mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-31 15:27:50 +00:00
2264 lines
62 KiB
JavaScript
2264 lines
62 KiB
JavaScript
;(function(window, undefined) {
|
|
'use strict';
|
|
|
|
/** Use a single load function */
|
|
var load = typeof require == 'function' ? require : window.load;
|
|
|
|
/** The `platform` object to check */
|
|
var platform =
|
|
window.platform ||
|
|
load('../vendor/platform.js/platform.js') ||
|
|
window.platform;
|
|
|
|
/** The unit testing framework */
|
|
var QUnit =
|
|
window.QUnit || (
|
|
window.setTimeout || (window.addEventListener = window.setTimeout = / /),
|
|
window.QUnit = load('../vendor/qunit/qunit/qunit' + (platform.name == 'Narwhal' ? '-1.8.0' : '') + '.js') || window.QUnit,
|
|
load('../vendor/qunit-clib/qunit-clib.js'),
|
|
(window.addEventListener || 0).test && delete window.addEventListener,
|
|
window.QUnit
|
|
);
|
|
|
|
/** The `lodash` function to test */
|
|
var _ =
|
|
window._ || (
|
|
_ = load('../lodash.js') || window._,
|
|
_._ || _
|
|
);
|
|
|
|
/** Used to pass falsey values to methods */
|
|
var falsey = [
|
|
,
|
|
'',
|
|
0,
|
|
false,
|
|
NaN,
|
|
null,
|
|
undefined
|
|
];
|
|
|
|
/** Shortcut used to make object properties immutable */
|
|
var freeze = Object.freeze;
|
|
|
|
/** Used to set property descriptors */
|
|
var setDescriptor = (function(fn) {
|
|
try {
|
|
var o = {};
|
|
return fn(o, o, o) && fn;
|
|
} catch(e) { }
|
|
}(Object.defineProperty));
|
|
|
|
/** Shortcut used to convert array-like objects to arrays */
|
|
var slice = [].slice;
|
|
|
|
/** Used to check problem JScript properties (a.k.a. the [[DontEnum]] bug) */
|
|
var shadowed = {
|
|
'constructor': 1,
|
|
'hasOwnProperty': 2,
|
|
'isPrototypeOf': 3,
|
|
'propertyIsEnumerable': 4,
|
|
'toLocaleString': 5,
|
|
'toString': 6,
|
|
'valueOf': 7
|
|
};
|
|
|
|
/** Used to check problem JScript properties too */
|
|
var shadowedKeys = [
|
|
'constructor',
|
|
'hasOwnProperty',
|
|
'isPrototypeOf',
|
|
'propertyIsEnumerable',
|
|
'toLocaleString',
|
|
'toString',
|
|
'valueOf'
|
|
];
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Skips a given number of tests with a passing result.
|
|
*
|
|
* @private
|
|
* @param {Number} [count=1] The number of tests to skip.
|
|
*/
|
|
function skipTest(count) {
|
|
count || (count = 1);
|
|
while (count--) {
|
|
ok(true, 'test skipped');
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// add object from iframe
|
|
(function() {
|
|
if (!window.document) {
|
|
return;
|
|
}
|
|
var body = document.body,
|
|
iframe = document.createElement('iframe');
|
|
|
|
iframe.frameBorder = iframe.height = iframe.width = 0;
|
|
body.appendChild(iframe);
|
|
var idoc = (idoc = iframe.contentDocument || iframe.contentWindow).document || idoc;
|
|
idoc.write("<script>parent._._object = { 'a': 1, 'b': 2, 'c': 3 };<\/script>");
|
|
idoc.close();
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// explicitly call `QUnit.module()` instead of `module()`
|
|
// in case we are in a CLI environment
|
|
QUnit.module('lodash');
|
|
|
|
(function() {
|
|
test('supports loading lodash.js as the "lodash" module', function() {
|
|
if (window.document && window.require) {
|
|
equal((lodashModule || {}).moduleName, 'lodash');
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
|
|
test('supports loading lodash.js with the Require.js "shim" configuration option', function() {
|
|
if (window.document && window.require) {
|
|
equal((shimmedModule || {}).moduleName, 'shimmed');
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
|
|
test('supports loading lodash.js as the "underscore" module', function() {
|
|
if (window.document && window.require) {
|
|
equal((underscoreModule || {}).moduleName, 'underscore');
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
|
|
