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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 | |
7 // Test debug events when we listen to all exceptions and | |
8 // there is a catch handler for the exception thrown in a Promise. | |
9 // We expect a normal Exception debug event to be triggered. | |
10 | |
11 Debug = debug.Debug; | |
12 | |
13 var log = []; | |
14 var step = 0; | |
15 | |
16 var p = new Promise(function(resolve, reject) { | |
17 log.push("resolve"); | |
18 resolve(); | |
19 }); | |
20 | |
21 var q = p.chain( | |
22 function() { | |
23 log.push("throw"); | |
24 throw new Error("caught"); | |
25 }); | |
26 | |
27 q.catch( | |
28 function(e) { | |
29 assertEquals("caught", e.message); | |
30 }); | |
31 | |
32 function listener(event, exec_state, event_data, data) { | |
33 if (event == Debug.DebugEvent.AsyncTaskEvent) return; | |
34 try { | |
35 // Ignore exceptions during startup in stress runs. | |
36 if (step >= 1) return; | |
37 assertEquals(["resolve", "end main", "throw"], log); | |
38 if (event == Debug.DebugEvent.Exception) { | |
39 assertEquals("caught", event_data.exception().message); | |
40 assertEquals(undefined, event_data.promise()); | |
41 assertFalse(event_data.uncaught()); | |
42 step++; | |
43 } | |
44 } catch (e) { | |
45 // Signal a failure with exit code 1. This is necessary since the | |
46 // debugger swallows exceptions and we expect the chained function | |
47 // and this listener to be executed after the main script is finished. | |
48 print("Unexpected exception: " + e + "\n" + e.stack); | |
49 quit(1); | |
50 } | |
51 } | |
52 | |
53 Debug.setBreakOnException(); | |
54 Debug.setListener(listener); | |
55 | |
56 log.push("end main"); | |
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