1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 // Flags: --expose-gc --allow-natives-syntax --harmony-tostring
31 function assertSize(expected, collection) {
32 if (collection instanceof Map || collection instanceof Set) {
33 assertEquals(expected, collection.size);
38 // Test valid getter and setter calls on Sets and WeakSets
39 function TestValidSetCalls(m) {
40 assertDoesNotThrow(function () { m.add(new Object) });
41 assertDoesNotThrow(function () { m.has(new Object) });
42 assertDoesNotThrow(function () { m.delete(new Object) });
44 TestValidSetCalls(new Set);
45 TestValidSetCalls(new WeakSet);
48 // Test valid getter and setter calls on Maps and WeakMaps
49 function TestValidMapCalls(m) {
50 assertDoesNotThrow(function () { m.get(new Object) });
51 assertDoesNotThrow(function () { m.set(new Object) });
52 assertDoesNotThrow(function () { m.has(new Object) });
53 assertDoesNotThrow(function () { m.delete(new Object) });
55 TestValidMapCalls(new Map);
56 TestValidMapCalls(new WeakMap);
59 // Test invalid getter and setter calls for WeakMap only
60 function TestInvalidCalls(m) {
61 assertThrows(function () { m.get(undefined) }, TypeError);
62 assertThrows(function () { m.set(undefined, 0) }, TypeError);
63 assertThrows(function () { m.get(null) }, TypeError);
64 assertThrows(function () { m.set(null, 0) }, TypeError);
65 assertThrows(function () { m.get(0) }, TypeError);
66 assertThrows(function () { m.set(0, 0) }, TypeError);
67 assertThrows(function () { m.get('a-key') }, TypeError);
68 assertThrows(function () { m.set('a-key', 0) }, TypeError);
70 TestInvalidCalls(new WeakMap);
73 // Test expected behavior for Sets and WeakSets
74 function TestSet(set, key) {
75 assertFalse(set.has(key));
76 assertSame(set, set.add(key));
77 assertTrue(set.has(key));
78 assertTrue(set.delete(key));
79 assertFalse(set.has(key));
80 assertFalse(set.delete(key));
81 assertFalse(set.has(key));
83 function TestSetBehavior(set) {
84 for (var i = 0; i < 20; i++) {
85 TestSet(set, new Object);
87 TestSet(set, i / 100);
88 TestSet(set, 'key-' + i);
90 var keys = [ +0, -0, +Infinity, -Infinity, true, false, null, undefined ];
91 for (var i = 0; i < keys.length; i++) {
92 TestSet(set, keys[i]);
95 TestSetBehavior(new Set);
96 TestSet(new WeakSet, new Object);
99 // Test expected mapping behavior for Maps and WeakMaps
100 function TestMapping(map, key, value) {
101 assertSame(map, map.set(key, value));
102 assertSame(value, map.get(key));
104 function TestMapBehavior1(m) {
105 TestMapping(m, new Object, 23);
106 TestMapping(m, new Object, 'the-value');
107 TestMapping(m, new Object, new Object);
109 TestMapBehavior1(new Map);
110 TestMapBehavior1(new WeakMap);
113 // Test expected mapping behavior for Maps only
114 function TestMapBehavior2(m) {
115 for (var i = 0; i < 20; i++) {
116 TestMapping(m, i, new Object);
117 TestMapping(m, i / 10, new Object);
118 TestMapping(m, 'key-' + i, new Object);
120 // -0 is handled in TestMinusZeroMap
121 var keys = [ 0, +Infinity, -Infinity, true, false, null, undefined ];
122 for (var i = 0; i < keys.length; i++) {
123 TestMapping(m, keys[i], new Object);
126 TestMapBehavior2(new Map);
129 // Test expected querying behavior of Maps and WeakMaps
130 function TestQuery(m) {
131 var key = new Object;
132 var values = [ 'x', 0, +Infinity, -Infinity, true, false, null, undefined ];
133 for (var i = 0; i < values.length; i++) {
134 TestMapping(m, key, values[i]);
135 assertTrue(m.has(key));
136 assertFalse(m.has(new Object));
140 TestQuery(new WeakMap);
143 // Test expected deletion behavior of Maps and WeakMaps
144 function TestDelete(m) {
