gecko-dev/dom/base/test/test_messageChannel_transfe...

68 строки
2.0 KiB
HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=677638
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 677638 - port cloning</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=677638">Mozilla Bug 677638</a>
<div id="content"></div>
<pre id="test">
</pre>
<script type="application/javascript">
function start() {
var a = new MessageChannel();
ok(a, "MessageChannel created");
window.addEventListener('message', receiveMessage, false);
function receiveMessage(evt) {
if (evt.data.status == 'READY') {
runTest();
} else {
ok(false, "Unknown message");
}
}
var div = document.getElementById("content");
ok(div, "Parent exists");
var ifr = document.createElement("iframe");
ifr.addEventListener("load", iframeLoaded, false);
ifr.setAttribute('src', "iframe_messageChannel_post.html");
div.appendChild(ifr);
function iframeLoaded() {
ifr.contentWindow.postMessage({ port: a.port2 }, '*', [a.port2]);
}
a.port1.addEventListener('message', receivePortMessage, false);
function receivePortMessage(evt) {
is(evt.data.ab.byteLength, size, "The size is: " + size + " == " + ab.byteLength);
SimpleTest.finish();
}
// Start() is not implicity invoked when addEventListener is used.
a.port1.start();
var size = 1024 * 1024 * 32;
var ab = new ArrayBuffer(size);
is(ab.byteLength, size, "The size is: " + size + " == " + ab.byteLength);
function runTest() {
a.port1.postMessage({ab: ab, cb: ab}, [ab]);
ok(ab.byteLength == 0, "PostMessage - The size is: 0 == " + ab.byteLength)
}
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({"set": [["dom.messageChannel.enabled", true]]}, start);
</script>
</body>
</html>