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. 9 // We expect an Exception debug event with a promise to be triggered. 10 11 Debug = debug.Debug; 12 13 var step = 0; 14 var exception = null; 15 16 function listener(event, exec_state, event_data, data) { 17 try { 18 if (event == Debug.DebugEvent.Exception) { 19 assertEquals(0, step); 20 assertEquals("uncaught", event_data.exception().message); 21 assertTrue(event_data.promise() instanceof Promise); 22 assertTrue(event_data.uncaught()); 23 // Assert that the debug event is triggered at the throw site. 24 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0); 25 step++; 26 } 27 } catch (e) { 28 exception = e; 29 } 30 } 31 32 Debug.setBreakOnUncaughtException(); 33 Debug.setListener(listener); 34 35 var p = new Promise(function(resolve, reject) { 36 throw new Error("uncaught"); // event 37 }); 38 39 assertEquals(1, step); 40 assertNull(exception); 41
