mirror of https://github.com/lukechilds/node.git
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70 lines
2.6 KiB
70 lines
2.6 KiB
11 years ago
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-debug-as debug --harmony-promises
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// Test the mirror object for promises.
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function MirrorRefCache(json_refs) {
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var tmp = eval('(' + json_refs + ')');
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this.refs_ = [];
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for (var i = 0; i < tmp.length; i++) {
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this.refs_[tmp[i].handle] = tmp[i];
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}
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}
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MirrorRefCache.prototype.lookup = function(handle) {
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return this.refs_[handle];
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}
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function testPromiseMirror(promise, status, value) {
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// Create mirror and JSON representation.
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var mirror = debug.MakeMirror(promise);
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var serializer = debug.MakeMirrorSerializer();
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var json = JSON.stringify(serializer.serializeValue(mirror));
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var refs = new MirrorRefCache(
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JSON.stringify(serializer.serializeReferencedObjects()));
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// Check the mirror hierachy.
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assertTrue(mirror instanceof debug.Mirror);
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assertTrue(mirror instanceof debug.ValueMirror);
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assertTrue(mirror instanceof debug.ObjectMirror);
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assertTrue(mirror instanceof debug.PromiseMirror);
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// Check the mirror properties.
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assertEquals(status, mirror.status());
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assertTrue(mirror.isPromise());
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assertEquals('promise', mirror.type());
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assertFalse(mirror.isPrimitive());
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assertEquals("Object", mirror.className());
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assertEquals("#<Promise>", mirror.toText());
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assertSame(promise, mirror.value());
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assertEquals(value, mirror.promiseValue());
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// Parse JSON representation and check.
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var fromJSON = eval('(' + json + ')');
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assertEquals('promise', fromJSON.type);
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assertEquals('Object', fromJSON.className);
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assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type);
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assertEquals('Promise', refs.lookup(fromJSON.constructorFunction.ref).name);
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assertEquals(status, fromJSON.status);
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assertEquals(value, fromJSON.promiseValue);
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}
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// Test a number of different promises.
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var resolved = new Promise(function(resolve, reject) { resolve() });
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var rejected = new Promise(function(resolve, reject) { reject() });
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var pending = new Promise(function(resolve, reject) {});
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testPromiseMirror(resolved, "resolved", undefined);
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testPromiseMirror(rejected, "rejected", undefined);
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testPromiseMirror(pending, "pending", undefined);
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var resolvedv = new Promise(function(resolve, reject) { resolve('resolve') });
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var rejectedv = new Promise(function(resolve, reject) { reject('reject') });
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var thrownv = new Promise(function(resolve, reject) { throw 'throw' });
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testPromiseMirror(resolvedv, "resolved", 'resolve');
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testPromiseMirror(rejectedv, "rejected", 'reject');
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testPromiseMirror(thrownv, "rejected", 'throw');
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