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Diffstat (limited to 'ecomp-portal-FE/client/bower_components/lodash/vendor/underscore/test/objects.js')
-rw-r--r-- | ecomp-portal-FE/client/bower_components/lodash/vendor/underscore/test/objects.js | 1102 |
1 files changed, 1102 insertions, 0 deletions
diff --git a/ecomp-portal-FE/client/bower_components/lodash/vendor/underscore/test/objects.js b/ecomp-portal-FE/client/bower_components/lodash/vendor/underscore/test/objects.js new file mode 100644 index 00000000..fa1d9e3e --- /dev/null +++ b/ecomp-portal-FE/client/bower_components/lodash/vendor/underscore/test/objects.js @@ -0,0 +1,1102 @@ +(function() { + var _ = typeof require == 'function' ? require('..') : window._; + + QUnit.module('Objects'); + + var testElement = typeof document === 'object' ? document.createElement('div') : void 0; + + QUnit.test('keys', function(assert) { + assert.deepEqual(_.keys({one: 1, two: 2}), ['one', 'two'], 'can extract the keys from an object'); + // the test above is not safe because it relies on for-in enumeration order + var a = []; a[1] = 0; + assert.deepEqual(_.keys(a), ['1'], 'is not fooled by sparse arrays; see issue #95'); + assert.deepEqual(_.keys(null), []); + assert.deepEqual(_.keys(void 0), []); + assert.deepEqual(_.keys(1), []); + assert.deepEqual(_.keys('a'), []); + assert.deepEqual(_.keys(true), []); + + // keys that may be missed if the implementation isn't careful + var trouble = { + constructor: Object, + valueOf: _.noop, + hasOwnProperty: null, + toString: 5, + toLocaleString: void 0, + propertyIsEnumerable: /a/, + isPrototypeOf: this, + __defineGetter__: Boolean, + __defineSetter__: {}, + __lookupSetter__: false, + __lookupGetter__: [] + }; + var troubleKeys = ['constructor', 'valueOf', 'hasOwnProperty', 'toString', 'toLocaleString', 'propertyIsEnumerable', + 'isPrototypeOf', '__defineGetter__', '__defineSetter__', '__lookupSetter__', '__lookupGetter__'].sort(); + assert.deepEqual(_.keys(trouble).sort(), troubleKeys, 'matches non-enumerable properties'); + }); + + QUnit.test('allKeys', function(assert) { + assert.deepEqual(_.allKeys({one: 1, two: 2}), ['one', 'two'], 'can extract the allKeys from an object'); + // the test above is not safe because it relies on for-in enumeration order + var a = []; a[1] = 0; + assert.deepEqual(_.allKeys(a), ['1'], 'is not fooled by sparse arrays; see issue #95'); + + a.a = a; + assert.deepEqual(_.allKeys(a), ['1', 'a'], 'is not fooled by sparse arrays with additional properties'); + + _.each([null, void 0, 1, 'a', true, NaN, {}, [], new Number(5), new Date(0)], function(val) { + assert.deepEqual(_.allKeys(val), []); + }); + + // allKeys that may be missed if the implementation isn't careful + var trouble = { + constructor: Object, + valueOf: _.noop, + hasOwnProperty: null, + toString: 5, + toLocaleString: void 0, + propertyIsEnumerable: /a/, + isPrototypeOf: this + }; + var troubleKeys = ['constructor', 'valueOf', 'hasOwnProperty', 'toString', 'toLocaleString', 'propertyIsEnumerable', + 'isPrototypeOf'].sort(); + assert.deepEqual(_.allKeys(trouble).sort(), troubleKeys, 'matches non-enumerable properties'); + + function A() {} + A.prototype.foo = 'foo'; + var b = new A(); + b.bar = 'bar'; + assert.deepEqual(_.allKeys(b).sort(), ['bar', 'foo'], 'should include inherited keys'); + + function y() {} + y.x = 'z'; + assert.deepEqual(_.allKeys(y), ['x'], 'should get keys from constructor'); + }); + + QUnit.test('values', function(assert) { + assert.deepEqual(_.values({one: 1, two: 2}), [1, 2], 'can extract the values from an object'); + assert.deepEqual(_.values({one: 1, two: 2, length: 3}), [1, 2, 3], '... even when one of them is "length"'); + }); + + QUnit.test('pairs', function(assert) { + assert.deepEqual(_.pairs({one: 1, two: 2}), [['one', 1], ['two', 2]], 'can convert an object into pairs'); + assert.deepEqual(_.pairs({one: 1, two: 2, length: 3}), [['one', 1], ['two', 2], ['length', 3]], '... even when one of them is "length"'); + }); + + QUnit.test('invert', function(assert) { + var obj = {first: 'Moe', second: 'Larry', third: 'Curly'}; + assert.deepEqual(_.keys(_.invert(obj)), ['Moe', 'Larry', 'Curly'], 'can invert an object'); + assert.deepEqual(_.invert(_.invert(obj)), obj, 'two inverts gets you back where you started'); + + obj = {length: 3}; + assert.equal(_.invert(obj)['3'], 'length', 'can invert an object with "length"'); + }); + + QUnit.test('functions', function(assert) { + var obj = {a: 'dash', b: _.map, c: /yo/, d: _.reduce}; + assert.deepEqual(['b', 'd'], _.functions(obj), 'can grab the function names of any passed-in object'); + + var Animal = function(){}; + Animal.prototype.run = function(){}; + assert.deepEqual(_.functions(new Animal), ['run'], 'also looks up functions on the prototype'); + }); + + QUnit.test('methods', function(assert) { + assert.strictEqual(_.methods, _.functions, 'is an alias for functions'); + }); + + QUnit.test('extend', function(assert) { + var result; + assert.equal(_.extend({}, {a: 'b'}).a, 'b', 'can extend an object with the attributes of another'); + assert.equal(_.extend({a: 'x'}, {a: 'b'}).a, 'b', 'properties in source override destination'); + assert.equal(_.extend({x: 'x'}, {a: 'b'}).x, 'x', "properties not in source don't get overriden"); + result = _.extend({x: 'x'}, {a: 'a'}, {b: 'b'}); + assert.deepEqual(result, {x: 'x', a: 'a', b: 'b'}, 'can extend from multiple source objects'); + result = _.extend({x: 'x'}, {a: 'a', x: 2}, {a: 'b'}); + assert.deepEqual(result, {x: 2, a: 'b'}, 'extending from multiple source objects last property trumps'); + result = _.extend({}, {a: void 0, b: null}); + assert.deepEqual(_.keys(result), ['a', 'b'], 'extend copies undefined values'); + + var F = function() {}; + F.prototype = {a: 'b'}; + var subObj = new F(); + subObj.c = 'd'; + assert.deepEqual(_.extend({}, subObj), {a: 'b', c: 'd'}, 'extend copies all properties from source'); + _.extend(subObj, {}); + assert.ok(!subObj.hasOwnProperty('a'), "extend does not convert destination object's 'in' properties to 'own' properties"); + + try { + result = {}; + _.extend(result, null, void 0, {a: 1}); + } catch (e) { /* ignored */ } + + assert.equal(result.a, 1, 'should