test('avoids overwritten native methods', function() {
|
|
if (window.document) {
|
|
notDeepEqual(lodashBadShim.keys({ 'a': 1 }), []);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash constructor');
|
|
|
|
(function() {
|
|
test('creates a new instance when called without the `new` operator', function() {
|
|
ok(_() instanceof _);
|
|
});
|
|
|
|
test('should return passed LoDash instances', function() {
|
|
var wrapped = _([]);
|
|
equal(_(wrapped), wrapped);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.assign');
|
|
|
|
(function() {
|
|
test('should not error on `null` or `undefined` sources (test in IE < 9)', function() {
|
|
try {
|
|
deepEqual(_.assign({}, null, undefined, { 'a': 1 }), { 'a': 1 });
|
|
} catch(e) {
|
|
ok(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.c = 3;
|
|
|
|
Foo.a = 1;
|
|
Foo.b = 2;
|
|
|
|
var expected = { 'a': 1, 'b': 2 };
|
|
deepEqual(_.assign({}, Foo), expected);
|
|
|
|
Foo.prototype = { 'c': 3 };
|
|
deepEqual(_.assign({}, Foo), expected);
|
|
});
|
|
|
|
test('should work with `_.reduce`', function() {
|
|
var actual = { 'a': 1},
|
|
array = [{ 'b': 2 }, { 'c': 3 }];
|
|
|
|
_.reduce(array, _.assign, actual);
|
|
deepEqual(actual, { 'a': 1, 'b': 2, 'c': 3});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.bind');
|
|
|
|
(function() {
|
|
test('should append array arguments to partially applied arguments (test in IE < 9)', function() {
|
|
var args,
|
|
bound = _.bind(function() { args = slice.call(arguments); }, {}, 'a');
|
|
|
|
bound(['b'], 'c');
|
|
deepEqual(args, ['a', ['b'], 'c']);
|
|
});
|
|
|
|
test('ensure `new bound` is an instance of `func`', function() {
|
|
var func = function() {},
|
|
bound = _.bind(func, {});
|
|
|
|
ok(new bound instanceof func);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.bindKey');
|
|
|
|
(function() {
|
|
test('should work when the target function is overwritten', function() {
|
|
var object = {
|
|
'name': 'moe',
|
|
'greet': function(greeting) {
|
|
return greeting + ': ' + this.name;
|
|
}
|
|
};
|
|
|
|
var func = _.bindKey(object, 'greet', 'hi');
|
|
equal(func(), 'hi: moe');
|
|
|
|
object.greet = function(greeting) {
|
|
return greeting + ' ' + this.name + '!';
|
|
};
|
|
equal(func(), 'hi moe!');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.clone');
|
|
|
|
(function() {
|
|
function Klass() { this.a = 1; }
|
|
Klass.prototype = { 'b': 1 };
|
|
|
|
var nonCloneable = {
|
|
'an element': window.document && document.body,
|
|
'a function': Klass
|
|
};
|
|
|
|
var objects = {
|
|
'an arguments object': arguments,
|
|
'an array': ['a', 'b', 'c', ''],
|
|
'an array-like-object': { '0': 'a', '1': 'b', '2': 'c', '3': '', 'length': 5 },
|
|
'boolean': false,
|
|
'boolean object': Object(false),
|
|
'a Klass instance': new Klass,
|
|
'an object': { 'a': 0, 'b': 1, 'c': 3 },
|
|
'an object with object values': { 'a': /a/, 'b': ['B'], 'c': { 'C': 1 } },
|
|
'an object from another document': _._object || {},
|
|
'null': null,
|
|
'a number': 3,
|
|
'a number object': Object(3),
|
|
'a regexp': /a/gim,
|
|
'a string': 'a',
|
|
'a string object': Object('a'),
|
|
'undefined': undefined
|
|
};
|
|
|
|
objects['an array'].length = 5;
|
|
|
|
_.forOwn(objects, function(object, key) {
|
|
test('should deep clone ' + key, function() {
|
|
var clone = _.clone(object, true);
|
|
ok(_.isEqual(object, clone));
|
|
|
|
if (_.isObject(object)) {
|
|
notStrictEqual(clone, object);
|
|
} else {
|
|
skipTest();
|
|
}
|
|
});
|
|
});
|
|
|
|
_.forOwn(nonCloneable, function(object, key) {
|
|
test('should not clone ' + key, function() {
|
|
strictEqual(_.clone(object), object);
|
|
strictEqual(_.clone(object, true), object);
|
|
});
|
|
});
|
|
|
|
test('should shallow clone when used as `callback` for `_.map`', function() {
|
|
