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Issue 2566103002: [debug-wrappers] remove mirror tests. (Closed)
Patch Set: Created 4 years ago
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1 // Copyright 2016 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-async-await --allow-natives-syntax
6 // Test the mirror object for promises.
7
8 var AsyncFunction = (async function() {}).constructor;
9
10 function MirrorRefCache(json_refs) {
11 var tmp = eval('(' + json_refs + ')');
12 this.refs_ = [];
13 for (var i = 0; i < tmp.length; i++) {
14 this.refs_[tmp[i].handle] = tmp[i];
15 }
16 }
17
18 MirrorRefCache.prototype.lookup = function(handle) {
19 return this.refs_[handle];
20 }
21
22 function testPromiseMirror(promise, status, value) {
23 // Create mirror and JSON representation.
24 var mirror = debug.MakeMirror(promise);
25 var serializer = debug.MakeMirrorSerializer();
26 var json = JSON.stringify(serializer.serializeValue(mirror));
27 var refs = new MirrorRefCache(
28 JSON.stringify(serializer.serializeReferencedObjects()));
29
30 // Check the mirror hierachy.
31 assertTrue(mirror instanceof debug.Mirror);
32 assertTrue(mirror instanceof debug.ValueMirror);
33 assertTrue(mirror instanceof debug.ObjectMirror);
34 assertTrue(mirror instanceof debug.PromiseMirror);
35
36 // Check the mirror properties.
37 assertEquals(status, mirror.status());
38 assertTrue(mirror.isPromise());
39 assertEquals('promise', mirror.type());
40 assertFalse(mirror.isPrimitive());
41 assertEquals("Object", mirror.className());
42 assertEquals("#<Promise>", mirror.toText());
43 assertSame(promise, mirror.value());
44 assertTrue(mirror.promiseValue() instanceof debug.Mirror);
45 assertEquals(value, mirror.promiseValue().value());
46
47 // Parse JSON representation and check.
48 var fromJSON = eval('(' + json + ')');
49 assertEquals('promise', fromJSON.type);
50 assertEquals('Object', fromJSON.className);
51 assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type);
52 assertEquals('Promise', refs.lookup(fromJSON.constructorFunction.ref).name);
53 assertEquals(status, fromJSON.status);
54 assertEquals(value, refs.lookup(fromJSON.promiseValue.ref).value);
55 }
56
57 // Test a number of different promises.
58 var resolved = (async function() {})();
59 var rejected = (async function() { throw undefined; })();
60 var pending = (async function() { await 1; })();
61
62 testPromiseMirror(resolved, "resolved", undefined);
63 testPromiseMirror(rejected, "rejected", undefined);
64 testPromiseMirror(pending, "pending", undefined);
65
66 var resolvedv = (async function() { return "resolve"; })();
67 var rejectedv = (async function() { return Promise.reject("reject"); })();
68 var thrownv = (async function() { throw "throw"; })();
69
70 testPromiseMirror(resolvedv, "resolved", 'resolve');
71 testPromiseMirror(rejectedv, "rejected", 'reject');
72 testPromiseMirror(thrownv, "rejected", 'throw');
73
74 // Test internal properties of different promises.
75 var m1 = debug.MakeMirror((async function() { return 1; })());
76 var ip = m1.internalProperties();
77 assertEquals(2, ip.length);
78 assertEquals("[[PromiseStatus]]", ip[0].name());
79 assertEquals("[[PromiseValue]]", ip[1].name());
80 assertEquals("resolved", ip[0].value().value());
81 assertEquals(1, ip[1].value().value());
82
83 var m2 = debug.MakeMirror((async function() { throw 2; })());
84 ip = m2.internalProperties();
85 assertEquals("rejected", ip[0].value().value());
86 assertEquals(2, ip[1].value().value());
87
88 var m3 = debug.MakeMirror((async function() { await 1; })());
89 ip = m3.internalProperties();
90 assertEquals("pending", ip[0].value().value());
91 assertEquals("undefined", typeof(ip[1].value().value()));
92
93 %RunMicrotasks();
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