not error on `null` or `undefined` sources'); + + assert.strictEqual(_.extend(null, {a: 1}), null, 'extending null results in null'); + assert.strictEqual(_.extend(void 0, {a: 1}), void 0, 'extending undefined results in undefined'); + }); + + QUnit.test('extendOwn', function(assert) { + var result; + assert.equal(_.extendOwn({}, {a: 'b'}).a, 'b', 'can extend an object with the attributes of another'); + assert.equal(_.extendOwn({a: 'x'}, {a: 'b'}).a, 'b', 'properties in source override destination'); + assert.equal(_.extendOwn({x: 'x'}, {a: 'b'}).x, 'x', "properties not in source don't get overriden"); + result = _.extendOwn({x: 'x'}, {a: 'a'}, {b: 'b'}); + assert.deepEqual(result, {x: 'x', a: 'a', b: 'b'}, 'can extend from multiple source objects'); + result = _.extendOwn({x: 'x'}, {a: 'a', x: 2}, {a: 'b'}); + assert.deepEqual(result, {x: 2, a: 'b'}, 'extending from multiple source objects last property trumps'); + assert.deepEqual(_.extendOwn({}, {a: void 0, b: null}), {a: void 0, b: null}, 'copies undefined values'); + + var F = function() {}; + F.prototype = {a: 'b'}; + var subObj = new F(); + subObj.c = 'd'; + assert.deepEqual(_.extendOwn({}, subObj), {c: 'd'}, 'copies own properties from source'); + + result = {}; + assert.deepEqual(_.extendOwn(result, null, void 0, {a: 1}), {a: 1}, 'should not error on `null` or `undefined` sources'); + + _.each(['a', 5, null, false], function(val) { + assert.strictEqual(_.extendOwn(val, {a: 1}), val, 'extending non-objects results in returning the non-object value'); + }); + + assert.strictEqual(_.extendOwn(void 0, {a: 1}), void 0, 'extending undefined results in undefined'); + + result = _.extendOwn({a: 1, 0: 2, 1: '5', length: 6}, {0: 1, 1: 2, length: 2}); + assert.deepEqual(result, {a: 1, 0: 1, 1: 2, length: 2}, 'should treat array-like objects like normal objects'); + }); + + QUnit.test('assign', function(assert) { + assert.strictEqual(_.assign, _.extendOwn, 'is an alias for extendOwn'); + }); + + QUnit.test('pick', function(assert) { + var result; + result = _.pick({a: 1, b: 2, c: 3}, 'a', 'c'); + assert.deepEqual(result, {a: 1, c: 3}, 'can restrict properties to those named'); + result = _.pick({a: 1, b: 2, c: 3}, ['b', 'c']); + assert.deepEqual(result, {b: 2, c: 3}, 'can restrict properties to those named in an array'); + result = _.pick({a: 1, b: 2, c: 3}, ['a'], 'b'); + assert.deepEqual(result, {a: 1, b: 2}, 'can restrict properties to those named in mixed args'); + result = _.pick(['a', 'b'], 1); + assert.deepEqual(result, {1: 'b'}, 'can pick numeric properties'); + + _.each([null, void 0], function(val) { + assert.deepEqual(_.pick(val, 'hasOwnProperty'), {}, 'Called with null/undefined'); + assert.deepEqual(_.pick(val, _.constant(true)), {}); + }); + assert.deepEqual(_.pick(5, 'toString', 'b'), {toString: Number.prototype.toString}, 'can iterate primitives'); + + var data = {a: 1, b: 2, c: 3}; + var callback = function(value, key, object) { + assert.strictEqual(key, {1: 'a', 2: 'b', 3: 'c'}[value]); + assert.strictEqual(object, data); + return value !== this.value; + }; + result = _.pick(data, callback, {value: 2}); + assert.deepEqual(result, {a: 1, c: 3}, 'can accept a predicate and context'); + + var Obj = function(){}; + Obj.prototype = {a: 1, b: 2, c: 3}; + var instance = new Obj(); + assert.deepEqual(_.pick(instance, 'a', 'c'), {a: 1, c: 3}, 'include prototype props'); + + assert.deepEqual(_.pick(data, function(val, key) { + return this[key] === 3 && this === instance; + }, instance), {c: 3}, 'function is given context'); + + assert.ok(!_.has(_.pick({}, 'foo'), 'foo'), 'does not set own property if property not in object'); + _.pick(data, function(value, key, obj) { + assert.equal(obj, data, 'passes same object as third parameter of iteratee'); + }); + }); + + QUnit.test('omit', function(assert) { + var result; + result = _.omit({a: 1, b: 2, c: 3}, 'b'); + assert.deepEqual(result, {a: 1, c: 3}, 'can omit a single named property'); + result = _.omit({a: 1, b: 2, c: 3}, 'a', 'c'); + assert.deepEqual(result, {b: 2}, 'can omit several named properties'); + result = _.omit({a: 1, b: 2, c: 3}, ['b', 'c']); + assert.deepEqual(result, {a: 1}, 'can omit properties named in an array'); + result = _.omit(['a', 'b'], 0); + assert.deepEqual(result, {1: 'b'}, 'can omit numeric properties'); + + assert.deepEqual(_.omit(null, 'a', 'b'), {}, 'non objects return empty object'); + assert.deepEqual(_.omit(void 0, 'toString'), {}, 'null/undefined return empty object'); + assert.deepEqual(_.omit(5, 'toString', 'b'), {}, 'returns empty object for primitives'); + + var data = {a: 1, b: 2, c: 3}; + var callback = function(value, key, object) { + assert.strictEqual(key, {1: 'a', 2: 'b', 3: 'c'}[value]); + assert.strictEqual(object, data); + return value !== this.value; + }; + result = _.omit(data, callback, {value: 2}); + assert.deepEqual(result, {b: 2}, 'can accept a predicate'); + + var Obj = function(){}; + Obj.prototype = {a: 1, b: 2, c: 3}; + var instance = new Obj(); + assert.deepEqual(_.omit(instance, 'b'), {a: 1, c: 3}, 'include prototype props'); + + assert.deepEqual(_.omit(data, function(val, key) { + return this[key] === 3 && this === instance; + }, instance), {a: 1, b: 2}, 'function is given context'); + }); + + QUnit.test('defaults', function(assert) { + var options = {zero: 0, one: 1, empty: '', nan: NaN, nothing: null}; + + _.defaults(options, {zero: 1, one: 10, twenty: 20, nothing: 'str'}); + assert.equal(options.zero, 0, 'value exists'); + assert.equal(options.one, 1, 'value exists'); + assert.equal(options.twenty, 20, 'default applied'); + assert.equal(options.nothing, null, "null isn't overridden"); + + _.defaults(options, {empty: 'full'}, {nan: 'nan'}, {word: 'word'}, {word: 'dog'}); + assert.equal(options.empty, '', 'value exists'); + assert.ok(_.isNaN(options.nan), "NaN isn't overridden"); + assert.equal(options.word, 'word', 'new value is added, first one wins'); + + try { + options = {}; + _.defaults(options, null, void 0, {a: 1}); + } catch (e) { /* ignored */ } + + assert.equal(options.a, 1, 'should not error on `null` or `undefined` sources'); + + assert.deepEqual(_.defaults(null, {a: 1}), {a: 1}, 'defaults skips