var expected = [{ 'a': [0] }, { 'b': [1] }],
|
|
actual = _.map(expected, _.clone);
|
|
|
|
ok(actual != expected && actual.a == expected.a && actual.b == expected.b);
|
|
});
|
|
|
|
test('should deep clone `index` and `input` array properties', function() {
|
|
var array = /x/.exec('x'),
|
|
actual = _.clone(array, true);
|
|
|
|
equal(actual.index, 0);
|
|
equal(actual.input, 'x');
|
|
});
|
|
|
|
test('should deep clone objects with circular references', function() {
|
|
var object = {
|
|
'foo': { 'b': { 'foo': { 'c': { } } } },
|
|
'bar': { }
|
|
};
|
|
|
|
object.foo.b.foo.c = object;
|
|
object.bar.b = object.foo.b;
|
|
|
|
var clone = _.clone(object, true);
|
|
ok(clone.bar.b === clone.foo.b && clone === clone.foo.b.foo.c && clone !== object);
|
|
});
|
|
|
|
test('should clone problem JScript properties (test in IE < 9)', function() {
|
|
deepEqual(_.clone(shadowed), shadowed);
|
|
notEqual(_.clone(shadowed), shadowed);
|
|
deepEqual(_.clone(shadowed, true), shadowed);
|
|
notEqual(_.clone(shadowed, true), shadowed);
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.contains');
|
|
|
|
(function() {
|
|
_.each({
|
|
'an array': [1, 2, 3, 1, 2, 3],
|
|
'an object': { 'a': 1, 'b': 2, 'c': 3, 'd': 1, 'e': 2, 'f': 3 },
|
|
'a string': '123123'
|
|
},
|
|
function(collection, key) {
|
|
test('should work with ' + key + ' and a positive `fromIndex`', function() {
|
|
ok(_.contains(collection, 1, 2));
|
|
});
|
|
|
|
test('should work with ' + key + ' and a `fromIndex` >= collection\'s length', function() {
|
|
equal(_.contains(collection, 1, 6), false);
|
|
equal(_.contains(collection, undefined, 6), false);
|
|
equal(_.contains(collection, 1, 8), false);
|
|
equal(_.contains(collection, undefined, 8), false);
|
|
});
|
|
|
|
test('should work with ' + key + ' and a negative `fromIndex`', function() {
|
|
ok(_.contains(collection, 2, -3));
|
|
});
|
|
|
|
test('should work with ' + key + ' and a negative `fromIndex` <= negative collection\'s length', function() {
|
|
ok(_.contains(collection, 1, -6));
|
|
ok(_.contains(collection, 2, -8));
|
|
});
|
|
});
|
|
|
|
_.each({
|
|
'literal': 'abc',
|
|
'object': Object('abc')
|
|
},
|
|
function(collection, key) {
|
|
test('should work with a string ' + key + ' for `collection`', function() {
|
|
ok(_.contains(collection, 'bc'));
|
|
ok(!_.contains(collection, 'd'));
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.countBy');
|
|
|
|
(function() {
|
|
test('should only add values to own, not inherited, properties', function() {
|
|
var actual = _.countBy([4.2, 6.1, 6.4], function(num) {
|
|
return Math.floor(num) > 4 ? 'hasOwnProperty' : 'constructor';
|
|
});
|
|
|
|
equal(actual.constructor, 1);
|
|
equal(actual.hasOwnProperty, 2);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.debounce');
|
|
|
|
(function() {
|
|
asyncTest('subsequent debounced calls return the last `func` result', function() {
|
|
var debounced = _.debounce(function(value) { return value; }, 90);
|
|
debounced('x');
|
|
|
|
setTimeout(function() {
|
|
equal(debounced('y'), 'x');
|
|
QUnit.start();
|
|
}, 120);
|
|
});
|
|
|
|
test('subsequent "immediate" debounced calls return the last `func` result', function() {
|
|
var debounced = _.debounce(function(value) { return value; }, 90, true),
|
|
result = [debounced('x'), debounced('y')];
|
|
|
|
deepEqual(result, ['x', 'x']);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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 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() {
|
|
ok(!_.every([true, null, true], _.identity));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('source property checks');
|
|
|
|
_.each(['assign', 'defaults'], 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), {});
