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// 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 --allow-natives-syntax
// Test debug events when we only listen to uncaught exceptions and
// there is no catch handler for the to-be-rejected Promise.
// We expect an Exception debug event with a promise to be triggered.
Debug = debug.Debug;
var expected_events = 1;
var log = [];
var p = new Promise(function(resolve, reject) {
log.push("resolve");
resolve();
});
var q = p.then(
function() {
log.push("reject");
return Promise.reject(Error("uncaught reject")); // event
});
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Exception) {
expected_events--;
assertTrue(expected_events >= 0);
assertEquals("uncaught reject", event_data.exception().message);
assertTrue(event_data.promise() instanceof Promise);
assertSame(q, event_data.promise());
assertTrue(event_data.uncaught());
// The JavaScript frame is from the Promise rejection
assertTrue(/Promise\.reject/.test(event_data.sourceLineText()));
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
Debug.setBreakOnUncaughtException();
Debug.setListener(listener);
log.push("end main");
function testDone(iteration) {
function checkResult() {
try {
assertTrue(iteration < 10);
if (expected_events === 0) {
assertEquals(["resolve", "end main", "reject"], log);
} else {
testDone(iteration + 1);
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
%EnqueueMicrotask(checkResult);
}
testDone(0);
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