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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 --allow-natives-syntax | |
6 | |
7 // Test debug events when we only listen to uncaught exceptions and | |
8 // there is no 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 p = new Promise(function(resolve, reject) { | |
17 log.push("resolve"); | |
18 resolve(); | |
19 }); | |
20 | |
21 var q = p.then( | |
22 function() { | |
23 log.push("reject"); | |
24 return Promise.reject(Error("uncaught reject")); // event | |
25 }); | |
26 | |
27 function listener(event, exec_state, event_data, data) { | |
28 try { | |
29 if (event == Debug.DebugEvent.Exception) { | |
30 expected_events--; | |
31 assertTrue(expected_events >= 0); | |
32 assertEquals("uncaught reject", event_data.exception().message); | |
33 assertTrue(event_data.promise() instanceof Promise); | |
34 assertSame(q, event_data.promise()); | |
35 assertTrue(event_data.uncaught()); | |
36 // The JavaScript frame is from the Promise rejection | |
37 assertTrue(/Promise\.reject/.test(event_data.sourceLineText())); | |
38 } | |
39 } catch (e) { | |
40 %AbortJS(e + "\n" + e.stack); | |
41 } | |
42 } | |
43 | |
44 Debug.setBreakOnUncaughtException(); | |
45 Debug.setListener(listener); | |
46 | |
47 log.push("end main"); | |
48 | |
49 function testDone(iteration) { | |
50 function checkResult() { | |
51 try { | |
52 assertTrue(iteration < 10); | |
53 if (expected_events === 0) { | |
54 assertEquals(["resolve", "end main", "reject"], log); | |
55 } else { | |
56 testDone(iteration + 1); | |
57 } | |
58 } catch (e) { | |
59 %AbortJS(e + "\n" + e.stack); | |
60 } | |
61 } | |
62 | |
63 %EnqueueMicrotask(checkResult); | |
64 } | |
65 | |
66 testDone(0); | |
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