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.find');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3];
|
|
|
|
test('should return found `value`', function() {
|
|
equal(_.find(array, function(n) { return n > 2; }), 3);
|
|
});
|
|
|
|
test('should return `undefined` if `value` is not found', function() {
|
|
equal(_.find(array, function(n) { return n == 4; }), undefined);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.flatten');
|
|
|
|
(function() {
|
|
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('returns the collection', function() {
|
|
var collection = [1, 2, 3];
|
|
equal(_.forEach(collection, Boolean), collection);
|
|
});
|
|
|
|
_.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 Dog(name) { this.name = name; }
|
|
Dog.prototype.bark = function() { /* Woof, woof! */ };
|
|
|
|
var keys = [];
|
|
_.forIn(new Dog('Dagny'), function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), ['bark', 'name']);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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('object 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(shadowed, function(value, key) { keys.push(key); });
|
|
deepEqual(keys.sort(), shadowedKeys);
|
|
});
|
|
|
|
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('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('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] });
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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() {
|
|
equal(_.indexOf(array, 1, -6), 0);
|
|
equal(_.indexOf(array, 2, -8), 1);
|
|
});
|
|
|
|
test('should ignore non-number `fromIndex` values', function() {
|
|
equal(_.indexOf([1, 2, 3], 1, '1'), 0);
|
|
});
|
|
|
|
test('should work with `isSorted`', function() {
|
|
equal(_.indexOf([1, 2, 3], 1, true), 0);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.initial');
|
|
|
|
(function() {
|
|
test('returns a full collection for `n` of `0`', function() {
|
|
var array = [1, 2, 3];
|
|
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, []);
|
|
})
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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 = window.document ? document.body : { 'nodeType': 1 };
|
|
ok(_.isElement(element));
|
|
|
|
equal(_.isElement({ 'nodeType': new Number(1) }), false);
|
|
equal(_.isElement({ 'nodeType': true }), false);
|
|
equal(_.isElement({ 'nodeType': [1] }), false);
|
|
equal(_.isElement({ 'nodeType': '1' }), false);
|
|
equal(_.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(shadowed), 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;
|
|
ok(_.isEmpty(Foo));
|
|
|
|
Foo.prototype = { 'a': 1 };
|
|
ok(_.isEmpty(Foo));
|
|
});
|
|
|
|
test('should work with an object that has a `length` property', function() {
|
|
ok(!_.isEmpty({ 'length': 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 };
|
|
|
|
ok(_.isEmpty(new Foo([])));
|
|
});
|
|
|
|
test('should work with `arguments` objects (test in IE < 9)', function() {
|
|
equal(_.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));
|
|
|
|
ok(_.isEqual(args1, args2));
|
|
ok(!_.isEqual(args1, args3));
|
|
});
|
|
|
|
test('fixes the JScript [[DontEnum]] bug (test in IE < 9)', function() {
|
|
equal(_.isEqual(shadowed, {}), 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 };
|
|
ok(_.isEqual(object, _._object));
|
|
}
|
|
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;
|
|
equal(_.isEqual(array1, array2), false);
|
|
|
|
object1.b = object1;
|
|
equal(_.isEqual(object1, object2), false);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isFinite');
|
|
|
|
(function() {
|
|
test('should return `false` for non-numeric values', function() {
|
|
ok(!_.isFinite(null));
|
|
ok(!_.isFinite([]));
|
|
ok(!_.isFinite(true));
|
|
ok(!_.isFinite(''));
|
|
ok(!_.isFinite(' '));
|
