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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 | |
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, value) { | |
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 assertTrue(mirror.promiseValue() instanceof debug.Mirror); | |
43 assertEquals(value, mirror.promiseValue().value()); | |
44 | |
45 // Parse JSON representation and check. | |
46 var fromJSON = eval('(' + json + ')'); | |
47 assertEquals('promise', fromJSON.type); | |
48 assertEquals('Object', fromJSON.className); | |
49 assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type); | |
50 assertEquals('Promise', refs.lookup(fromJSON.constructorFunction.ref).name); | |
51 assertEquals(status, fromJSON.status); | |
52 assertEquals(value, refs.lookup(fromJSON.promiseValue.ref).value); | |
53 } | |
54 | |
55 // Test a number of different promises. | |
56 var resolved = new Promise(function(resolve, reject) { resolve() }); | |
57 var rejected = new Promise(function(resolve, reject) { reject() }); | |
58 var pending = new Promise(function(resolve, reject) {}); | |
59 | |
60 testPromiseMirror(resolved, "resolved", undefined); | |
61 testPromiseMirror(rejected, "rejected", undefined); | |
62 testPromiseMirror(pending, "pending", undefined); | |
63 | |
64 var resolvedv = new Promise(function(resolve, reject) { resolve('resolve') }); | |
65 var rejectedv = new Promise(function(resolve, reject) { reject('reject') }); | |
66 var thrownv = new Promise(function(resolve, reject) { throw 'throw' }); | |
67 | |
68 testPromiseMirror(resolvedv, "resolved", 'resolve'); | |
69 testPromiseMirror(rejectedv, "rejected", 'reject'); | |
70 testPromiseMirror(thrownv, "rejected", 'throw'); | |
71 | |
72 // Test internal properties of different promises. | |
73 var m1 = debug.MakeMirror(new Promise( | |
74 function(resolve, reject) { resolve(1) })); | |
75 var ip = m1.internalProperties(); | |
76 assertEquals(2, ip.length); | |
77 assertEquals("[[PromiseStatus]]", ip[0].name()); | |
78 assertEquals("[[PromiseValue]]", ip[1].name()); | |
79 assertEquals("resolved", ip[0].value().value()); | |
80 assertEquals(1, ip[1].value().value()); | |
81 | |
82 var m2 = debug.MakeMirror(new Promise(function(resolve, reject) { reject(2) })); | |
83 ip = m2.internalProperties(); | |
84 assertEquals("rejected", ip[0].value().value()); | |
85 assertEquals(2, ip[1].value().value()); | |
86 | |
87 var m3 = debug.MakeMirror(new Promise(function(resolve, reject) { })); | |
88 ip = m3.internalProperties(); | |
89 assertEquals("pending", ip[0].value().value()); | |
90 assertEquals("undefined", typeof(ip[1].value().value())); | |
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