145 var key = new Object;
146 TestMapping(m, key, 'to-be-deleted');
147 assertTrue(m.delete(key));
148 assertFalse(m.delete(key));
149 assertFalse(m.delete(new Object));
150 assertSame(m.get(key), undefined);
153 TestDelete(new WeakMap);
156 // Test GC of Maps and WeakMaps with entry
157 function TestGC1(m) {
158 var key = new Object;
159 m.set(key, 'not-collected');
161 assertSame('not-collected', m.get(key));
164 TestGC1(new WeakMap);
167 // Test GC of Maps and WeakMaps with chained entries
168 function TestGC2(m) {
169 var head = new Object;
170 for (key = head, i = 0; i < 10; i++, key = m.get(key)) {
171 m.set(key, new Object);
175 for (key = head; key != undefined; key = m.get(key)) {
178 assertEquals(11, count);
181 TestGC2(new WeakMap);
184 // Test property attribute [[Enumerable]]
185 function TestEnumerable(func) {
188 for (var p in x) array.push(p);
191 assertArrayEquals([], props(func));
192 assertArrayEquals([], props(func.prototype));
193 assertArrayEquals([], props(new func()));
197 TestEnumerable(WeakMap);
198 TestEnumerable(WeakSet);
201 // Test arbitrary properties on Maps and WeakMaps
202 function TestArbitrary(m) {
203 function TestProperty(map, property, value) {
204 map[property] = value;
205 assertEquals(value, map[property]);
207 for (var i = 0; i < 20; i++) {
208 TestProperty(m, i, 'val' + i);
209 TestProperty(m, 'foo' + i, 'bar' + i);
211 TestMapping(m, new Object, 'foobar');
213 TestArbitrary(new Map);
214 TestArbitrary(new WeakMap);
217 // Test direct constructor call
218 assertThrows(function() { Set(); }, TypeError);
219 assertThrows(function() { Map(); }, TypeError);
220 assertThrows(function() { WeakMap(); }, TypeError);
221 assertThrows(function() { WeakSet(); }, TypeError);
224 // Test whether NaN values as keys are treated correctly.
226 assertFalse(s.has(NaN));
227 assertFalse(s.has(NaN + 1));
228 assertFalse(s.has(23));
230 assertTrue(s.has(NaN));
231 assertTrue(s.has(NaN + 1));
232 assertFalse(s.has(23));
234 assertFalse(m.has(NaN));
235 assertFalse(m.has(NaN + 1));
236 assertFalse(m.has(23));
237 m.set(NaN, 'a-value');
238 assertTrue(m.has(NaN));
239 assertTrue(m.has(NaN + 1));
240 assertFalse(m.has(23));
243 // Test some common JavaScript idioms for Sets
245 assertTrue(s instanceof Set);
246 assertTrue(Set.prototype.add instanceof Function)
247 assertTrue(Set.prototype.has instanceof Function)
248 assertTrue(Set.prototype.delete instanceof Function)
249 assertTrue(Set.prototype.clear instanceof Function)
252 // Test some common JavaScript idioms for Maps
254 assertTrue(m instanceof Map);
255 assertTrue(Map.prototype.set instanceof Function)
256 assertTrue(Map.prototype.get instanceof Function)
257 assertTrue(Map.prototype.has instanceof Function)
258 assertTrue(Map.prototype.delete instanceof Function)
259 assertTrue(Map.prototype.clear instanceof Function)
262 // Test some common JavaScript idioms for WeakMaps
264 assertTrue(m instanceof WeakMap);
265 assertTrue(WeakMap.prototype.set instanceof Function)
266 assertTrue(WeakMap.prototype.get instanceof Function)
267 assertTrue(WeakMap.prototype.has instanceof Function)
268 assertTrue(WeakMap.prototype.delete instanceof Function)
269 assertTrue(WeakMap.prototype.clear instanceof Function)
272 // Test some common JavaScript idioms for WeakSets
274 assertTrue(s instanceof WeakSet);
275 assertTrue(WeakSet.prototype.add instanceof Function)
276 assertTrue(WeakSet.prototype.has instanceof Function)
277 assertTrue(WeakSet.prototype.delete instanceof Function)
278 assertTrue(WeakSet.prototype.clear instanceof Function)
281 // Test class of instance and prototype.
