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<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=339494
-->
<window title="Mozilla Bug 339494"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<body xmlns="http://www.w3.org/1999/xhtml">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=339494">Mozilla Bug 339494</a>
<p id="display"></p>
<div id="content" style="display: none">
<xul:hbox id="d"/>
<xul:hbox id="s"/>
</div>
<pre id="test">
</pre>
</body>
<script class="testbody" type="application/javascript">
/** Test for Bug 339494 **/
SimpleTest.waitForExplicitFinish();
(async function runTests() {
function promiseFlushingMutationObserver() {
return new Promise(SimpleTest.executeSoon);
}
await (async function() {
const d = document.getElementById("d");
d.setAttribute("hhh", "testvalue");
await promiseFlushingMutationObserver();
const observer = new MutationObserver((aMutationList, aObserver) => {
ok(!d.hasAttribute("hhh"), "Value check 1. There should be no value");
isnot(d.getAttribute("hhh"), "testvalue", "Value check 2");
aObserver.disconnect();
d.removeAttribute("hhh");
ok(true, "Reachability. We shouldn't have crashed");
});
observer.observe(d, { attributes: true });
d.removeAttribute("hhh");
await promiseFlushingMutationObserver();
})();
await (async function() {
const s = document.getElementById("s");
s.setAttribute("ggg", "testvalue");
await promiseFlushingMutationObserver();
const observer = new MutationObserver((aMutationList, aObserver) => {
ok(s.hasAttribute("ggg"), "Value check 3. There should be a value");
isnot(s.getAttribute("ggg"), "testvalue", "Value check 4");
is(s.getAttribute("ggg"), "othervalue", "Value check 5");
});
observer.observe(s, { attributes: true });
s.setAttribute("ggg", "othervalue");
await promiseFlushingMutationObserver();
observer.disconnect();
})();
SimpleTest.finish();
})();
</script>
</window>
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