v8/test/mjsunit/harmony/collections.js

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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --harmony-collections --expose-gc
// Test valid getter and setter calls on Sets.
function TestValidSetCalls(m) {
assertDoesNotThrow(function () { m.add(new Object) });
assertDoesNotThrow(function () { m.has(new Object) });
assertDoesNotThrow(function () { m.delete(new Object) });
}
TestValidSetCalls(new Set);
// Test valid getter and setter calls on Maps and WeakMaps
function TestValidMapCalls(m) {
assertDoesNotThrow(function () { m.get(new Object) });
assertDoesNotThrow(function () { m.set(new Object) });
assertDoesNotThrow(function () { m.has(new Object) });
assertDoesNotThrow(function () { m.delete(new Object) });
}
TestValidMapCalls(new Map);
TestValidMapCalls(new WeakMap);
// Test invalid getter and setter calls for WeakMap only
function TestInvalidCalls(m) {
assertThrows(function () { m.get(undefined) }, TypeError);
assertThrows(function () { m.set(undefined, 0) }, TypeError);
assertThrows(function () { m.get(null) }, TypeError);
assertThrows(function () { m.set(null, 0) }, TypeError);
assertThrows(function () { m.get(0) }, TypeError);
assertThrows(function () { m.set(0, 0) }, TypeError);
assertThrows(function () { m.get('a-key') }, TypeError);
assertThrows(function () { m.set('a-key', 0) }, TypeError);
}
TestInvalidCalls(new WeakMap);
// Test expected behavior for Sets
function TestSet(set, key) {
assertFalse(set.has(key));
assertSame(undefined, set.add(key));
assertTrue(set.has(key));
assertTrue(set.delete(key));
assertFalse(set.has(key));
assertFalse(set.delete(key));
assertFalse(set.has(key));
}
function TestSetBehavior(set) {
for (var i = 0; i < 20; i++) {
TestSet(set, new Object);
TestSet(set, i);
TestSet(set, i / 100);
TestSet(set, 'key-' + i);
}
var keys = [ +0, -0, +Infinity, -Infinity, true, false, null, undefined ];
for (var i = 0; i < keys.length; i++) {
TestSet(set, keys[i]);
}
}
TestSetBehavior(new Set);
// Test expected mapping behavior for Maps and WeakMaps
function TestMapping(map, key, value) {
assertSame(undefined, map.set(key, value));
assertSame(value, map.get(key));
}
function TestMapBehavior1(m) {
TestMapping(m, new Object, 23);
TestMapping(m, new Object, 'the-value');
TestMapping(m, new Object, new Object);
}
TestMapBehavior1(new Map);
TestMapBehavior1(new WeakMap);
// Test expected mapping behavior for Maps only
function TestMapBehavior2(m) {
for (var i = 0; i < 20; i++) {
TestMapping(m, i, new Object);
TestMapping(m, i / 10, new Object);
TestMapping(m, 'key-' + i, new Object);
}
var keys = [ +0, -0, +Infinity, -Infinity, true, false, null, undefined ];
for (var i = 0; i < keys.length; i++) {
TestMapping(m, keys[i], new Object);
}
}
TestMapBehavior2(new Map);
// Test expected querying behavior of Maps and WeakMaps
function TestQuery(m) {
var key = new Object;
var values = [ 'x', 0, +Infinity, -Infinity, true, false, null, undefined ];
for (var i = 0; i < values.length; i++) {
TestMapping(m, key, values[i]);
assertTrue(m.has(key));
assertFalse(m.has(new Object));
}
}
TestQuery(new Map);
TestQuery(new WeakMap);
// Test expected deletion behavior of Maps and WeakMaps
function TestDelete(m) {
var key = new Object;
TestMapping(m, key, 'to-be-deleted');
assertTrue(m.delete(key));
assertFalse(m.delete(key));
assertFalse(m.delete(new Object));
assertSame(m.get(key), undefined);
}
TestDelete(new Map);
TestDelete(new WeakMap);
// Test GC of Maps and WeakMaps with entry
function TestGC1(m) {
var key = new Object;
m.set(key, 'not-collected');
gc();
assertSame('not-collected', m.get(key));
}
TestGC1(new Map);
TestGC1(new WeakMap);
// Test GC of Maps and WeakMaps with chained entries
function TestGC2(m) {
var head = new Object;
for (key = head, i = 0; i < 10; i++, key = m.get(key)) {
m.set(key, new Object);
}
gc();
var count = 0;
for (key = head; key != undefined; key = m.get(key)) {
count++;
}
assertEquals(11, count);
}
TestGC2(new Map);
TestGC2(new WeakMap);
// Test property attribute [[Enumerable]]
function TestEnumerable(func) {
function props(x) {
var array = [];
for (var p in x) array.push(p);
return array.sort();
}
assertArrayEquals([], props(func));
assertArrayEquals([], props(func.prototype));
assertArrayEquals([], props(new func()));
}
TestEnumerable(Set);
TestEnumerable(Map);
TestEnumerable(WeakMap);
// Test arbitrary properties on Maps and WeakMaps
function TestArbitrary(m) {
function TestProperty(map, property, value) {
map[property] = value;
assertEquals(value, map[property]);
}
for (var i = 0; i < 20; i++) {
TestProperty(m, i, 'val' + i);
TestProperty(m, 'foo' + i, 'bar' + i);
}
TestMapping(m, new Object, 'foobar');
}
TestArbitrary(new Map);
TestArbitrary(new WeakMap);
// Test direct constructor call
assertTrue(Set() instanceof Set);
assertTrue(Map() instanceof Map);
assertTrue(WeakMap() instanceof WeakMap);
// Test whether NaN values as keys are treated correctly.