|
ok(!_.isFinite('2px'));
|
|
});
|
|
|
|
test('should return `true` for numeric string values', function() {
|
|
ok(_.isFinite('2'));
|
|
ok(_.isFinite('0'));
|
|
ok(_.isFinite('08'));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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() {
|
|
ok(_.isNaN(new Number(NaN)));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.isPlainObject');
|
|
|
|
(function() {
|
|
test('should detect plain objects', function() {
|
|
function Foo(a) {
|
|
this.a = 1;
|
|
}
|
|
|
|
ok(!_.isPlainObject(new Foo(1)));
|
|
ok(!_.isPlainObject([1, 2, 3]));
|
|
ok(_.isPlainObject({ 'a': 1 }));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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(window.document && document.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);
|
|
});
|
|
});
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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(shadowed).sort(), shadowedKeys);
|
|
});
|
|
|
|
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.lastIndexOf');
|
|
|
|
(function() {
|
|
var array = [1, 2, 3, 1, 2, 3];
|
|
|
|
test('should work with a positive `fromIndex`', function() {
|
|
equal(_.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() {
|
|
equal(_.lastIndexOf(array, 2, -3), 1);
|
|
});
|
|
|
|
test('should work with a negative `fromIndex` <= `-array.length`', function() {
|
|
equal(_.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.merge');
|
|
|
|
(function() {
|
|
var args = arguments;
|
|
|
|
test('should merge `source` into the destination object', function() {
|
|
var stooges = [
|
|
{ 'name': 'moe' },
|
|
{ 'name': 'larry' }
|
|
];
|
|
|
|
var ages = [
|
|
{ 'age': 40 },
|
|
{ 'age': 50 }
|
|
];
|
|
|
|
var heights = [
|
|
{ 'height': '5\'4"' },
|
|
{ 'height': '5\'5"' },
|
|
];
|
|
|
|
var expected = [
|
|
{ 'name': 'moe', 'age': 40, 'height': '5\'4"' },
|
|
{ 'name': 'larry', 'age': 50, 'height': '5\'5"' }
|
|
];
|
|
|
|
deepEqual(_.merge(stooges, 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 merge problem JScript properties (test in IE < 9)', function() {
|
|
var object = [{
|
|
'constructor': 1,
|
|
'hasOwnProperty': 2,
|
|
'isPrototypeOf': 3
|
|
}];
|
|
|
|
var source = [{
|
|
'propertyIsEnumerable': 4,
|
|
'toLocaleString': 5,
|
|
'toString': 6,
|
|
'valueOf': 7
|
|
}];
|
|
|
|
deepEqual(_.merge(object, source), [shadowed]);
|
|
});
|
|
|
|
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 work with `_.reduce`', function() {
|
|
var actual = { 'a': 1},
|
|
array = [{ 'b': 2 }, { 'c': 3 }];
|
|
|
|
_.reduce(array, _.merge, actual);
|
|
deepEqual(actual, { 'a': 1, 'b': 2, 'c': 3});
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.omit');
|
|
|
|
(function() {
|
|
var object = { 'a': 1, 'b': 2 },
|
|
actual = { 'b': 2 };
|
|
|
|
test('should accept individual property names', function() {
|
|
deepEqual(_.omit(object, 'a'), actual);
|
|
});
|
|
|
|
test('should accept an array of property names', function() {
|
|
deepEqual(_.omit(object, ['a', 'c']), actual);
|
|
});
|
|
|
|
test('should accept mixes of individual and arrays of property names', function() {
|
|
deepEqual(_.omit(object, ['a'], 'c'), actual);
|
|
});
|
|
|
|
test('should iterate over inherited properties', function() {
|
|
function Foo() {}
|
|
Foo.prototype = object;
|
|
|
|
deepEqual(_.omit(new Foo, 'a'), actual);
|
|
});
|
|
|
|
test('should work with a `callback` argument', function() {
|
|
var actual = _.omit(object, function(value) {
|
|
return value == 1;
|
|
});
|
|
|
|
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];
|
|
|
|
_.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, { 'b': 2 });
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.partial');
|
|
|
|
(function() {
|
|
