v8/test/mjsunit/es6/collection-iterator.js
dslomov@chromium.org 08ee4d3a5c Add remaining @@toStringTag symbols to builtins
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/664333003

Patch from Caitlin Potter <caitpotter88@gmail.com>.

Cr-Commit-Position: refs/heads/master@{#24885}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24885 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-10-24 19:29:10 +00:00

219 lines
6.3 KiB
JavaScript

// 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: --allow-natives-syntax --harmony-tostring
(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);
assertEquals("[object Set Iterator]",
Object.prototype.toString.call(iter));
assertEquals("Set Iterator", SetIteratorPrototype[Symbol.toStringTag]);
var desc = Object.getOwnPropertyDescriptor(
SetIteratorPrototype, Symbol.toStringTag);
assertTrue(desc.configurable);
assertFalse(desc.writable);
assertEquals("Set Iterator", desc.value);
})();
(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 TestSetIteratorKeys() {
assertEquals(Set.prototype.keys, Set.prototype.values);
})();
(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);
assertEquals("[object Map Iterator]",
Object.prototype.toString.call(iter));
assertEquals("Map Iterator", MapIteratorPrototype[Symbol.toStringTag]);
var desc = Object.getOwnPropertyDescriptor(
MapIteratorPrototype, Symbol.toStringTag);
assertTrue(desc.configurable);
assertFalse(desc.writable);
assertEquals("Map Iterator", desc.value);
})();
(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]');
})();