gecko-dev/content/base/test/test_bug421602.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=421602
-->
<head>
<title>Test for Bug 421602</title>
<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="text/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=421602">Mozilla Bug 421602</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 421602 **/
SimpleTest.waitForExplicitFinish();
var img1loaded = false;
var img2loaded = false;
var img1errored = false;
var img2errored = false;
function gc() {
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
.getInterface(Components.interfaces.nsIDOMWindowUtils)
.garbageCollect();
}
// Our test image
function loadTestImage() {
var img1 = new Image();
img1.onload = function() { img1loaded = true; }
img1.onerror = function() {
is(img2errored, false, "Image 3 should not error before image 2");
img1errored = true;
}
img1.src = window.location.href + "?image1=true";
}
loadTestImage();
// Probably overkill to gc() more than once, but let's be safe
gc(); gc(); gc();
// And now our "wrap the test up" image.
var img2 = new Image();
img2.onload = function() { img2loaded = true; }
img2.onerror = function() { img2errored = true; finishTest(); }
img2.src = window.location.href + "?image2=true";
function finishTest() {
is(img1errored, true, "Image 1 should error");
is(img2errored, true, "Image 2 should error");
is(img1loaded, false, "Image 1 should not load");
is(img2loaded, false, "Image 2 should not load");
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>