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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --expose-debug-as debug | 5 // Flags: --expose-debug-as debug |
6 | 6 |
7 // Test debug events when we only listen to uncaught exceptions and | 7 // Test debug events when we only listen to uncaught exceptions and |
8 // an exception is thrown in the the Promise constructor. | 8 // an exception is thrown in the Promise constructor, but caught in an |
| 9 // inner try-catch. The Promise is rejected afterwards. |
9 // We expect an Exception debug event with a promise to be triggered. | 10 // We expect an Exception debug event with a promise to be triggered. |
10 | 11 |
11 Debug = debug.Debug; | 12 Debug = debug.Debug; |
12 | 13 |
13 var step = 0; | 14 var step = 0; |
14 var exception = null; | 15 var exception = null; |
15 | 16 |
16 function listener(event, exec_state, event_data, data) { | 17 function listener(event, exec_state, event_data, data) { |
17 try { | 18 try { |
18 // Ignore exceptions during startup in stress runs. | |
19 if (step >= 1) return; | |
20 if (event == Debug.DebugEvent.Exception) { | 19 if (event == Debug.DebugEvent.Exception) { |
21 assertEquals(0, step); | 20 assertEquals(0, step); |
22 assertEquals("uncaught", event_data.exception().message); | 21 assertEquals("uncaught", event_data.exception().message); |
23 assertTrue(event_data.promise() instanceof Promise); | 22 assertTrue(event_data.promise() instanceof Promise); |
24 assertTrue(event_data.uncaught()); | 23 assertTrue(event_data.uncaught()); |
25 // Assert that the debug event is triggered at the throw site. | 24 // Assert that the debug event is triggered at the throw site. |
26 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); | 25 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); |
27 step++; | 26 step++; |
28 } | 27 } |
29 } catch (e) { | 28 } catch (e) { |
30 // Signal a failure with exit code 1. This is necessary since the | |
31 // debugger swallows exceptions and we expect the chained function | |
32 // and this listener to be executed after the main script is finished. | |
33 print("Unexpected exception: " + e + "\n" + e.stack); | |
34 exception = e; | 29 exception = e; |
35 } | 30 } |
36 } | 31 } |
37 | 32 |
38 Debug.setBreakOnUncaughtException(); | 33 Debug.setBreakOnUncaughtException(); |
39 Debug.setListener(listener); | 34 Debug.setListener(listener); |
40 | 35 |
41 var p = new Promise(function(resolve, reject) { | 36 var p = new Promise(function(resolve, reject) { |
42 throw new Error("uncaught"); // event | 37 try { // This try-catch must not prevent this uncaught reject event. |
| 38 throw new Error("caught"); |
| 39 } catch (e) { } |
| 40 reject(new Error("uncaught")); // event |
43 }); | 41 }); |
44 | 42 |
45 assertEquals(1, step); | 43 assertEquals(1, step); |
46 assertNull(exception); | 44 assertNull(exception); |
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