test('partially applies an argument, without additional arguments', function() {
|
|
var arg = 'catnip',
|
|
func = function(x) { return x; };
|
|
|
|
equal(_.partial(func, arg)(), arg);
|
|
});
|
|
|
|
test('partially applies an argument, with additional arguments', function() {
|
|
var arg1 = 'catnip',
|
|
arg2 = 'cheese',
|
|
func = function(x, y) { return [x, y]; };
|
|
|
|
deepEqual(_.partial(func, arg1)(arg2), [arg1, arg2]);
|
|
});
|
|
|
|
test('works without partially applying arguments, without additional arguments', function() {
|
|
var func = function() { return arguments.length; };
|
|
|
|
equal(_.partial(func)(), 0);
|
|
});
|
|
|
|
test('works without partially applying arguments, with additional arguments', function() {
|
|
var arg = 'catnip',
|
|
func = function(x) { return x; };
|
|
|
|
equal(_.partial(func)(arg), arg);
|
|
});
|
|
|
|
test('should not alter the `this` binding of either function', function() {
|
|
var object = { 'cat': 'nip' },
|
|
func = function() { return this.cat; };
|
|
|
|
equal(_.partial(_.bind(func, object))(), object.cat);
|
|
equal(_.bind(_.partial(func), object)(), object.cat);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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 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);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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.rest');
|
|
|
|
(function() {
|
|
test('should allow a falsey `array` argument', function() {
|
|
_.each(falsey, function(index, value) {
|
|
try {
|
|
var actual = index ? _.rest(value) : _.rest();
|
|
} catch(e) { }
|
|
deepEqual(actual, []);
|
|
})
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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 detect the size of a string value', function() {
|
|
equal(_.size('abc'), 3);
|
|
});
|
|
|
|
test('should allow a falsey `object` argument', function() {
|
|
_.each(falsey, function(index, value) {
|
|
try {
|
|
var actual = index ? _.size(value) : _.size();
|
|
} catch(e) { }
|
|
equal(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(shadowed), 7);
|
|
});
|
|
}(1, 2, 3));
|
|
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.some');
|
|
|
|
(function() {
|
|
test('should return `true` as soon as the `callback` result is truthy', function() {
|
|
ok(_.some([null, true, null], _.identity));
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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);
|
|
|
|
equal(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.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>');
|
|
equal(compiled({ 'type': 1 }), '<span class="icon-12"></span>');
|
|
});
|
|
|
|
test('should work with "interpolate" delimiters containing ternary operators', function() {
|
|
var compiled = _.template('<%= value ? value : "b" %>');
|
|
equal(compiled({ 'value': 'a' }), 'a');
|
|
});
|
|
|
|
test('should parse delimiters with newlines', function() {
|
|
var expected = '<<\nprint("<p>" + (value ? "yes" : "no") + "</p>")\n>>',
|
|
compiled = _.template(expected, null, { 'evaluate': /<<(.+?)>>/g });
|
|
|
|
equal(compiled({ 'value': true }), expected);
|
|
});
|
|
|
|
test('should parse ES6 template delimiters', function() {
|
|
var data = { 'value': 2 };
|
|
equal(_.template('1${value}3', data), '123');
|
|
equal(_.template('${"{" + value + "\\}"}', data), '{2}');
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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']);
|
|
});
|
|
|
|
asyncTest('supports recursive calls', function() {
|
|
var counter = 0;
|
|
var throttled = _.throttle(function() {
|
|
counter++;
|
|
if (counter < 4) {
|
|
throttled();
|
|
}
|
|
}, 90);
|
|
|
|
setTimeout(function() {
|
|
ok(counter > 1);
|
|
QUnit.start();
|
|
}, 180);
|
|
|
|
throttled();
|
|
});
|
|
|
|