282 assertEquals("Set", %_ClassOf(new Set))
283 assertEquals("Object", %_ClassOf(Set.prototype))
284 assertEquals("Map", %_ClassOf(new Map))
285 assertEquals("Object", %_ClassOf(Map.prototype))
286 assertEquals("WeakMap", %_ClassOf(new WeakMap))
287 assertEquals("Object", %_ClassOf(WeakMap.prototype))
288 assertEquals("WeakSet", %_ClassOf(new WeakSet))
289 assertEquals("Object", %_ClassOf(WeakMap.prototype))
292 // Test name of constructor.
293 assertEquals("Set", Set.name);
294 assertEquals("Map", Map.name);
295 assertEquals("WeakMap", WeakMap.name);
296 assertEquals("WeakSet", WeakSet.name);
299 // Test prototype property of Set, Map, WeakMap and WeakSet.
300 function TestPrototype(C) {
301 assertTrue(C.prototype instanceof Object);
307 }, Object.getOwnPropertyDescriptor(C, "prototype"));
311 TestPrototype(WeakMap);
312 TestPrototype(WeakSet);
315 // Test constructor property of the Set, Map, WeakMap and WeakSet prototype.
316 function TestConstructor(C) {
317 assertFalse(C === Object.prototype.constructor);
318 assertSame(C, C.prototype.constructor);
319 assertSame(C, (new C).__proto__.constructor);
320 assertEquals(1, C.length);
322 TestConstructor(Set);
323 TestConstructor(Map);
324 TestConstructor(WeakMap);
325 TestConstructor(WeakSet);
328 // Test the Set, Map, WeakMap and WeakSet global properties themselves.
329 function TestDescriptor(global, C) {
335 }, Object.getOwnPropertyDescriptor(global, C.name));
337 TestDescriptor(this, Set);
338 TestDescriptor(this, Map);
339 TestDescriptor(this, WeakMap);
340 TestDescriptor(this, WeakSet);
343 // Regression test for WeakMap prototype.
344 assertTrue(WeakMap.prototype.constructor === WeakMap)
345 assertTrue(Object.getPrototypeOf(WeakMap.prototype) === Object.prototype)
348 // Regression test for issue 1617: The prototype of the WeakMap constructor
349 // needs to be unique (i.e. different from the one of the Object constructor).
350 assertFalse(WeakMap.prototype === Object.prototype);
351 var o = Object.create({});
352 assertFalse("get" in o);
353 assertFalse("set" in o);
354 assertEquals(undefined, o.get);
355 assertEquals(undefined, o.set);
356 var o = Object.create({}, { myValue: {
362 assertEquals(10, o.myValue);
365 // Regression test for issue 1884: Invoking any of the methods for Harmony
366 // maps, sets, or weak maps, with a wrong type of receiver should be throwing
367 // a proper TypeError.
368 var alwaysBogus = [ undefined, null, true, "x", 23, {} ];
369 var bogusReceiversTestSet = [
370 { proto: Set.prototype,
371 funcs: [ 'add', 'has', 'delete' ],
372 receivers: alwaysBogus.concat([ new Map, new WeakMap, new WeakSet ]),
374 { proto: Map.prototype,
375 funcs: [ 'get', 'set', 'has', 'delete' ],
376 receivers: alwaysBogus.concat([ new Set, new WeakMap, new WeakSet ]),
378 { proto: WeakMap.prototype,
379 funcs: [ 'get', 'set', 'has', 'delete' ],
380 receivers: alwaysBogus.concat([ new Set, new Map, new WeakSet ]),
382 { proto: WeakSet.prototype,
383 funcs: [ 'add', 'has', 'delete' ],
384 receivers: alwaysBogus.concat([ new Set, new Map, new WeakMap ]),
387 function TestBogusReceivers(testSet) {
388 for (var i = 0; i < testSet.length; i++) {
389 var proto = testSet[i].proto;
390 var funcs = testSet[i].funcs;
391 var receivers = testSet[i].receivers;
392 for (var j = 0; j < funcs.length; j++) {
393 var func = proto[funcs[j]];
394 for (var k = 0; k < receivers.length; k++) {
395 assertThrows(function () { func.call(receivers[k], {}) }, TypeError);
400 TestBogusReceivers(bogusReceiversTestSet);
404 // There is a proposed stress-test available at the es-discuss mailing list
405 // which cannot be reasonably automated. Check it out by hand if you like:
