<!DOCTYPEHTML>
<html>
<head>
<meta charset="utf-8">
<title>Test for bfcache and BroadcastChannel</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<script type="application/javascript">
/*
* The test opens a new window. Then a message 'load' is sent there to load
* another page. If expectedPersisted is false, a dummy message is sent
* through a BroadcastChannel which the first has registered to use.
* That should evict the page from bfcache.
* 'back' message is sent to call history.back().
* The page which is loaded from session history should be persisted if
* expectedPersisted is true.
*/
SimpleTest.waitForExplicitFinish(); var testUrl1 = "testUrl1_bfcache.html";
function executeTest() { var bc1 = SpecialPowers.wrap(BroadcastChannel).unpartitionedTestingChannel("testUrl1_bfcache"); var bc2 = SpecialPowers.wrap(BroadcastChannel).unpartitionedTestingChannel("testUrl2_bfcache");
bc1.onmessage = function(event) {
if (event.data == "closed") {
info("Closed");
runTest();
return;
}
page1Shown(event.data);
};
bc2.onmessage = function(event) { page2Shown(event.data); };
var counter = 0; var expectedPersisted = false; var bc = SpecialPowers.wrap(BroadcastChannel).unpartitionedTestingChannel("a");
function page1Shown(e) {
if (counter == 0) {
ok(!e.persisted, "test page should have been persisted initially");
bc1.postMessage("load");
} else {
is(e.persisted, expectedPersisted, "test page should have been persisted in pageshow");
bc1.postMessage("close");
}
counter++;
}
function page2Shown() {
if (!expectedPersisted) {
SimpleTest.executeSoon(function() {
info("Posting a message.");
bc.postMessage(42);
});
}
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Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.
