| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --expose-debug-as debug |
| |
| // Test debug events when we only listen to uncaught exceptions and |
| // an exception is thrown in the Promise constructor, but caught in an |
| // inner try-catch. The Promise is rejected afterwards. |
| // We expect an Exception debug event with a promise to be triggered. |
| |
| Debug = debug.Debug; |
| |
| var step = 0; |
| var exception = null; |
| |
| function listener(event, exec_state, event_data, data) { |
| try { |
| if (event == Debug.DebugEvent.Exception) { |
| assertEquals(0, step); |
| assertEquals("uncaught", event_data.exception().message); |
| assertTrue(event_data.promise() instanceof Promise); |
| assertTrue(event_data.uncaught()); |
| // Assert that the debug event is triggered at the throw site. |
| assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); |
| step++; |
| } |
| } catch (e) { |
| exception = e; |
| } |
| } |
| |
| Debug.setBreakOnUncaughtException(); |
| Debug.setListener(listener); |
| |
| var p = new Promise(function(resolve, reject) { |
| try { // This try-catch must not prevent this uncaught reject event. |
| throw new Error("caught"); |
| } catch (e) { } |
| reject(new Error("uncaught")); // event |
| }); |
| |
| assertEquals(1, step); |
| assertNull(exception); |