gecko-dev/dom/workers/test/test_multi_sharedWorker_lif...

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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">
<script class="testbody" type="text/javascript">
"use strict";
const scrollbarPref = "layout.testing.overlay-scrollbars.always-visible";
const viewersPref = "browser.sessionhistory.max_total_viewers";
const windowRelativeURL = "multi_sharedWorker_frame.html";
const storedData = "0123456789abcdefghijklmnopqrstuvwxyz";
let testGenerator = (function*() {
SimpleTest.waitForExplicitFinish();
// Force scrollbar to always be shown. The scrollbar setting is
// necessary to avoid the fade-in/fade-out from evicting our document
// from the BF cache below. If bug 1049277 is fixed, then we can
// stop setting the scrollbar pref here.
SpecialPowers.pushPrefEnv({ set: [[scrollbarPref, true],
[viewersPref, 10]] },
sendToGenerator);
yield undefined;
window.addEventListener("message", function(event) {
if (typeof(event.data) == "string") {
info(event.data);
} else {
sendToGenerator(event);
}
});
let testWin = window.open(windowRelativeURL, "testWin");
yield undefined;
testWin.postMessage({ command: "retrieve" }, "*");
let event = yield undefined;
ok(event instanceof MessageEvent, "Got a MessageEvent");
is(event.source, testWin, "Correct window got the event");
is(event.data.type, "result", "Got a result message");
is(event.data.data, undefined, "No data stored yet");
testWin.postMessage({ command: "store", data: storedData }, "*");
testWin.postMessage({ command: "retrieve" }, "*");
event = yield undefined;
ok(event instanceof MessageEvent, "Got a MessageEvent");
is(event.source, testWin, "Correct window got the event");
is(event.data.type, "result", "Got a result message");
is(event.data.data, storedData, "Got stored data");
// Navigate when the bfcache is disabled.
info("Navigating to a blank page");
testWin.onunload = function(){};;
testWin.location = "blank.html";
testWin.document.body.offsetTop;
yield undefined;
info("Navigating to " + windowRelativeURL);
testWin.onunload = function(){};
testWin.location = windowRelativeURL;
testWin.document.body.offsetTop;
yield undefined;
testWin.postMessage({ command: "retrieve" }, "*");
event = yield undefined;
ok(event instanceof MessageEvent, "Got a MessageEvent");
is(event.source, testWin, "Correct window got the event");
is(event.data.type, "result", "Got a result message");
is(event.data.data, undefined, "No data stored");
testWin.postMessage({ command: "store", data: storedData }, "*");
testWin.postMessage({ command: "retrieve" }, "*");
event = yield undefined;
ok(event instanceof MessageEvent, "Got a MessageEvent");
is(event.source, testWin, "Correct window got the event");
is(event.data.type, "result", "Got a result message");
is(event.data.data, storedData, "Got stored data");
// Navigate when the bfcache is enabled.
info("Navigating to a blank page");
testWin.location = "blank.html";
testWin.document.body.offsetTop;
yield undefined;
for (let i = 0; i < 3; i++) {
info("Running GC");
SpecialPowers.exactGC(sendToGenerator);
yield undefined;
// It seems using SpecialPowers.executeSoon() would make the
// entryGlobal being the BrowserChildGlobal (and that would make the
// baseURI in the location assignment below being incorrect);
// setTimeout on the otherhand ensures the entryGlobal is this
// window.
info("Waiting the event queue to clear");
setTimeout(sendToGenerator, 0);
yield undefined;
}
info("Navigating to " + windowRelativeURL);
testWin.location = windowRelativeURL;
testWin.document.body.offsetTop;
yield undefined;
testWin.postMessage({ command: "retrieve" }, "*");
event = yield undefined;
ok(event instanceof MessageEvent, "Got a MessageEvent");
is(event.source, testWin, "Correct window got the event");
is(event.data.type, "result", "Got a result message");
is(event.data.data, storedData, "Still have data stored");
window.removeEventListener("message", sendToGenerator);
testWin.close();
SimpleTest.finish();
})();
let sendToGenerator = testGenerator.next.bind(testGenerator);
</script>
</head>
<body onload="testGenerator.next();">
</body>
</html>