406 // https://mail.mozilla.org/pipermail/es-discuss/2011-May/014096.html
409 // Set and Map size getters
410 var setSizeDescriptor = Object.getOwnPropertyDescriptor(Set.prototype, 'size');
411 assertEquals(undefined, setSizeDescriptor.value);
412 assertEquals(undefined, setSizeDescriptor.set);
413 assertTrue(setSizeDescriptor.get instanceof Function);
414 assertEquals(undefined, setSizeDescriptor.get.prototype);
415 assertFalse(setSizeDescriptor.enumerable);
416 assertTrue(setSizeDescriptor.configurable);
419 assertFalse(s.hasOwnProperty('size'));
420 for (var i = 0; i < 10; i++) {
421 assertEquals(i, s.size);
424 for (var i = 9; i >= 0; i--) {
426 assertEquals(i, s.size);
430 var mapSizeDescriptor = Object.getOwnPropertyDescriptor(Map.prototype, 'size');
431 assertEquals(undefined, mapSizeDescriptor.value);
432 assertEquals(undefined, mapSizeDescriptor.set);
433 assertTrue(mapSizeDescriptor.get instanceof Function);
434 assertEquals(undefined, mapSizeDescriptor.get.prototype);
435 assertFalse(mapSizeDescriptor.enumerable);
436 assertTrue(mapSizeDescriptor.configurable);
439 assertFalse(m.hasOwnProperty('size'));
440 for (var i = 0; i < 10; i++) {
441 assertEquals(i, m.size);
444 for (var i = 9; i >= 0; i--) {
446 assertEquals(i, m.size);
454 assertTrue(s.has(42));
455 assertEquals(1, s.size);
457 assertFalse(s.has(42));
458 assertEquals(0, s.size);
466 assertTrue(m.has(42));
467 assertEquals(1, m.size);
469 assertFalse(m.has(42));
470 assertEquals(0, m.size);
474 // Test WeakMap clear
476 var k = new Object();
477 var w = new WeakMap();
479 assertTrue(w.has(k));
480 assertEquals(23, w.get(k));
482 assertFalse(w.has(k));
483 assertEquals(undefined, w.get(k));
487 // Test WeakSet clear
489 var k = new Object();
490 var w = new WeakSet();
492 assertTrue(w.has(k));
494 assertFalse(w.has(k));
498 (function TestMinusZeroSet() {
501 assertSame(0, s.values().next().value);
503 assertEquals(1, s.size);
504 assertTrue(s.has(0));
505 assertTrue(s.has(-0));
509 (function TestMinusZeroMap() {
512 assertSame(0, m.keys().next().value);
514 assertEquals(1, m.size);
515 assertTrue(m.has(0));
516 assertTrue(m.has(-0));
517 assertEquals('plus', m.get(0));
518 assertEquals('plus', m.get(-0));
522 (function TestSetForEachInvalidTypes() {
523 assertThrows(function() {
524 Set.prototype.set.forEach.call({});
528 assertThrows(function() {
534 (function TestSetForEach() {
542 set.forEach(function(v, k, s) {
545 assertSame(this, receiver);
552 } else if (v === 'c') {
558 assertEquals('acdfb', buffer);
562 (function TestSetForEachAddAtEnd() {
568 set.forEach(function(v) {
575 assertEquals('abc', buffer);
579 (function TestSetForEachDeleteNext() {
586 set.forEach(function(v) {
593 assertEquals('ab', buffer);
597 (function TestSetForEachDeleteVisitedAndAddAgain() {
604 set.forEach(function(v) {
608 } else if (v === 'c') {
613 assertEquals('abca', buffer);
617 (function TestSetForEachClear() {
624 set.forEach(function(v) {
633 assertEquals('ade', buffer);
637 (function TestSetForEachNested() {
644 set.forEach(function(v) {
646 set.forEach(function(v) {
654 assertEquals('aaccac', buffer);
658 (function TestSetForEachEarlyExit() {
667 set.forEach(function(v) {
674 assertEquals('a', buffer);
678 (function TestSetForEachGC() {
680 for (var i = 0; i < 100; i++) {
685 set.forEach(function(v) {
691 assertEquals(4950, accumulated);
695 (function TestSetForEachReceiverAsObject() {
696 var set = new Set(["1", "2"]);
698 // Create a new object in each function call when receiver is a
699 // primitive value. See ECMA-262, Annex C.
701 set.forEach(function() { a.push(this) }, "");
702 assertTrue(a[0] !== a[1]);
704 // Do not create a new object otherwise.