nulls'); + assert.deepEqual(_.defaults(void 0, {a: 1}), {a: 1}, 'defaults skips undefined'); + }); + + QUnit.test('clone', function(assert) { + var moe = {name: 'moe', lucky: [13, 27, 34]}; + var clone = _.clone(moe); + assert.equal(clone.name, 'moe', 'the clone as the attributes of the original'); + + clone.name = 'curly'; + assert.ok(clone.name === 'curly' && moe.name === 'moe', 'clones can change shallow attributes without affecting the original'); + + clone.lucky.push(101); + assert.equal(_.last(moe.lucky), 101, 'changes to deep attributes are shared with the original'); + + assert.equal(_.clone(void 0), void 0, 'non objects should not be changed by clone'); + assert.equal(_.clone(1), 1, 'non objects should not be changed by clone'); + assert.equal(_.clone(null), null, 'non objects should not be changed by clone'); + }); + + QUnit.test('create', function(assert) { + var Parent = function() {}; + Parent.prototype = {foo: function() {}, bar: 2}; + + _.each(['foo', null, void 0, 1], function(val) { + assert.deepEqual(_.create(val), {}, 'should return empty object when a non-object is provided'); + }); + + assert.ok(_.create([]) instanceof Array, 'should return new instance of array when array is provided'); + + var Child = function() {}; + Child.prototype = _.create(Parent.prototype); + assert.ok(new Child instanceof Parent, 'object should inherit prototype'); + + var func = function() {}; + Child.prototype = _.create(Parent.prototype, {func: func}); + assert.strictEqual(Child.prototype.func, func, 'properties should be added to object'); + + Child.prototype = _.create(Parent.prototype, {constructor: Child}); + assert.strictEqual(Child.prototype.constructor, Child); + + Child.prototype.foo = 'foo'; + var created = _.create(Child.prototype, new Child); + assert.ok(!created.hasOwnProperty('foo'), 'should only add own properties'); + }); + + QUnit.test('isEqual', function(assert) { + function First() { + this.value = 1; + } + First.prototype.value = 1; + function Second() { + this.value = 1; + } + Second.prototype.value = 2; + + // Basic equality and identity comparisons. + assert.ok(_.isEqual(null, null), '`null` is equal to `null`'); + assert.ok(_.isEqual(), '`undefined` is equal to `undefined`'); + + assert.ok(!_.isEqual(0, -0), '`0` is not equal to `-0`'); + assert.ok(!_.isEqual(-0, 0), 'Commutative equality is implemented for `0` and `-0`'); + assert.ok(!_.isEqual(null, void 0), '`null` is not equal to `undefined`'); + assert.ok(!_.isEqual(void 0, null), 'Commutative equality is implemented for `null` and `undefined`'); + + // String object and primitive comparisons. + assert.ok(_.isEqual('Curly', 'Curly'), 'Identical string primitives are equal'); + assert.ok(_.isEqual(new String('Curly'), new String('Curly')), 'String objects with identical primitive values are equal'); + assert.ok(_.isEqual(new String('Curly'), 'Curly'), 'String primitives and their corresponding object wrappers are equal'); + assert.ok(_.isEqual('Curly', new String('Curly')), 'Commutative equality is implemented for string objects and primitives'); + + assert.ok(!_.isEqual('Curly', 'Larry'), 'String primitives with different values are not equal'); + assert.ok(!_.isEqual(new String('Curly'), new String('Larry')), 'String objects with different primitive values are not equal'); + assert.ok(!_.isEqual(new String('Curly'), {toString: function(){ return 'Curly'; }}), 'String objects and objects with a custom `toString` method are not equal'); + + // Number object and primitive comparisons. + assert.ok(_.isEqual(75, 75), 'Identical number primitives are equal'); + assert.ok(_.isEqual(new Number(75), new Number(75)), 'Number objects with identical primitive values are equal'); + assert.ok(_.isEqual(75, new Number(75)), 'Number primitives and their corresponding object wrappers are equal'); + assert.ok(_.isEqual(new Number(75), 75), 'Commutative equality is implemented for number objects and primitives'); + assert.ok(!_.isEqual(new Number(0), -0), '`new Number(0)` and `-0` are not equal'); + assert.ok(!_.isEqual(0, new Number(-0)), 'Commutative equality is implemented for `new Number(0)` and `-0`'); + + assert.ok(!_.isEqual(new Number(75), new Number(63)), 'Number objects with different primitive values are not equal'); + assert.ok(!_.isEqual(new Number(63), {valueOf: function(){ return 63; }}), 'Number objects and objects with a `valueOf` method are not equal'); + + // Comparisons involving `NaN`. + assert.ok(_.isEqual(NaN, NaN), '`NaN` is equal to `NaN`'); + assert.ok(_.isEqual(new Number(NaN), NaN), 'Object(`NaN`) is equal to `NaN`'); + assert.ok(!_.isEqual(61, NaN), 'A number primitive is not equal to `NaN`'); + assert.ok(!_.isEqual(new Number(79), NaN), 'A number object is not equal to `NaN`'); + assert.ok(!_.isEqual(Infinity, NaN), '`Infinity` is not equal to `NaN`'); + + // Boolean object and primitive comparisons. + assert.ok(_.isEqual(true, true), 'Identical boolean primitives are equal'); + assert.ok(_.isEqual(new Boolean, new Boolean), 'Boolean objects with identical primitive values are equal'); + assert.ok(_.isEqual(true, new Boolean(true)), 'Boolean primitives and their corresponding object wrappers are equal'); + assert.ok(_.isEqual(new Boolean(true), true), 'Commutative equality is implemented for booleans'); + assert.ok(!_.isEqual(new Boolean(true), new Boolean), 'Boolean objects with different primitive values are not equal'); + + // Common type coercions. + assert.ok(!_.isEqual(new Boolean(false), true), '`new Boolean(false)` is not equal to `true`'); + assert.ok(!_.isEqual('75', 75), 'String and number primitives with like values are not equal'); + assert.ok(!_.isEqual(new Number(63), new String(63)), 'String and number objects with like values are not equal'); + assert.ok(!_.isEqual(75, '75'), 'Commutative equality is implemented for like string and number values'); + assert.ok(!_.isEqual(0, ''), 'Number and string primitives with like values are not equal'); + assert.ok(!_.isEqual(1, true), 'Number and boolean primitives with like values are not equal'); + assert.ok(!_.isEqual(new Boolean(false), new Number(0)), 'Boolean and number objects with like values are not equal'); + assert.ok(!