// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --harmony-collections --allow-natives-syntax (function TestSetIterator() { var s = new Set; var iter = s.values(); assertEquals('Set Iterator', %_ClassOf(iter)); var SetIteratorPrototype = iter.__proto__; assertFalse(SetIteratorPrototype.hasOwnProperty('constructor')); assertEquals(SetIteratorPrototype.__proto__, Object.prototype); var propertyNames = Object.getOwnPropertyNames(SetIteratorPrototype); assertArrayEquals(['next'], propertyNames); assertEquals(new Set().values().__proto__, SetIteratorPrototype); assertEquals(new Set().entries().__proto__, SetIteratorPrototype); })(); (function TestSetIteratorValues() { var s = new Set; s.add(1); s.add(2); s.add(3); var iter = s.values(); assertEquals({value: 1, done: false}, iter.next()); assertEquals({value: 2, done: false}, iter.next()); assertEquals({value: 3, done: false}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestSetIteratorEntries() { var s = new Set; s.add(1); s.add(2); s.add(3); var iter = s.entries(); assertEquals({value: [1, 1], done: false}, iter.next()); assertEquals({value: [2, 2], done: false}, iter.next()); assertEquals({value: [3, 3], done: false}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestSetIteratorMutations() { var s = new Set; s.add(1); var iter = s.values(); assertEquals({value: 1, done: false}, iter.next()); s.add(2); s.add(3); s.add(4); s.add(5); assertEquals({value: 2, done: false}, iter.next()); s.delete(3); assertEquals({value: 4, done: false}, iter.next()); s.delete(5); assertEquals({value: undefined, done: true}, iter.next()); s.add(4); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestSetInvalidReceiver() { assertThrows(function() { Set.prototype.values.call({}); }, TypeError); assertThrows(function() { Set.prototype.entries.call({}); }, TypeError); })(); (function TestSetIteratorInvalidReceiver() { var iter = new Set().values(); assertThrows(function() { iter.next.call({}); }); })(); (function TestSetIteratorSymbol() { assertEquals(Set.prototype[Symbol.iterator], Set.prototype.values); assertTrue(Set.prototype.hasOwnProperty(Symbol.iterator)); assertFalse(Set.prototype.propertyIsEnumerable(Symbol.iterator)); var iter = new Set().values(); assertEquals(iter, iter[Symbol.iterator]()); assertEquals(iter[Symbol.iterator].name, '[Symbol.iterator]'); })(); (function TestMapIterator() { var m = new Map; var iter = m.values(); assertEquals('Map Iterator', %_ClassOf(iter)); var MapIteratorPrototype = iter.__proto__; assertFalse(MapIteratorPrototype.hasOwnProperty('constructor')); assertEquals(MapIteratorPrototype.__proto__, Object.prototype); var propertyNames = Object.getOwnPropertyNames(MapIteratorPrototype); assertArrayEquals(['next'], propertyNames); assertEquals(new Map().values().__proto__, MapIteratorPrototype); assertEquals(new Map().keys().__proto__, MapIteratorPrototype); assertEquals(new Map().entries().__proto__, MapIteratorPrototype); })(); (function TestMapIteratorValues() { var m = new Map; m.set(1, 11); m.set(2, 22); m.set(3, 33); var iter = m.values(); assertEquals({value: 11, done: false}, iter.next()); assertEquals({value: 22, done: false}, iter.next()); assertEquals({value: 33, done: false}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestMapIteratorKeys() { var m = new Map; m.set(1, 11); m.set(2, 22); m.set(3, 33); var iter = m.keys(); assertEquals({value: 1, done: false}, iter.next()); assertEquals({value: 2, done: false}, iter.next()); assertEquals({value: 3, done: false}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestMapIteratorEntries() { var m = new Map; m.set(1, 11); m.set(2, 22); m.set(3, 33); var iter = m.entries(); assertEquals({value: [1, 11], done: false}, iter.next()); assertEquals({value: [2, 22], done: false}, iter.next()); assertEquals({value: [3, 33], done: false}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); assertEquals({value: undefined, done: true}, iter.next()); })(); (function TestMapInvalidReceiver() { assertThrows(function() { Map.prototype.values.call({}); }, TypeError); assertThrows(function() { Map.prototype.keys.call({}); }, TypeError); assertThrows(function() { Map.prototype.entries.call({}); }, TypeError); })(); (function TestMapIteratorInvalidReceiver() { var iter = new Map().values(); assertThrows(function() { iter.next.call({}); }, TypeError); })(); (function TestMapIteratorSymbol() { assertEquals(Map.prototype[Symbol.iterator], Map.prototype.entries); assertTrue(Map.prototype.hasOwnProperty(Symbol.iterator)); assertFalse(Map.prototype.propertyIsEnumerable(Symbol.iterator)); var iter = new Map().values(); assertEquals(iter, iter[Symbol.iterator]()); assertEquals(iter[Symbol.iterator].name, '[Symbol.iterator]'); })();