706 set.forEach(function() { a.push(this); }, {});
707 assertEquals(a[0], a[1]);
711 (function TestSetForEachReceiverAsObjectInStrictMode() {
712 var set = new Set(["1", "2"]);
714 // In strict mode primitive values should not be coerced to an object.
716 set.forEach(function() { 'use strict'; a.push(this); }, "");
717 assertTrue(a[0] === "" && a[0] === a[1]);
721 (function TestMapForEachInvalidTypes() {
722 assertThrows(function() {
723 Map.prototype.map.forEach.call({});
727 assertThrows(function() {
733 (function TestMapForEach() {
741 map.forEach(function(v, k, m) {
742 assertEquals(map, m);
743 assertEquals(this, receiver);
750 } else if (k === 2) {
756 assertArrayEquals([0, 'a', 2, 'c', 3, 'd', 5, 'f', 1, 'B'], buffer);
760 (function TestMapForEachAddAtEnd() {
766 map.forEach(function(v, k) {
773 assertArrayEquals([0, 'a', 1, 'b', 2, 'c'], buffer);
777 (function TestMapForEachDeleteNext() {
784 map.forEach(function(v, k) {
791 assertArrayEquals([0, 'a', 1, 'b'], buffer);
795 (function TestSetForEachDeleteVisitedAndAddAgain() {
802 map.forEach(function(v, k) {
806 } else if (k === 2) {
811 assertArrayEquals([0, 'a', 1, 'b', 2, 'c', 0, 'a'], buffer);
815 (function TestMapForEachClear() {
822 map.forEach(function(v, k) {
831 assertArrayEquals([0, 'a', 3, 'd', 4, 'e'], buffer);
835 (function TestMapForEachNested() {
842 map.forEach(function(v, k) {
844 map.forEach(function(v, k) {
852 assertArrayEquals([0, 'a', 0, 'a', 2, 'c', 2, 'c', 0, 'a', 2, 'c'], buffer);
856 (function TestMapForEachEarlyExit() {
865 map.forEach(function(v, k) {
872 assertArrayEquals([0, 'a'], buffer);
876 (function TestMapForEachGC() {
878 for (var i = 0; i < 100; i++) {
883 map.forEach(function(v) {
889 assertEquals(4950, accumulated);
893 (function TestMapForEachAllRemovedTransition() {
898 map.forEach(function(v) {
901 for (var i = 1; i < 4; i++) {
907 for (var i = 0; i < 4; i++) {
910 for (var i = 4; i < 8; i++) {
916 assertArrayEquals([0, 1, 2, 3, 4, 5, 6, 7], buffer);
920 (function TestMapForEachClearTransition() {
926 map.forEach(function(v) {
929 for (var j = 0; j < 5; j++) {
936 assertArrayEquals([0, 1, 2, 3, 4], buffer);
940 (function TestMapForEachNestedNonTrivialTransition() {
950 map.forEach(function(v) {
951 if (++i > 10) return;
957 for (var j = 4; j < 10; j++) {
960 for (var j = 4; j < 10; j += 2) {
965 for (var j = 10; j < 20; j++) {
968 for (var j = 10; j < 20; j += 2) {
976 assertArrayEquals([1, 2, 3, 5, 7, 9, 11, 13, 15, 17], buffer);
980 (function TestMapForEachAllRemovedTransitionNoClear() {
985 map.forEach(function(v) {
988 for (var i = 1; i < 8; i++) {
994 for (var i = 0; i < 8; i++) {
1000 assertArrayEquals([0, 1, 2, 3, 4], buffer);
1004 (function TestMapForEachNoMoreElementsAfterTransition() {
1009 map.forEach(function(v) {
1012 for (var i = 1; i < 16; i++) {
1018 for (var i = 5; i < 16; i++) {
1024 assertArrayEquals([0, 1, 2, 3, 4], buffer);
1028 (function TestMapForEachReceiverAsObject() {
1029 var map = new Map();
1030 map.set("key1", "value1");
1031 map.set("key2", "value2");
1033 // Create a new object in each function call when receiver is a
1034 // primitive value. See ECMA-262, Annex C.
1036 map.forEach(function() { a.push(this) }, "");
1037 assertTrue(a[0] !== a[1]);
1039 // Do not create a new object otherwise.
1041 map.forEach(function() { a.push(this); }, {});
1042 assertEquals(a[0], a[1]);
1046 (function TestMapForEachReceiverAsObjectInStrictMode() {
1047 var map = new Map();
1048 map.set("key1", "value1");
1049 map.set("key2", "value2");
1051 // In strict mode primitive values should not be coerced to an object.