_.isEqual(false, new String('')), 'Boolean primitives and string objects with like values are not equal'); + assert.ok(!_.isEqual(12564504e5, new Date(2009, 9, 25)), 'Dates and their corresponding numeric primitive values are not equal'); + + // Dates. + assert.ok(_.isEqual(new Date(2009, 9, 25), new Date(2009, 9, 25)), 'Date objects referencing identical times are equal'); + assert.ok(!_.isEqual(new Date(2009, 9, 25), new Date(2009, 11, 13)), 'Date objects referencing different times are not equal'); + assert.ok(!_.isEqual(new Date(2009, 11, 13), { + getTime: function(){ + return 12606876e5; + } + }), 'Date objects and objects with a `getTime` method are not equal'); + assert.ok(!_.isEqual(new Date('Curly'), new Date('Curly')), 'Invalid dates are not equal'); + + // Functions. + assert.ok(!_.isEqual(First, Second), 'Different functions with identical bodies and source code representations are not equal'); + + // RegExps. + assert.ok(_.isEqual(/(?:)/gim, /(?:)/gim), 'RegExps with equivalent patterns and flags are equal'); + assert.ok(_.isEqual(/(?:)/gi, /(?:)/ig), 'Flag order is not significant'); + assert.ok(!_.isEqual(/(?:)/g, /(?:)/gi), 'RegExps with equivalent patterns and different flags are not equal'); + assert.ok(!_.isEqual(/Moe/gim, /Curly/gim), 'RegExps with different patterns and equivalent flags are not equal'); + assert.ok(!_.isEqual(/(?:)/gi, /(?:)/g), 'Commutative equality is implemented for RegExps'); + assert.ok(!_.isEqual(/Curly/g, {source: 'Larry', global: true, ignoreCase: false, multiline: false}), 'RegExps and RegExp-like objects are not equal'); + + // Empty arrays, array-like objects, and object literals. + assert.ok(_.isEqual({}, {}), 'Empty object literals are equal'); + assert.ok(_.isEqual([], []), 'Empty array literals are equal'); + assert.ok(_.isEqual([{}], [{}]), 'Empty nested arrays and objects are equal'); + assert.ok(!_.isEqual({length: 0}, []), 'Array-like objects and arrays are not equal.'); + assert.ok(!_.isEqual([], {length: 0}), 'Commutative equality is implemented for array-like objects'); + + assert.ok(!_.isEqual({}, []), 'Object literals and array literals are not equal'); + assert.ok(!_.isEqual([], {}), 'Commutative equality is implemented for objects and arrays'); + + // Arrays with primitive and object values. + assert.ok(_.isEqual([1, 'Larry', true], [1, 'Larry', true]), 'Arrays containing identical primitives are equal'); + assert.ok(_.isEqual([/Moe/g, new Date(2009, 9, 25)], [/Moe/g, new Date(2009, 9, 25)]), 'Arrays containing equivalent elements are equal'); + + // Multi-dimensional arrays. + var a = [new Number(47), false, 'Larry', /Moe/, new Date(2009, 11, 13), ['running', 'biking', new String('programming')], {a: 47}]; + var b = [new Number(47), false, 'Larry', /Moe/, new Date(2009, 11, 13), ['running', 'biking', new String('programming')], {a: 47}]; + assert.ok(_.isEqual(a, b), 'Arrays containing nested arrays and objects are recursively compared'); + + // Overwrite the methods defined in ES 5.1 section 15.4.4. + a.forEach = a.map = a.filter = a.every = a.indexOf = a.lastIndexOf = a.some = a.reduce = a.reduceRight = null; + b.join = b.pop = b.reverse = b.shift = b.slice = b.splice = b.concat = b.sort = b.unshift = null; + + // Array elements and properties. + assert.ok(_.isEqual(a, b), 'Arrays containing equivalent elements and different non-numeric properties are equal'); + a.push('White Rocks'); + assert.ok(!_.isEqual(a, b), 'Arrays of different lengths are not equal'); + a.push('East Boulder'); + b.push('Gunbarrel Ranch', 'Teller Farm'); + assert.ok(!_.isEqual(a, b), 'Arrays of identical lengths containing different elements are not equal'); + + // Sparse arrays. + assert.ok(_.isEqual(Array(3), Array(3)), 'Sparse arrays of identical lengths are equal'); + assert.ok(!_.isEqual(Array(3), Array(6)), 'Sparse arrays of different lengths are not equal when both are empty'); + + var sparse = []; + sparse[1] = 5; + assert.ok(_.isEqual(sparse, [void 0, 5]), 'Handles sparse arrays as dense'); + + // Simple objects. + assert.ok(_.isEqual({a: 'Curly', b: 1, c: true}, {a: 'Curly', b: 1, c: true}), 'Objects containing identical primitives are equal'); + assert.ok(_.isEqual({a: /Curly/g, b: new Date(2009, 11, 13)}, {a: /Curly/g, b: new Date(2009, 11, 13)}), 'Objects containing equivalent members are equal'); + assert.ok(!_.isEqual({a: 63, b: 75}, {a: 61, b: 55}), 'Objects of identical sizes with different values are not equal'); + assert.ok(!_.isEqual({a: 63, b: 75}, {a: 61, c: 55}), 'Objects of identical sizes with different property names are not equal'); + assert.ok(!_.isEqual({a: 1, b: 2}, {a: 1}), 'Objects of different sizes are not equal'); + assert.ok(!_.isEqual({a: 1}, {a: 1, b: 2}), 'Commutative equality is implemented for objects'); + assert.ok(!_.isEqual({x: 1, y: void 0}, {x: 1, z: 2}), 'Objects with identical keys and different values are not equivalent'); + + // `A` contains nested objects and arrays. + a = { + name: new String('Moe Howard'), + age: new Number(77), + stooge: true, + hobbies: ['acting'], + film: { + name: 'Sing a Song of Six Pants', + release: new Date(1947, 9, 30), + stars: [new String('Larry Fine'), 'Shemp Howard'], + minutes: new Number(16), + seconds: 54 + } + }; + + // `B` contains equivalent nested objects and arrays. + b = { + name: new String('Moe Howard'), + age: new Number(77), + stooge: true, + hobbies: ['acting'], + film: { + name: 'Sing a Song of Six Pants', + release: new Date(1947, 9, 30), + stars: [new String('Larry Fine'), 'Shemp Howard'], + minutes: new Number(16), + seconds: 54 + } + }; + assert.ok(_.isEqual(a, b), 'Objects with nested equivalent members are recursively compared'); + + // Instances. + assert.ok(_.isEqual(new First, new First), 'Object instances are equal'); + assert.ok(!_.isEqual(new First, new Second), 'Objects with different constructors and identical own properties are not equal'); + assert.ok(!_.isEqual({value: 1}, new First), 'Object instances and objects sharing equivalent properties are not equal'); + assert.ok(!