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Side by Side Diff: test/mjsunit/es6/mirror-promises.js

Issue 2566103002: [debug-wrappers] remove mirror tests. (Closed)
Patch Set: Created 4 years ago
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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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