1053 map.forEach(function() { 'use strict'; a.push(this); }, "");
1054 assertTrue(a[0] === "" && a[0] === a[1]);
1058 // Allows testing iterator-based constructors easily.
1059 var oneAndTwo = new Map();
1063 oneAndTwo.set(k1, 1);
1064 oneAndTwo.set(k2, 2);
1067 function TestSetConstructor(ctor) {
1068 var s = new ctor(null);
1071 s = new ctor(undefined);
1075 assertThrows(function() {
1078 assertThrows(function() {
1082 // @@iterator not callable
1083 assertThrows(function() {
1085 object[Symbol.iterator] = 42;
1089 // @@iterator result not object
1090 assertThrows(function() {
1092 object[Symbol.iterator] = function() {
1102 s = new ctor(s2.values());
1104 assertTrue(s.has(k0));
1105 assertTrue(s.has(k1));
1106 assertTrue(s.has(k2));
1108 TestSetConstructor(Set);
1109 TestSetConstructor(WeakSet);
1112 function TestSetConstructorAddNotCallable(ctor) {
1113 var originalPrototypeAdd = ctor.prototype.add;
1114 assertThrows(function() {
1115 ctor.prototype.add = 42;
1116 new ctor(oneAndTwo.values());
1118 ctor.prototype.add = originalPrototypeAdd;
1120 TestSetConstructorAddNotCallable(Set);
1121 TestSetConstructorAddNotCallable(WeakSet);
1124 function TestSetConstructorGetAddOnce(ctor) {
1125 var originalPrototypeAdd = ctor.prototype.add;
1126 var getAddCount = 0;
1127 Object.defineProperty(ctor.prototype, 'add', {
1130 return function() {};
1133 var s = new ctor(oneAndTwo.values());
1134 assertEquals(1, getAddCount);
1136 Object.defineProperty(ctor.prototype, 'add', {
1137 value: originalPrototypeAdd,
1141 TestSetConstructorGetAddOnce(Set);
1142 TestSetConstructorGetAddOnce(WeakSet);
1145 function TestSetConstructorAddReplaced(ctor) {
1146 var originalPrototypeAdd = ctor.prototype.add;
1148 ctor.prototype.add = function(value) {
1150 originalPrototypeAdd.call(this, value);
1151 ctor.prototype.add = null;
1153 var s = new ctor(oneAndTwo.keys());
1154 assertEquals(2, addCount);
1156 ctor.prototype.add = originalPrototypeAdd;
1158 TestSetConstructorAddReplaced(Set);
1159 TestSetConstructorAddReplaced(WeakSet);
1162 function TestSetConstructorOrderOfDoneValue(ctor) {
1163 var valueCount = 0, doneCount = 0;
1177 iterator[Symbol.iterator] = function() {
1180 assertThrows(function() {
1183 assertEquals(1, doneCount);
1184 assertEquals(0, valueCount);
1186 TestSetConstructorOrderOfDoneValue(Set);
1187 TestSetConstructorOrderOfDoneValue(WeakSet);
1190 function TestSetConstructorNextNotAnObject(ctor) {
1196 iterator[Symbol.iterator] = function() {
1199 assertThrows(function() {
1203 TestSetConstructorNextNotAnObject(Set);
1204 TestSetConstructorNextNotAnObject(WeakSet);
1207 (function TestWeakSetConstructorNonObjectKeys() {
1208 assertThrows(function() {
1214 function TestSetConstructorIterableValue(ctor) {
1216 // Strict mode is required to prevent implicit wrapping in the getter.