_.isEqual({value: 2}, new Second), 'The prototype chain of objects should not be examined'); + + // Circular Arrays. + (a = []).push(a); + (b = []).push(b); + assert.ok(_.isEqual(a, b), 'Arrays containing circular references are equal'); + a.push(new String('Larry')); + b.push(new String('Larry')); + assert.ok(_.isEqual(a, b), 'Arrays containing circular references and equivalent properties are equal'); + a.push('Shemp'); + b.push('Curly'); + assert.ok(!_.isEqual(a, b), 'Arrays containing circular references and different properties are not equal'); + + // More circular arrays #767. + a = ['everything is checked but', 'this', 'is not']; + a[1] = a; + b = ['everything is checked but', ['this', 'array'], 'is not']; + assert.ok(!_.isEqual(a, b), 'Comparison of circular references with non-circular references are not equal'); + + // Circular Objects. + a = {abc: null}; + b = {abc: null}; + a.abc = a; + b.abc = b; + assert.ok(_.isEqual(a, b), 'Objects containing circular references are equal'); + a.def = 75; + b.def = 75; + assert.ok(_.isEqual(a, b), 'Objects containing circular references and equivalent properties are equal'); + a.def = new Number(75); + b.def = new Number(63); + assert.ok(!_.isEqual(a, b), 'Objects containing circular references and different properties are not equal'); + + // More circular objects #767. + a = {everything: 'is checked', but: 'this', is: 'not'}; + a.but = a; + b = {everything: 'is checked', but: {that: 'object'}, is: 'not'}; + assert.ok(!_.isEqual(a, b), 'Comparison of circular references with non-circular object references are not equal'); + + // Cyclic Structures. + a = [{abc: null}]; + b = [{abc: null}]; + (a[0].abc = a).push(a); + (b[0].abc = b).push(b); + assert.ok(_.isEqual(a, b), 'Cyclic structures are equal'); + a[0].def = 'Larry'; + b[0].def = 'Larry'; + assert.ok(_.isEqual(a, b), 'Cyclic structures containing equivalent properties are equal'); + a[0].def = new String('Larry'); + b[0].def = new String('Curly'); + assert.ok(!_.isEqual(a, b), 'Cyclic structures containing different properties are not equal'); + + // Complex Circular References. + a = {foo: {b: {foo: {c: {foo: null}}}}}; + b = {foo: {b: {foo: {c: {foo: null}}}}}; + a.foo.b.foo.c.foo = a; + b.foo.b.foo.c.foo = b; + assert.ok(_.isEqual(a, b), 'Cyclic structures with nested and identically-named properties are equal'); + + // Chaining. + assert.ok(!_.isEqual(_({x: 1, y: void 0}).chain(), _({x: 1, z: 2}).chain()), 'Chained objects containing different values are not equal'); + + a = _({x: 1, y: 2}).chain(); + b = _({x: 1, y: 2}).chain(); + assert.equal(_.isEqual(a.isEqual(b), _(true)), true, '`isEqual` can be chained'); + + // Objects without a `constructor` property + if (Object.create) { + a = Object.create(null, {x: {value: 1, enumerable: true}}); + b = {x: 1}; + assert.ok(_.isEqual(a, b), 'Handles objects without a constructor (e.g. from Object.create'); + } + + function Foo() { this.a = 1; } + Foo.prototype.constructor = null; + + var other = {a: 1}; + assert.strictEqual(_.isEqual(new Foo, other), false, 'Objects from different constructors are not equal'); + + + // Tricky object cases val comparisions + assert.equal(_.isEqual([0], [-0]), false); + assert.equal(_.isEqual({a: 0}, {a: -0}), false); + assert.equal(_.isEqual([NaN], [NaN]), true); + assert.equal(_.isEqual({a: NaN}, {a: NaN}), true); + + if (typeof Symbol !== 'undefined') { + var symbol = Symbol('x'); + assert.strictEqual(_.isEqual(symbol, symbol), true, 'A symbol is equal to itself'); + assert.strictEqual(_.isEqual(symbol, Object(symbol)), true, 'Even when wrapped in Object()'); + assert.strictEqual(_.isEqual(symbol, null), false, 'Different types are not equal'); + } + + }); + + QUnit.test('isEmpty', function(assert) { + assert.ok(!_([1]).isEmpty(), '[1] is not empty'); + assert.ok(_.isEmpty([]), '[] is empty'); + assert.ok(!_.isEmpty({one: 1}), '{one: 1} is not empty'); + assert.ok(_.isEmpty({}), '{} is empty'); + assert.ok(_.isEmpty(new RegExp('')), 'objects with prototype properties are empty'); + assert.ok(_.isEmpty(null), 'null is empty'); + assert.ok(_.isEmpty(), 'undefined is empty'); + assert.ok(_.isEmpty(''), 'the empty string is empty'); + assert.ok(!_.isEmpty('moe'), 'but other strings are not'); + + var obj = {one: 1}; + delete obj.one; + assert.ok(_.isEmpty(obj), 'deleting all the keys from an object empties it'); + + var args = function(){ return arguments; }; + assert.ok(_.isEmpty(args()), 'empty arguments object is empty'); + assert.ok(!_.isEmpty(args('')), 'non-empty arguments object is not empty'); + + // covers collecting non-enumerable properties in IE < 9 + var nonEnumProp = {toString: 5}; + assert.ok(!_.isEmpty(nonEnumProp), 'non-enumerable property is not empty'); + }); + + if (typeof document === 'object') { + QUnit.test('isElement', function(assert) { + assert.ok(!_.isElement('div'), 'strings are not dom elements'); + assert.ok(_.isElement(testElement), 'an element is a DOM element'); + }); + } + + QUnit.test('isArguments', function(assert) { + var args = (function(){ return arguments; }(1, 2, 3)); + assert.ok(!_.isArguments('string'), 'a string is not an arguments object'); + assert.ok(!_.isArguments(_.isArguments), 'a function is not an arguments object'); + assert.ok(_.isArguments(args), 'but the arguments object is an arguments object'); + assert.ok(!_.isArguments(_.toArray(args)), 'but not when it\'s converted into an array'); + assert.ok(!_.isArguments([1, 2, 3]), 'and not vanilla arrays.'); + }); + + QUnit.test('isObject', function(assert) { + assert.ok(_.isObject(arguments), 'the arguments object is object'); + assert.ok(_.isObject([1, 2, 3]), 'and arrays'); + if (testElement) { + assert.ok(_.isObject(testElement), 'and DOM element'); + } + assert.ok(_.isObject(function() {}), 'and functions'); + assert.ok(!_.isObject(null), 'but not null'); + assert.ok(!_.isObject(void 0), 'and not undefined'); + assert.ok(!_.isObject('string'), 'and not string'); + assert.ok(!_.isObject(12), 'and not number'); + assert.ok(!_.isObject(true), 'and not boolean'); + assert.ok(_.isObject(new String('string')), 'but new String()'); + }); + + QUnit.test('isArray', function(assert) { + assert.ok(!_.isArray(void 0), 'undefined vars are not arrays'); + assert.ok(!_.isArray(arguments), 'the arguments object is not an array'); + assert.ok(_.isArray([1, 2, 3]), 'but arrays are'); + }); + + QUnit.test('isString', function(assert) { + var obj = new String('I am a string object'); + if (testElement) { + assert.ok(!