| // 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: --expose-debug-as debug |
| // Test the mirror object for promises. |
| |
| function MirrorRefCache(json_refs) { |
| var tmp = eval('(' + json_refs + ')'); |
| this.refs_ = []; |
| for (var i = 0; i < tmp.length; i++) { |
| this.refs_[tmp[i].handle] = tmp[i]; |
| } |
| } |
| |
| MirrorRefCache.prototype.lookup = function(handle) { |
| return this.refs_[handle]; |
| } |
| |
| function testPromiseMirror(promise, status, value) { |
| // Create mirror and JSON representation. |
| var mirror = debug.MakeMirror(promise); |
| var serializer = debug.MakeMirrorSerializer(); |
| var json = JSON.stringify(serializer.serializeValue(mirror)); |
| var refs = new MirrorRefCache( |
| JSON.stringify(serializer.serializeReferencedObjects())); |
| |
| // Check the mirror hierachy. |
| assertTrue(mirror instanceof debug.Mirror); |
| assertTrue(mirror instanceof debug.ValueMirror); |
| assertTrue(mirror instanceof debug.ObjectMirror); |
| assertTrue(mirror instanceof debug.PromiseMirror); |
| |
| // Check the mirror properties. |
| assertEquals(status, mirror.status()); |
| assertTrue(mirror.isPromise()); |
| assertEquals('promise', mirror.type()); |
| assertFalse(mirror.isPrimitive()); |
| assertEquals("Object", mirror.className()); |
| assertEquals("#<Promise>", mirror.toText()); |
| assertSame(promise, mirror.value()); |
| assertTrue(mirror.promiseValue() instanceof debug.Mirror); |
| assertEquals(value, mirror.promiseValue().value()); |
| |
| // Parse JSON representation and check. |
| var fromJSON = eval('(' + json + ')'); |
| assertEquals('promise', fromJSON.type); |
| assertEquals('Object', fromJSON.className); |
| assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type); |
| assertEquals('Promise', refs.lookup(fromJSON.constructorFunction.ref).name); |
| assertEquals(status, fromJSON.status); |
| assertEquals(value, refs.lookup(fromJSON.promiseValue.ref).value); |
| } |
| |
| // Test a number of different promises. |
| var resolved = new Promise(function(resolve, reject) { resolve() }); |
| var rejected = new Promise(function(resolve, reject) { reject() }); |
| var pending = new Promise(function(resolve, reject) {}); |
| |
| testPromiseMirror(resolved, "resolved", undefined); |
| testPromiseMirror(rejected, "rejected", undefined); |
| testPromiseMirror(pending, "pending", undefined); |
| |
| var resolvedv = new Promise(function(resolve, reject) { resolve('resolve') }); |
| var rejectedv = new Promise(function(resolve, reject) { reject('reject') }); |
| var thrownv = new Promise(function(resolve, reject) { throw 'throw' }); |
| |
| testPromiseMirror(resolvedv, "resolved", 'resolve'); |
| testPromiseMirror(rejectedv, "rejected", 'reject'); |
| testPromiseMirror(thrownv, "rejected", 'throw'); |
| |
| // Test internal properties of different promises. |
| var m1 = debug.MakeMirror(new Promise( |
| function(resolve, reject) { resolve(1) })); |
| var ip = m1.internalProperties(); |
| assertEquals(2, ip.length); |
| assertEquals("[[PromiseStatus]]", ip[0].name()); |
| assertEquals("[[PromiseValue]]", ip[1].name()); |
| assertEquals("resolved", ip[0].value().value()); |
| assertEquals(1, ip[1].value().value()); |
| |
| var m2 = debug.MakeMirror(new Promise(function(resolve, reject) { reject(2) })); |
| ip = m2.internalProperties(); |
| assertEquals("rejected", ip[0].value().value()); |
| assertEquals(2, ip[1].value().value()); |
| |
| var m3 = debug.MakeMirror(new Promise(function(resolve, reject) { })); |
| ip = m3.internalProperties(); |
| assertEquals("pending", ip[0].value().value()); |
| assertEquals("undefined", typeof(ip[1].value().value())); |