<body>
<p>Test that destroying a document doesn't cause a crash when posting a message to a MessagePort it owned.</p>
<pre id=log></pre>
<script src="../../resources/gc.js"></script>
<script>
function log(message)
{
document.getElementById("log").innerHTML += message + "<br>";
}
if (window.testRunner) {
testRunner.dumpAsText();
testRunner.waitUntilDone();
}
var mainPort;
function test()
{
var channel = new MessageChannel;
window.frames[0].postMessage("msg", "*", [channel.port2]);
mainPort = channel.port1;
mainPort.start();
mainPort.postMessage("ping");
mainPort.onmessage = test2;
}
function test2()
{
var frameElement = document.getElementsByTagName("iframe")[0];
frameElement.parentNode.removeChild(frameElement);
frameElement = null;
gc();
setTimeout(test3, 10);
}
function test3()
{
gc();
mainPort.postMessage("ping");
mainPort.onmessage = function(evt) {
if (evt.data == "pong")
log("Unexpected response: FAIL");
};
setTimeout(test4, 10);
}
function test4()
{
mainPort.close();
log("Didn't crash: SUCCESS");
if (window.testRunner)
testRunner.notifyDone();
}
</script>
<iframe src="resources/message-port-iframe.html" onload="test()"></iframe>
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