_.isString(testElement), 'an element is not a string'); + } + assert.ok(_.isString([1, 2, 3].join(', ')), 'but strings are'); + assert.strictEqual(_.isString('I am a string literal'), true, 'string literals are'); + assert.ok(_.isString(obj), 'so are String objects'); + assert.strictEqual(_.isString(1), false); + }); + + QUnit.test('isSymbol', function(assert) { + assert.ok(!_.isSymbol(0), 'numbers are not symbols'); + assert.ok(!_.isSymbol(''), 'strings are not symbols'); + assert.ok(!_.isSymbol(_.isSymbol), 'functions are not symbols'); + if (typeof Symbol === 'function') { + assert.ok(_.isSymbol(Symbol()), 'symbols are symbols'); + assert.ok(_.isSymbol(Symbol('description')), 'described symbols are symbols'); + assert.ok(_.isSymbol(Object(Symbol())), 'boxed symbols are symbols'); + } + }); + + QUnit.test('isNumber', function(assert) { + assert.ok(!_.isNumber('string'), 'a string is not a number'); + assert.ok(!_.isNumber(arguments), 'the arguments object is not a number'); + assert.ok(!_.isNumber(void 0), 'undefined is not a number'); + assert.ok(_.isNumber(3 * 4 - 7 / 10), 'but numbers are'); + assert.ok(_.isNumber(NaN), 'NaN *is* a number'); + assert.ok(_.isNumber(Infinity), 'Infinity is a number'); + assert.ok(!_.isNumber('1'), 'numeric strings are not numbers'); + }); + + QUnit.test('isBoolean', function(assert) { + assert.ok(!_.isBoolean(2), 'a number is not a boolean'); + assert.ok(!_.isBoolean('string'), 'a string is not a boolean'); + assert.ok(!_.isBoolean('false'), 'the string "false" is not a boolean'); + assert.ok(!_.isBoolean('true'), 'the string "true" is not a boolean'); + assert.ok(!_.isBoolean(arguments), 'the arguments object is not a boolean'); + assert.ok(!_.isBoolean(void 0), 'undefined is not a boolean'); + assert.ok(!_.isBoolean(NaN), 'NaN is not a boolean'); + assert.ok(!_.isBoolean(null), 'null is not a boolean'); + assert.ok(_.isBoolean(true), 'but true is'); + assert.ok(_.isBoolean(false), 'and so is false'); + }); + + QUnit.test('isMap', function(assert) { + assert.ok(!_.isMap('string'), 'a string is not a map'); + assert.ok(!_.isMap(2), 'a number is not a map'); + assert.ok(!_.isMap({}), 'an object is not a map'); + assert.ok(!_.isMap(false), 'a boolean is not a map'); + assert.ok(!_.isMap(void 0), 'undefined is not a map'); + assert.ok(!_.isMap([1, 2, 3]), 'an array is not a map'); + if (typeof Set === 'function') { + assert.ok(!_.isMap(new Set()), 'a set is not a map'); + } + if (typeof WeakSet === 'function') { + assert.ok(!_.isMap(new WeakSet()), 'a weakset is not a map'); + } + if (typeof WeakMap === 'function') { + assert.ok(!_.isMap(new WeakMap()), 'a weakmap is not a map'); + } + if (typeof Map === 'function') { + var keyString = 'a string'; + var obj = new Map(); + obj.set(keyString, 'value'); + assert.ok(_.isMap(obj), 'but a map is'); + } + }); + + QUnit.test('isWeakMap', function(assert) { + assert.ok(!_.isWeakMap('string'), 'a string is not a weakmap'); + assert.ok(!_.isWeakMap(2), 'a number is not a weakmap'); + assert.ok(!_.isWeakMap({}), 'an object is not a weakmap'); + assert.ok(!_.isWeakMap(false), 'a boolean is not a weakmap'); + assert.ok(!_.isWeakMap(void 0), 'undefined is not a weakmap'); + assert.ok(!_.isWeakMap([1, 2, 3]), 'an array is not a weakmap'); + if (typeof Set === 'function') { + assert.ok(!_.isWeakMap(new Set()), 'a set is not a weakmap'); + } + if (typeof WeakSet === 'function') { + assert.ok(!_.isWeakMap(new WeakSet()), 'a weakset is not a weakmap'); + } + if (typeof Map === 'function') { + assert.ok(!_.isWeakMap(new Map()), 'a map is not a weakmap'); + } + if (typeof WeakMap === 'function') { + var keyObj = {}, obj = new WeakMap(); + obj.set(keyObj, 'value'); + assert.ok(_.isWeakMap(obj), 'but a weakmap is'); + } + }); + + QUnit.test('isSet', function(assert) { + assert.ok(!_.isSet('string'), 'a string is not a set'); + assert.ok(!_.isSet(2), 'a number is not a set'); + assert.ok(!_.isSet({}), 'an object is not a set'); + assert.ok(!_.isSet(false), 'a boolean is not a set'); + assert.ok(!_.isSet(void 0), 'undefined is not a set'); + assert.ok(!_.isSet([1, 2, 3]), 'an array is not a set'); + if (typeof Map === 'function') { + assert.ok(!_.isSet(new Map()), 'a map is not a set'); + } + if (typeof WeakMap === 'function') { + assert.ok(!_.isSet(new WeakMap()), 'a weakmap is not a set'); + } + if (typeof WeakSet === 'function') { + assert.ok(!_.isSet(new WeakSet()), 'a weakset is not a set'); + } + if (typeof Set === 'function') { + var obj = new Set(); + obj.add(1).add('string').add(false).add({}); + assert.ok(_.isSet(obj), 'but a set is'); + } + }); + + QUnit.test('isWeakSet', function(assert) { + + assert.ok(!_.isWeakSet('string'), 'a string is not a weakset'); + assert.ok(!_.isWeakSet(2), 'a number is not a weakset'); + assert.ok(!_.isWeakSet({}), 'an object is not a weakset'); + assert.ok(!_.isWeakSet(false), 'a boolean is not a weakset'); + assert.ok(!_.isWeakSet(void 0), 'undefined is not a weakset'); + assert.ok(!_.isWeakSet([1, 2, 3]), 'an array is not a weakset'); + if (typeof Map === 'function') { + assert.ok(!_.isWeakSet(new Map()), 'a map is not a weakset'); + } + if (typeof WeakMap === 'function') { + assert.ok(!_.isWeakSet(new WeakMap()), 'a weakmap is not a weakset'); + } + if (typeof Set === 'function') { + assert.ok(!_.isWeakSet(new Set()), 'a set is not a weakset'); + } + if (typeof WeakSet === 'function') { + var obj = new WeakSet(); + obj.add({x: 1}, {y: 'string'}).add({y: 'string'}).add({z: [1, 2, 3]}); + assert.ok(_.isWeakSet(obj), 'but a weakset is'); + } + }); + + QUnit.test('isFunction', function(assert) { + assert.ok(!_.isFunction(void 0), 'undefined vars are not functions'); + assert.ok(!_.isFunction([1, 2, 3]), 'arrays are not functions'); + assert.ok(!_.isFunction('moe'), 'strings are not functions'); + assert.ok(_.isFunction(_.isFunction), 'but functions are'); + assert.ok(_.isFunction(function(){}), 'even anonymous ones'); + + if (testElement) { + assert.ok(!_.isFunction(testElement), 'elements are not functions'); + } + + var nodelist = typeof document != 'undefined' && document.childNodes; + if (nodelist) { + assert.ok(!