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| 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --expose-debug-as debug --harmony-promises |
| 6 // Test the mirror object for promises. |
| 7 |
| 8 function MirrorRefCache(json_refs) { |
| 9 var tmp = eval('(' + json_refs + ')'); |
| 10 this.refs_ = []; |
| 11 for (var i = 0; i < tmp.length; i++) { |
| 12 this.refs_[tmp[i].handle] = tmp[i]; |
| 13 } |
| 14 } |
| 15 |
| 16 MirrorRefCache.prototype.lookup = function(handle) { |
| 17 return this.refs_[handle]; |
| 18 } |
| 19 |
| 20 function testPromiseMirror(promise, status) { |
| 21 // Create mirror and JSON representation. |
| 22 var mirror = debug.MakeMirror(promise); |
| 23 var serializer = debug.MakeMirrorSerializer(); |
| 24 var json = JSON.stringify(serializer.serializeValue(mirror)); |
| 25 var refs = new MirrorRefCache( |
| 26 JSON.stringify(serializer.serializeReferencedObjects())); |
| 27 |
| 28 // Check the mirror hierachy. |
| 29 assertTrue(mirror instanceof debug.Mirror); |
| 30 assertTrue(mirror instanceof debug.ValueMirror); |
| 31 assertTrue(mirror instanceof debug.ObjectMirror); |
| 32 assertTrue(mirror instanceof debug.PromiseMirror); |
| 33 |
| 34 // Check the mirror properties. |
| 35 assertEquals(status, mirror.status()); |
| 36 assertTrue(mirror.isPromise()); |
| 37 assertEquals('promise', mirror.type()); |
| 38 assertFalse(mirror.isPrimitive()); |
| 39 assertEquals("Object", mirror.className()); |
| 40 assertEquals("#<Promise>", mirror.toText()); |
| 41 assertSame(promise, mirror.value()); |
| 42 |
| 43 // Parse JSON representation and check. |
| 44 var fromJSON = eval('(' + json + ')'); |
| 45 assertEquals('promise', fromJSON.type); |
| 46 assertEquals('Object', fromJSON.className); |
| 47 assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type); |
| 48 assertEquals('Promise', refs.lookup(fromJSON.constructorFunction.ref).name); |
| 49 assertEquals(status, fromJSON.status); |
| 50 |
| 51 } |
| 52 |
| 53 // Test a number of different promises. |
| 54 var resolved = new Promise(function(resolve, reject) { resolve() }); |
| 55 var rejected = new Promise(function(resolve, reject) { reject() }); |
| 56 var pending = new Promise(function(resolve, reject) {}); |
| 57 |
| 58 testPromiseMirror(resolved, "resolved"); |
| 59 testPromiseMirror(rejected, "rejected"); |
| 60 testPromiseMirror(pending, "pending"); |
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