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: --expose-debug-as debug --allow-natives-syntax
7 // Test debug events when we only listen to uncaught exceptions and
8 // there is a catch handler for the to-be-rejected Promise.
9 // We expect an Exception debug event with a promise to be triggered.
13 var expected_events = 1;
18 var p = new Promise(function(resolve, reject) {
19 log.push("postpone p");
20 reject_closure = reject;
23 var q = new Promise(function(resolve, reject) {
24 log.push("resolve q");
30 reject_closure(new Error("uncaught reject p")); // event
34 function listener(event, exec_state, event_data, data) {
36 if (event == Debug.DebugEvent.Exception) {
38 assertTrue(expected_events >= 0);
39 assertEquals("uncaught reject p", event_data.exception().message);
40 assertTrue(event_data.promise() instanceof Promise);
41 assertSame(p, event_data.promise());
42 assertTrue(event_data.uncaught());
43 // Assert that the debug event is triggered at the throw site.
44 assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
47 %AbortJS(e + "\n" + e.stack);
51 Debug.setBreakOnUncaughtException();
52 Debug.setListener(listener);
56 function testDone(iteration) {
57 function checkResult() {
59 assertTrue(iteration < 10);
60 if (expected_events === 0) {
61 assertEquals(["postpone p", "resolve q", "end main", "reject p"], log);
63 testDone(iteration + 1);
66 %AbortJS(e + "\n" + e.stack);
70 // Run testDone through the Object.observe processing loop.
72 Object.observe(dummy, checkResult);