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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=669671
-->
<head>
<title>Test for Bug 669671</title>
<script 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=669671">Mozilla Bug 669671</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/**
* Test for Bug 669671.
*
* This is a bit complicated. We have a script, file_bug669671.sjs, which counts
* how many times it's loaded and returns that count in the body of an HTML
* document. For brevity, call this page X.
*
* X is sent with Cache-Control: max-age=0 and can't be bfcached (it has an
* onunload handler). Our test does the following in a popup:
*
* 1) Load X?pushed, to prime the cache.
* 2) Navigate to X.
* 3) Call pushState and navigate from X to X?pushed.
* 4) Navigate to X?navigated.
* 5) Go back (to X?pushed).
*
* We do all this work so we can check that in step 5, we fetch X?pushed from
* the network -- we shouldn't use our cached copy, because of the
* cache-control header X sends.
*
* Then we go back and repeat the whole process but call history.replaceState
* instead of pushState. And for good measure, we test once more, this time
* modifying only the hash of the URI using replaceState. In this case, we
* should* load from the cache.
*
*/
SimpleTest.requestLongerTimeout(2);
SimpleTest.waitForExplicitFinish();
function onChildLoad() {
SimpleTest.executeSoon(function() { gGen.next(); });
}
var _loadCount = 0;
function checkPopupLoadCount() {
is(popup.document.body.innerHTML, _loadCount + "", "Load count");
// We normally want to increment _loadCount here. But if the test fails
// because we didn't do a load we should have, let's not cause a cascade of
// failures by incrementing _loadCount.
var origCount = _loadCount;
if (popup.document.body.innerHTML >= _loadCount + "")
_loadCount++;
return origCount;
}
function* test() {
// Step 0 - Make sure the count is reset to 0 in case of reload
popup.location = "file_bug669671.sjs?countreset";
yield;
is(popup.document.body.innerHTML, "0",
"Load count should be reset to 0");
// Step 1 - The popup's body counts how many times we've requested the
// resource. This is the first time we've requested it, so it should be '0'.
checkPopupLoadCount();
// Step 2 - We'll get another onChildLoad when this finishes.
popup.location = "file_bug669671.sjs";
yield undefined;
// Step 3 - Call pushState and change the URI back to ?pushed.
checkPopupLoadCount();
popup.history.pushState("", "", "?pushed");
// Step 4 - Navigate away. This should trigger another onChildLoad.
popup.location = "file_bug669671.sjs?navigated-1";
yield undefined;
// Step 5 - Go back. This should result in another onload (because the file is
// not in bfcache) and should be the fourth time we've requested the sjs file.
checkPopupLoadCount();
popup.history.back();
yield undefined;
// This is the check which was failing before we fixed the bug.
checkPopupLoadCount();
popup.close();
// Do the whole thing again, but with replaceState.
popup = window.open("file_bug669671.sjs?replaced");
yield undefined;
checkPopupLoadCount();
popup.location = "file_bug669671.sjs";
yield undefined;
checkPopupLoadCount();
popup.history.replaceState("", "", "?replaced");
popup.location = "file_bug669671.sjs?navigated-2";
yield undefined;
checkPopupLoadCount();
popup.history.back();
yield undefined;
checkPopupLoadCount();
popup.close();
// Once more, with feeling. Notice that we don't have to prime the cache
// with an extra load here, because X and X#hash share the same cache entry.
popup = window.open("file_bug669671.sjs?hash-test");
yield undefined;
var initialCount = checkPopupLoadCount();
popup.history.replaceState("", "", "#hash");
popup.location = "file_bug669671.sjs?navigated-3";
yield undefined;
checkPopupLoadCount();
popup.history.back();
yield undefined;
is(popup.document.body.innerHTML, initialCount + "",
"Load count (should be cached)");
popup.close();
SimpleTest.finish();
}
var gGen = test();
var popup;
// Disable RCWN to make cache behavior deterministic.
SpecialPowers.pushPrefEnv({set: [["network.http.rcwn.enabled", false]]}, () => {
// This will call into onChildLoad once it loads.
popup = window.open("file_bug669671.sjs?pushed");
});
</script>
</pre>
</body>
</html>
|
