methodName],
|
|
message = '_.' + methodName + ' handles `null` `thisArg` arguments';
|
|
|
|
thisArg = undefined;
|
|
|
|
if (/^reduce/.test(methodName)) {
|
|
func(array, callback, 0, null);
|
|
} else if (methodName == 'sortedIndex') {
|
|
func(array, 'a', callback, null);
|
|
} else if (methodName == 'times') {
|
|
func(1, callback, null);
|
|
} else {
|
|
func(array, callback, null);
|
|
}
|
|
|
|
if (expected === null) {
|
|
strictEqual(thisArg, null, message);
|
|
} else {
|
|
equal(thisArg, expected, message);
|
|
}
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// configure QUnit and call `QUnit.start()` for
|
|
// Narwhal, Node.js, PhantomJS, Rhino, and RingoJS
|
|
if (!document || phantom) {
|
|
QUnit.config.noglobals = true;
|
|
QUnit.start();
|
|
}
|
|
}(typeof global == 'object' && global || this));
|