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.
5 // Flags: --harmony-promises --expose-debug-as debug
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 an Exception debug event with a promise to be triggered.
15 var exception = undefined;
17 var p = new Promise(function(resolve, reject) {
25 throw new Error("uncaught"); // event
28 function listener(event, exec_state, event_data, data) {
30 // Ignore exceptions during startup in stress runs.
31 if (step >= 1) return;
32 assertEquals(["resolve", "end main", "throw"], log);
33 if (event == Debug.DebugEvent.Exception) {
34 assertEquals(0, step);
35 assertEquals("uncaught", event_data.exception().message);
36 assertTrue(event_data.promise() instanceof Promise);
37 assertEquals(q, event_data.promise());
38 assertTrue(event_data.uncaught());
39 // Assert that the debug event is triggered at the throw site.
40 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
44 // Signal a failure with exit code 1. This is necessary since the
45 // debugger swallows exceptions and we expect the chained function
46 // and this listener to be executed after the main script is finished.
47 print("Unexpected exception: " + e + "\n" + e.stack);
52 Debug.setBreakOnException();
53 Debug.setListener(listener);