gecko-dev/dom/workers/test/test_sharedWorker.html

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<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE HTML>
<html>
<head>
<title>Test for SharedWorker</title>
<script src="/tests/SimpleTest/SimpleTest.js">
</script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
<script class="testbody">
"use strict";
const swPref = "dom.workers.sharedWorkers.enabled";
const href = window.location.href;
const filename = "sharedWorker_sharedWorker.js";
const sentMessage = "ping";
const errorFilename = href.substring(0, href.lastIndexOf("/") + 1) +
filename;
const errorLine = 86;
const errorColumn = 0;
if (!SpecialPowers.getBoolPref(swPref)) {
ok(!("SharedWorker" in window), "No SharedWorker without pref set");
}
SpecialPowers.pushPrefEnv({ set: [[swPref, true]] }, function() {
var worker = new SharedWorker(filename);
ok(worker instanceof SharedWorker, "Got SharedWorker instance");
ok(!("postMessage" in worker), "SharedWorker has no 'postMessage'");
ok(worker.port instanceof MessagePort,
"Shared worker has MessagePort");
var receivedMessage;
var receivedError;
worker.port.onmessage = function(event) {
ok(event instanceof MessageEvent, "Got a MessageEvent");
ok(event.target === worker.port,
"MessageEvent has correct 'target' property");
is(event.data, sentMessage, "Got correct message");
ok(receivedMessage === undefined, "Haven't gotten message yet");
ok(receivedError === undefined, "Haven't gotten error yet");
receivedMessage = event.data;
};
worker.onerror = function(event) {
ok(event instanceof ErrorEvent, "Got an ErrorEvent");
is(event.message, "Error: " + sentMessage, "Got correct error");
is(event.filename, errorFilename, "Got correct filename");
is(event.lineno, errorLine, "Got correct lineno");
is(event.colno, errorColumn, "Got correct column");
ok(receivedMessage !== undefined, "Got message already");
ok(receivedError === undefined, "Haven't gotten error yet");
receivedError = event.message;
event.preventDefault();
SimpleTest.finish();
};
worker.port.postMessage(sentMessage);
});
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body>
</html>