_.isFunction(nodelist)); + } + }); + + if (typeof Int8Array !== 'undefined') { + QUnit.test('#1929 Typed Array constructors are functions', function(assert) { + _.chain(['Float32Array', 'Float64Array', 'Int8Array', 'Int16Array', 'Int32Array', 'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array']) + .map(_.propertyOf(typeof GLOBAL != 'undefined' ? GLOBAL : window)) + .compact() + .each(function(TypedArray) { + // PhantomJS reports `typeof UInt8Array == 'object'` and doesn't report toString TypeArray + // as a function + assert.strictEqual(_.isFunction(TypedArray), Object.prototype.toString.call(TypedArray) === '[object Function]'); + }); + }); + } + + QUnit.test('isDate', function(assert) { + assert.ok(!_.isDate(100), 'numbers are not dates'); + assert.ok(!_.isDate({}), 'objects are not dates'); + assert.ok(_.isDate(new Date()), 'but dates are'); + }); + + QUnit.test('isRegExp', function(assert) { + assert.ok(!_.isRegExp(_.identity), 'functions are not RegExps'); + assert.ok(_.isRegExp(/identity/), 'but RegExps are'); + }); + + QUnit.test('isFinite', function(assert) { + assert.ok(!_.isFinite(void 0), 'undefined is not finite'); + assert.ok(!_.isFinite(null), 'null is not finite'); + assert.ok(!_.isFinite(NaN), 'NaN is not finite'); + assert.ok(!_.isFinite(Infinity), 'Infinity is not finite'); + assert.ok(!_.isFinite(-Infinity), '-Infinity is not finite'); + assert.ok(_.isFinite('12'), 'Numeric strings are numbers'); + assert.ok(!_.isFinite('1a'), 'Non numeric strings are not numbers'); + assert.ok(!_.isFinite(''), 'Empty strings are not numbers'); + var obj = new Number(5); + assert.ok(_.isFinite(obj), 'Number instances can be finite'); + assert.ok(_.isFinite(0), '0 is finite'); + assert.ok(_.isFinite(123), 'Ints are finite'); + assert.ok(_.isFinite(-12.44), 'Floats are finite'); + if (typeof Symbol === 'function') { + assert.ok(!_.isFinite(Symbol()), 'symbols are not numbers'); + assert.ok(!_.isFinite(Symbol('description')), 'described symbols are not numbers'); + assert.ok(!_.isFinite(Object(Symbol())), 'boxed symbols are not numbers'); + } + }); + + QUnit.test('isNaN', function(assert) { + assert.ok(!_.isNaN(void 0), 'undefined is not NaN'); + assert.ok(!_.isNaN(null), 'null is not NaN'); + assert.ok(!_.isNaN(0), '0 is not NaN'); + assert.ok(!_.isNaN(new Number(0)), 'wrapped 0 is not NaN'); + assert.ok(_.isNaN(NaN), 'but NaN is'); + assert.ok(_.isNaN(new Number(NaN)), 'wrapped NaN is still NaN'); + }); + + QUnit.test('isNull', function(assert) { + assert.ok(!_.isNull(void 0), 'undefined is not null'); + assert.ok(!_.isNull(NaN), 'NaN is not null'); + assert.ok(_.isNull(null), 'but null is'); + }); + + QUnit.test('isUndefined', function(assert) { + assert.ok(!_.isUndefined(1), 'numbers are defined'); + assert.ok(!_.isUndefined(null), 'null is defined'); + assert.ok(!_.isUndefined(false), 'false is defined'); + assert.ok(!_.isUndefined(NaN), 'NaN is defined'); + assert.ok(_.isUndefined(), 'nothing is undefined'); + assert.ok(_.isUndefined(void 0), 'undefined is undefined'); + }); + + QUnit.test('isError', function(assert) { + assert.ok(!_.isError(1), 'numbers are not Errors'); + assert.ok(!_.isError(null), 'null is not an Error'); + assert.ok(!_.isError(Error), 'functions are not Errors'); + assert.ok(_.isError(new Error()), 'Errors are Errors'); + assert.ok(_.isError(new EvalError()), 'EvalErrors are Errors'); + assert.ok(_.isError(new RangeError()), 'RangeErrors are Errors'); + assert.ok(_.isError(new ReferenceError()), 'ReferenceErrors are Errors'); + assert.ok(_.isError(new SyntaxError()), 'SyntaxErrors are Errors'); + assert.ok(_.isError(new TypeError()), 'TypeErrors are Errors'); + assert.ok(_.isError(new URIError()), 'URIErrors are Errors'); + }); + + QUnit.test('tap', function(assert) { + var intercepted = null; + var interceptor = function(obj) { intercepted = obj; }; + var returned = _.tap(1, interceptor); + assert.equal(intercepted, 1, 'passes tapped object to interceptor'); + assert.equal(returned, 1, 'returns tapped object'); + + returned = _([1, 2, 3]).chain(). + map(function(n){ return n * 2; }). + max(). + tap(interceptor). + value(); + assert.equal(returned, 6, 'can use tapped objects in a chain'); + assert.equal(intercepted, returned, 'can use tapped objects in a chain'); + }); + + QUnit.test('has', function(assert) { + var obj = {foo: 'bar', func: function(){}}; + assert.ok(_.has(obj, 'foo'), 'has() checks that the object has a property.'); + assert.ok(!_.has(obj, 'baz'), "has() returns false if the object doesn't have the property."); + assert.ok(_.has(obj, 'func'), 'has() works for functions too.'); + obj.hasOwnProperty = null; + assert.ok(_.has(obj, 'foo'), 'has() works even when the hasOwnProperty method is deleted.'); + var child = {}; + child.prototype = obj; + assert.ok(!_.has(child, 'foo'), 'has() does not check the prototype chain for a property.'); + assert.strictEqual(_.has(null, 'foo'), false, 'has() returns false for null'); + assert.strictEqual(_.has(void 0, 'foo'), false, 'has() returns false for undefined'); + }); + + QUnit.test('isMatch', function(assert) { + var moe = {name: 'Moe Howard', hair: true}; + var curly = {name: 'Curly Howard', hair: false}; + + assert.equal(_.isMatch(moe, {hair: true}), true, 'Returns a boolean'); + assert.equal(_.isMatch(curly, {hair: true}), false, 'Returns a boolean'); + + assert.equal(_.isMatch(5, {__x__: void 0}), false, 'can match undefined props on primitives'); + assert.equal(_.isMatch({__x__: void 0}, {__x__: void 0}), true, 'can match undefined props'); + + assert.equal(_.isMatch(null, {}), true, 'Empty spec called with null object returns true'); + assert.equal(_.isMatch(null, {a: 1}), false, 'Non-empty spec called with null object returns false'); + + _.each([null, void 0], function(item) { assert.strictEqual(_.isMatch(item, null), true, 'null matches null'); }); + _.each([null, void 0], function(item) { assert.strictEqual(_.isMatch(item, null), true, 'null matches {}'); }); + assert.strictEqual(_.isMatch({b: 1}, {a: void 0}), false, 'handles undefined values (1683)'); + + _.each([true, 5, NaN, null, void 0], function(item) { + assert.strictEqual(_.isMatch({a: 