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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.
// Test debug events when a Promise is rejected, which is caught by a custom
// promise, which has a number for reject closure. We expect an Exception debug
// events trying to call the invalid reject closure.
Debug = debug.Debug;
var expected_events = 1;
var log = [];
var p = new Promise(function(resolve, reject) {
log.push("resolve");
resolve();
});
function MyPromise(resolver) {
var reject = 1;
var resolve = function() { };
log.push("construct");
resolver(resolve, reject);
};
MyPromise.prototype = new Promise(function() {});
p.constructor = MyPromise;
var q = p.then(
function() {
log.push("reject caught");
return Promise.reject(new Error("caught"));
});
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Exception) {
expected_events--;
assertTrue(expected_events >= 0);
assertEquals("number is not a function", event_data.exception().message);
// All of the frames on the stack are from native Javascript.
assertEquals(0, exec_state.frameCount());
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
Debug.setBreakOnUncaughtException();
Debug.setListener(listener);
function testDone(iteration) {
function checkResult() {
try {
assertTrue(iteration < 10);
if (expected_events === 0) {
assertEquals(["resolve", "construct", "end main", "reject caught"],
log);
} else {
testDone(iteration + 1);
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
%EnqueueMicrotask(checkResult);
}
testDone(0);
log.push("end main");
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