OLD | NEW |
| (Empty) |
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 --allow-natives-syntax | |
6 | |
7 // Test debug events when we only listen to uncaught exceptions and | |
8 // there is a catch handler for the to-be-rejected Promise. | |
9 // We expect an Exception debug event with a promise to be triggered. | |
10 | |
11 Debug = debug.Debug; | |
12 | |
13 var expected_events = 1; | |
14 var log = []; | |
15 | |
16 var reject_closure; | |
17 | |
18 var p = new Promise(function(resolve, reject) { | |
19 log.push("postpone p"); | |
20 reject_closure = reject; | |
21 }); | |
22 | |
23 var q = new Promise(function(resolve, reject) { | |
24 log.push("resolve q"); | |
25 resolve(); | |
26 }); | |
27 | |
28 q.then(function() { | |
29 log.push("reject p"); | |
30 reject_closure(new Error("uncaught reject p")); // event | |
31 }) | |
32 | |
33 | |
34 function listener(event, exec_state, event_data, data) { | |
35 try { | |
36 if (event == Debug.DebugEvent.Exception) { | |
37 expected_events--; | |
38 assertTrue(expected_events >= 0); | |
39 assertEquals("uncaught reject p", event_data.exception().message); | |
40 assertTrue(event_data.promise() instanceof Promise); | |
41 assertSame(p, event_data.promise()); | |
42 assertTrue(event_data.uncaught()); | |
43 // Assert that the debug event is triggered at the throw site. | |
44 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); | |
45 } | |
46 } catch (e) { | |
47 %AbortJS(e + "\n" + e.stack); | |
48 } | |
49 } | |
50 | |
51 Debug.setBreakOnUncaughtException(); | |
52 Debug.setListener(listener); | |
53 | |
54 log.push("end main"); | |
55 | |
56 function testDone(iteration) { | |
57 function checkResult() { | |
58 try { | |
59 assertTrue(iteration < 10); | |
60 if (expected_events === 0) { | |
61 assertEquals(["postpone p", "resolve q", "end main", "reject p"], log); | |
62 } else { | |
63 testDone(iteration + 1); | |
64 } | |
65 } catch (e) { | |
66 %AbortJS(e + "\n" + e.stack); | |
67 } | |
68 } | |
69 | |
70 %EnqueueMicrotask(checkResult); | |
71 } | |
72 | |
73 testDone(0); | |
OLD | NEW |