1217 Object.defineProperty(Number.prototype, Symbol.iterator, {
1219 assertEquals('object', typeof this);
1221 return oneAndTwo.keys();
1227 var set = new ctor(42);
1229 assertTrue(set.has(k1));
1230 assertTrue(set.has(k2));
1232 delete Number.prototype[Symbol.iterator];
1234 TestSetConstructorIterableValue(Set);
1235 TestSetConstructorIterableValue(WeakSet);
1238 (function TestSetConstructorStringValue() {
1239 var s = new Set('abc');
1241 assertTrue(s.has('a'));
1242 assertTrue(s.has('b'));
1243 assertTrue(s.has('c'));
1247 function TestMapConstructor(ctor) {
1248 var m = new ctor(null);
1251 m = new ctor(undefined);
1255 assertThrows(function() {
1258 assertThrows(function() {
1262 // @@iterator not callable
1263 assertThrows(function() {
1265 object[Symbol.iterator] = 42;
1269 // @@iterator result not object
1270 assertThrows(function() {
1272 object[Symbol.iterator] = function() {
1282 m = new ctor(m2.entries());
1284 assertEquals('a', m.get(k0));
1285 assertEquals('b', m.get(k1));
1286 assertEquals('c', m.get(k2));
1288 TestMapConstructor(Map);
1289 TestMapConstructor(WeakMap);
1292 function TestMapConstructorSetNotCallable(ctor) {
1293 var originalPrototypeSet = ctor.prototype.set;
1294 assertThrows(function() {
1295 ctor.prototype.set = 42;
1296 new ctor(oneAndTwo.entries());
1298 ctor.prototype.set = originalPrototypeSet;
1300 TestMapConstructorSetNotCallable(Map);
1301 TestMapConstructorSetNotCallable(WeakMap);
1304 function TestMapConstructorGetAddOnce(ctor) {
1305 var originalPrototypeSet = ctor.prototype.set;
1306 var getSetCount = 0;
1307 Object.defineProperty(ctor.prototype, 'set', {
1310 return function() {};
1313 var m = new ctor(oneAndTwo.entries());
1314 assertEquals(1, getSetCount);
1316 Object.defineProperty(ctor.prototype, 'set', {
1317 value: originalPrototypeSet,
1321 TestMapConstructorGetAddOnce(Map);
1322 TestMapConstructorGetAddOnce(WeakMap);
1325 function TestMapConstructorSetReplaced(ctor) {
1326 var originalPrototypeSet = ctor.prototype.set;
1328 ctor.prototype.set = function(key, value) {
1330 originalPrototypeSet.call(this, key, value);
1331 ctor.prototype.set = null;
1333 var m = new ctor(oneAndTwo.entries());
1334 assertEquals(2, setCount);
1336 ctor.prototype.set = originalPrototypeSet;
1338 TestMapConstructorSetReplaced(Map);
1339 TestMapConstructorSetReplaced(WeakMap);
1342 function TestMapConstructorOrderOfDoneValue(ctor) {
1343 var valueCount = 0, doneCount = 0;
1344 function FakeError() {}
1353 throw new FakeError();
1358 iterator[Symbol.iterator] = function() {
1361 assertThrows(function() {
1364 assertEquals(1, doneCount);
1365 assertEquals(0, valueCount);
1367 TestMapConstructorOrderOfDoneValue(Map);
1368 TestMapConstructorOrderOfDoneValue(WeakMap);
1371 function TestMapConstructorNextNotAnObject(ctor) {
1377 iterator[Symbol.iterator] = function() {
1380 assertThrows(function() {
1384 TestMapConstructorNextNotAnObject(Map);
1385 TestMapConstructorNextNotAnObject(WeakMap);
1388 function TestMapConstructorIteratorNotObjectValues(ctor) {
1389 assertThrows(function() {
1390 new ctor(oneAndTwo.values());
1393 TestMapConstructorIteratorNotObjectValues(Map);
1394 TestMapConstructorIteratorNotObjectValues(WeakMap);
1397 (function TestWeakMapConstructorNonObjectKeys() {
1398 assertThrows(function() {
1399 new WeakMap([[1, 2]])
1404 function TestMapConstructorIterableValue(ctor) {
1406 // Strict mode is required to prevent implicit wrapping in the getter.
1407 Object.defineProperty(Number.prototype, Symbol.iterator, {
1409 assertEquals('object', typeof this);
1411 return oneAndTwo.entries();
1417 var map = new ctor(42);
1419 assertEquals(1, map.get(k1));
1420 assertEquals(2, map.get(k2));
1422 delete Number.prototype[Symbol.iterator];
1424 TestMapConstructorIterableValue(Map);
1425 TestMapConstructorIterableValue(WeakMap);
1427 function TestCollectionToString(C) {
1428 assertEquals("[object " + C.name + "]",
1429 Object.prototype.toString.call(new C()));
1431 TestCollectionToString(Map);
1432 TestCollectionToString(Set);
1433 TestCollectionToString(WeakMap);
1434 TestCollectionToString(WeakSet);