// 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()));