asyncTest('should clear timeout when `func` is called', function() {
|
|
var now = new Date,
|
|
times = [];
|
|
|
|
var throttled = _.throttle(function() {
|
|
times.push(new Date - now);
|
|
}, 32);
|
|
|
|
setTimeout(throttled, 32);
|
|
setTimeout(throttled, 32);
|
|
setTimeout(throttled, 64);
|
|
setTimeout(throttled, 64);
|
|
|
|
setTimeout(function() {
|
|
var actual = _.every(times, function(value, index) {
|
|
return index
|
|
? (value - times[index - 1]) > 2
|
|
: true;
|
|
});
|
|
|
|
ok(actual);
|
|
QUnit.start();
|
|
}, 260);
|
|
});
|
|
|
|
asyncTest('should not trigger a trailing call when invoked once', function() {
|
|
var counter = 0,
|
|
throttled = _.throttle(function() { counter++; }, 32);
|
|
|
|
throttled();
|
|
equal(counter, 1);
|
|
|
|
setTimeout(function() {
|
|
equal(counter, 1);
|
|
QUnit.start();
|
|
}, 64);
|
|
});
|
|
|
|
asyncTest('should trigger trailing call when invoked repeatedly', function() {
|
|
var actual,
|
|
counter = 0,
|
|
limit = 80,
|
|
throttled = _.throttle(function() { counter++; }, 32),
|
|
start = new Date;
|
|
|
|
while ((new Date - start) < limit) {
|
|
throttled();
|
|
}
|
|
setTimeout(function() {
|
|
actual = counter + 2;
|
|
throttled();
|
|
throttled();
|
|
}, 64);
|
|
|
|
setTimeout(function() {
|
|
equal(counter, actual);
|
|
QUnit.start();
|
|
}, 128);
|
|
|
|
ok(counter > 1);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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 (window.document) {
|
|
try {
|
|
var nodeList = document.getElementsByTagName('body'),
|
|
body = nodeList[0],
|
|
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]);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
QUnit.module('lodash.unescape');
|
|
|
|
(function() {
|
|
var escaped = '<h1>Moe's famous "death by chocolate" brownies & cake<\/h1>',
|
|
unescaped = '<h1>Moe\'s famous "death by chocolate" brownies & cake<\/h1>';
|
|
|
|
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.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 distinguish between numbers and numeric strings', function() {
|
|
var expected = ['2', 2, Object('2'), Object(2)],
|
|
actual = _.uniq(expected);
|
|
|
|
deepEqual(actual, expected);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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.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 = [shadowed];
|
|
deepEqual(_.where(collection, shadowed), [shadowed]);
|
|
});
|
|
|
|
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, {}), []);
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
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('lodash methods');
|
|
|
|
(function() {
|
|
test('should allow falsey arguments', function() {
|
|
var returnArrays = [
|
|
'filter',
|
|
'invoke',
|
|
'map',
|
|
'pluck',
|
|
'reject',
|
|
'shuffle',
|
|
'sortBy',
|
|
'toArray',
|
|
'where'
|
|
];
|
|
|
|
var funcs = _.without.apply(_, [_.functions(_)].concat([
|
|
'_',
|
|
'_iteratorTemplate',
|
|
'after',
|
|
'bind',
|
|
'bindAll',
|
|
'compose',
|
|
'debounce',
|
|
'defer',
|
|
'delay',
|
|
'functions',
|
|
'memoize',
|
|
'once',
|
|
'partial',
|
|
'tap',
|
|
'throttle',
|
|
'wrap'
|
|
]));
|
|
|
|
_.each(funcs, function(methodName) {
|
|
var actual = [],
|
|
expected = _.times(falsey.length, function() { return []; }),
|
|
func = _[methodName],
|
|
pass = true;
|
|
|
|
_.each(falsey, function(value, index) {
|
|
try {
|
|
actual.push(index ? func(value) : func());
|
|
} catch(e) {
|
|
pass = false;
|
|
}
|
|
});
|
|
|
|
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);
|
|
}
|
|
});
|
|
});
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// explicitly call `QUnit.start()` for Narwhal, Rhino, and RingoJS
|
|
if (!window.document) {
|
|
QUnit.start();
|
|
}
|
|
}(typeof global == 'object' && global || this));
|