Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 only listen to uncaught exceptions and |
| 8 | // an exception is thrown in the Promise constructor, but caught in an |
| 9 | // inner try-catch. The Promise is rejected afterwards. |
| 10 | // We expect an Exception debug event with a promise to be triggered. |
| 11 | |
| 12 | Debug = debug.Debug; |
| 13 | |
| 14 | var step = 0; |
| 15 | var exception = null; |
| 16 | |
| 17 | function listener(event, exec_state, event_data, data) { |
| 18 | try { |
| 19 | if (event == Debug.DebugEvent.Exception) { |
| 20 | assertEquals(0, step); |
| 21 | assertEquals("uncaught", event_data.exception().message); |
| 22 | assertTrue(event_data.promise() instanceof Promise); |
| 23 | assertTrue(event_data.uncaught()); |
| 24 | // Assert that the debug event is triggered at the throw site. |
| 25 | assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); |
| 26 | step++; |
| 27 | } |
| 28 | } catch (e) { |
| 29 | exception = e; |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | Debug.setBreakOnUncaughtException(); |
| 34 | Debug.setListener(listener); |
| 35 | |
| 36 | var p = new Promise(function(resolve, reject) { |
| 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 |
| 41 | }); |
| 42 | |
| 43 | assertEquals(1, step); |
| 44 | assertNull(exception); |