1}, item), true, 'treats primitives as empty'); + }); + + function Prototest() {} + Prototest.prototype.x = 1; + var specObj = new Prototest; + assert.equal(_.isMatch({x: 2}, specObj), true, 'spec is restricted to own properties'); + + specObj.y = 5; + assert.equal(_.isMatch({x: 1, y: 5}, specObj), true); + assert.equal(_.isMatch({x: 1, y: 4}, specObj), false); + + assert.ok(_.isMatch(specObj, {x: 1, y: 5}), 'inherited and own properties are checked on the test object'); + + Prototest.x = 5; + assert.ok(_.isMatch({x: 5, y: 1}, Prototest), 'spec can be a function'); + + //null edge cases + var oCon = {constructor: Object}; + assert.deepEqual(_.map([null, void 0, 5, {}], _.partial(_.isMatch, _, oCon)), [false, false, false, true], 'doesnt falsey match constructor on undefined/null'); + }); + + QUnit.test('matcher', function(assert) { + var moe = {name: 'Moe Howard', hair: true}; + var curly = {name: 'Curly Howard', hair: false}; + var stooges = [moe, curly]; + + assert.equal(_.matcher({hair: true})(moe), true, 'Returns a boolean'); + assert.equal(_.matcher({hair: true})(curly), false, 'Returns a boolean'); + + assert.equal(_.matcher({__x__: void 0})(5), false, 'can match undefined props on primitives'); + assert.equal(_.matcher({__x__: void 0})({__x__: void 0}), true, 'can match undefined props'); + + assert.equal(_.matcher({})(null), true, 'Empty spec called with null object returns true'); + assert.equal(_.matcher({a: 1})(null), false, 'Non-empty spec called with null object returns false'); + + assert.ok(_.find(stooges, _.matcher({hair: false})) === curly, 'returns a predicate that can be used by finding functions.'); + assert.ok(_.find(stooges, _.matcher(moe)) === moe, 'can be used to locate an object exists in a collection.'); + assert.deepEqual(_.filter([null, void 0], _.matcher({a: 1})), [], 'Do not throw on null values.'); + + assert.deepEqual(_.filter([null, void 0], _.matcher(null)), [null, void 0], 'null matches null'); + assert.deepEqual(_.filter([null, void 0], _.matcher({})), [null, void 0], 'null matches {}'); + assert.deepEqual(_.filter([{b: 1}], _.matcher({a: void 0})), [], 'handles undefined values (1683)'); + + _.each([true, 5, NaN, null, void 0], function(item) { + assert.equal(_.matcher(item)({a: 1}), true, 'treats primitives as empty'); + }); + + function Prototest() {} + Prototest.prototype.x = 1; + var specObj = new Prototest; + var protospec = _.matcher(specObj); + assert.equal(protospec({x: 2}), true, 'spec is restricted to own properties'); + + specObj.y = 5; + protospec = _.matcher(specObj); + assert.equal(protospec({x: 1, y: 5}), true); + assert.equal(protospec({x: 1, y: 4}), false); + + assert.ok(_.matcher({x: 1, y: 5})(specObj), 'inherited and own properties are checked on the test object'); + + Prototest.x = 5; + assert.ok(_.matcher(Prototest)({x: 5, y: 1}), 'spec can be a function'); + + // #1729 + var o = {b: 1}; + var m = _.matcher(o); + + assert.equal(m({b: 1}), true); + o.b = 2; + o.a = 1; + assert.equal(m({b: 1}), true, 'changing spec object doesnt change matches result'); + + + //null edge cases + var oCon = _.matcher({constructor: Object}); + assert.deepEqual(_.map([null, void 0, 5, {}], oCon), [false, false, false, true], 'doesnt falsey match constructor on undefined/null'); + }); + + QUnit.test('matches', function(assert) { + assert.strictEqual(_.matches, _.matcher, 'is an alias for matcher'); + }); + + QUnit.test('findKey', function(assert) { + var objects = { + a: {a: 0, b: 0}, + b: {a: 1, b: 1}, + c: {a: 2, b: 2} + }; + + assert.equal(_.findKey(objects, function(obj) { + return obj.a === 0; + }), 'a'); + + assert.equal(_.findKey(objects, function(obj) { + return obj.b * obj.a === 4; + }), 'c'); + + assert.equal(_.findKey(objects, 'a'), 'b', 'Uses lookupIterator'); + + assert.equal(_.findKey(objects, function(obj) { + return obj.b * obj.a === 5; + }), void 0); + + assert.strictEqual(_.findKey([1, 2, 3, 4, 5, 6], function(obj) { + return obj === 3; + }), '2', 'Keys are strings'); + + assert.strictEqual(_.findKey(objects, function(a) { + return a.foo === null; + }), void 0); + + _.findKey({a: {a: 1}}, function(a, key, obj) { + assert.equal(key, 'a'); + assert.deepEqual(obj, {a: {a: 1}}); + assert.strictEqual(this, objects, 'called with context'); + }, objects); + + var array = [1, 2, 3, 4]; + array.match = 55; + assert.strictEqual(_.findKey(array, function(x) { return x === 55; }), 'match', 'matches array-likes keys'); + }); + + + QUnit.test('mapObject', function(assert) { + var obj = {a: 1, b: 2}; + var objects = { + a: {a: 0, b: 0}, + b: {a: 1, b: 1}, + c: {a: 2, b: 2} + }; + + assert.deepEqual(_.mapObject(obj, function(val) { + return val * 2; + }), {a: 2, b: 4}, 'simple objects'); + + assert.deepEqual(_.mapObject(objects, function(val) { + return _.reduce(val, function(memo, v){ + return memo + v; + }, 0); + }), {a: 0, b: 2, c: 4}, 'nested objects'); + + assert.deepEqual(_.mapObject(obj, function(val, key, o) { + return o[key] * 2; + }), {a: 2, b: 4}, 'correct keys'); + + assert.deepEqual(_.mapObject([1, 2], function(val) { + return val * 2; + }), {0: 2, 1: 4}, 'check behavior for arrays'); + + assert.deepEqual(_.mapObject(obj, function(val) { + return val * this.multiplier; + }, {multiplier: 3}), {a: 3, b: 6}, 'keep context'); + + assert.deepEqual(_.mapObject({a: 1}, function() { + return this.length; + }, [1, 2]), {a: 2}, 'called with context'); + + var ids = _.mapObject({length: 2, 0: {id: '1'}, 1: {id: '2'}}, function(n){ + return n.id; + }); + assert.deepEqual(ids, {length: void 0, 0: '1', 1: '2'}, 'Check with array-like objects'); + + // Passing a property name like _.pluck. + var people = {a: {name: 'moe', age: 30}, b: {name: 'curly', age: 50}}; + assert.deepEqual(_.mapObject(people, 'name'), {a: 'moe', b: 'curly'}, 'predicate string map to object properties'); + + _.each([null, void 0, 1, 'abc', [], {}, void 0], function(val){ + assert.deepEqual(_.mapObject(val, _.identity), {}, 'mapValue identity'); + }); + + var Proto = function(){ this.a = 1; }; + Proto.prototype.b = 1; + var protoObj = new Proto(); + assert.deepEqual(_.mapObject(protoObj, _.identity), {a: 1}, 'ignore inherited values from prototypes'); + + }); +}()); |