v8/test/mjsunit/es6/debug-promises/reject-uncaught-late.js
yangguo@chromium.org 0c32d8c5cb Fix debug-promises tests.
Using assertEquals on two Promises always passes. Use assertSame instead.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/455683002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22995 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-08-08 11:57:51 +00:00

77 lines
2.0 KiB
JavaScript

// 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 a 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 reject_closure;
var p = new Promise(function(resolve, reject) {
log.push("postpone p");
reject_closure = reject;
});
var q = new Promise(function(resolve, reject) {
log.push("resolve q");
resolve();
});
q.then(function() {
log.push("reject p");
reject_closure(new Error("uncaught reject p")); // event
})
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Exception) {
expected_events--;
assertTrue(expected_events >= 0);
assertEquals("uncaught reject p", event_data.exception().message);
assertTrue(event_data.promise() instanceof Promise);
assertSame(p, event_data.promise());
assertTrue(event_data.uncaught());
// Assert that the debug event is triggered at the throw site.
assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
}
} 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(["postpone p", "resolve q", "end main", "reject p"], log);
} else {
testDone(iteration + 1);
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
// Run testDone through the Object.observe processing loop.
var dummy = {};
Object.observe(dummy, checkResult);
dummy.dummy = dummy;
}
testDone(0);