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// Copyright 2015 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 a
// Promise p3 created by Promise.all has no catch handler, and is rejected
// because one of the Promises p2 passed to Promise.all is rejected.
// We expect one event for p2; the system recognizes the rejection of p3
// to be redundant and based on the rejection of p2 and does not trigger
// an additional rejection.
var Debug = debug.Debug;
var expected_events = 1;
var log = [];
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Exception) return;
try {
expected_events--;
assertTrue(expected_events >= 0);
assertEquals("uncaught", event_data.exception().message);
assertTrue(event_data.promise() instanceof Promise);
// Assert that the debug event is triggered at the throw site.
assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
assertEquals("p2", event_data.promise().name);
assertTrue(event_data.uncaught());
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
Debug.setBreakOnUncaughtException();
Debug.setListener(listener);
var p1 = Promise.resolve();
p1.name = "p1";
var p2 = p1.then(function() {
log.push("throw");
throw new Error("uncaught"); // event
});
p2.name = "p2";
var p3 = Promise.all([p2]);
p3.name = "p3";
log.push("end main");
function testDone(iteration) {
function checkResult() {
try {
assertTrue(iteration < 10);
if (expected_events === 0) {
assertEquals(["end main", "throw"], log);
} else {
testDone(iteration + 1);
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
%EnqueueMicrotask(checkResult);
}
testDone(0);
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