var s = new Set;
assertFalse(s.has(NaN));
assertFalse(s.has(NaN + 1));
assertFalse(s.has(23));
s.add(NaN);
assertTrue(s.has(NaN));
assertTrue(s.has(NaN + 1));
assertFalse(s.has(23));
var m = new Map;
assertFalse(m.has(NaN));
assertFalse(m.has(NaN + 1));
assertFalse(m.has(23));
m.set(NaN, 'a-value');
assertTrue(m.has(NaN));
assertTrue(m.has(NaN + 1));
assertFalse(m.has(23));
// Test some common JavaScript idioms for Sets
var s = new Set;
assertTrue(s instanceof Set);
assertTrue(Set.prototype.add instanceof Function)
assertTrue(Set.prototype.has instanceof Function)
assertTrue(Set.prototype.delete instanceof Function)
// Test some common JavaScript idioms for Maps
var m = new Map;
assertTrue(m instanceof Map);
assertTrue(Map.prototype.set instanceof Function)
assertTrue(Map.prototype.get instanceof Function)
assertTrue(Map.prototype.has instanceof Function)
assertTrue(Map.prototype.delete instanceof Function)
// Test some common JavaScript idioms for WeakMaps
var m = new WeakMap;
assertTrue(m instanceof WeakMap);
assertTrue(WeakMap.prototype.set instanceof Function)
assertTrue(WeakMap.prototype.get instanceof Function)
assertTrue(WeakMap.prototype.has instanceof Function)
assertTrue(WeakMap.prototype.delete instanceof Function)
// Regression test for WeakMap prototype.
assertTrue(WeakMap.prototype.constructor === WeakMap)
assertTrue(Object.getPrototypeOf(WeakMap.prototype) === Object.prototype)
// Regression test for issue 1617: The prototype of the WeakMap constructor
// needs to be unique (i.e. different from the one of the Object constructor).
assertFalse(WeakMap.prototype === Object.prototype);
var o = Object.create({});
assertFalse("get" in o);
assertFalse("set" in o);
assertEquals(undefined, o.get);
assertEquals(undefined, o.set);
var o = Object.create({}, { myValue: {
value: 10,
enumerable: false,
configurable: true,
writable: true
}});
assertEquals(10, o.myValue);
// Regression test for issue 1884: Invoking any of the methods for Harmony
// maps, sets, or weak maps, with a wrong type of receiver should be throwing
// a proper TypeError.
var alwaysBogus = [ undefined, null, true, "x", 23, {} ];
var bogusReceiversTestSet = [
{ proto: Set.prototype,
funcs: [ 'add', 'has', 'delete' ],
receivers: alwaysBogus.concat([ new Map, new WeakMap ]),
},
{ proto: Map.prototype,
funcs: [ 'get', 'set', 'has', 'delete' ],
receivers: alwaysBogus.concat([ new Set, new WeakMap ]),
},
{ proto: WeakMap.prototype,
funcs: [ 'get', 'set', 'has', 'delete' ],
receivers: alwaysBogus.concat([ new Set, new Map ]),
},
];
function TestBogusReceivers(testSet) {
for (var i = 0; i < testSet.length; i++) {
var proto = testSet[i].proto;
var funcs = testSet[i].funcs;
var receivers = testSet[i].receivers;
for (var j = 0; j < funcs.length; j++) {
var func = proto[funcs[j]];
for (var k = 0; k < receivers.length; k++) {
assertThrows(function () { func.call(receivers[k], {}) }, TypeError);
}
}
}
}
TestBogusReceivers(bogusReceiversTestSet);
// Stress Test
// There is a proposed stress-test available at the es-discuss mailing list
// which cannot be reasonably automated. Check it out by hand if you like:
// https://mail.mozilla.org/pipermail/es-discuss/2011-May/014096.html