gecko-dev/js/xpconnect/tests/chrome/test_discardSystemSource.xul

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<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=990353
-->
<window title="Mozilla Bug 990353"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=990353"
target="_blank">Mozilla Bug 990353</a>
</body>
<!-- test code goes here -->
<script type="application/javascript">
<![CDATA[
/** Test for Bug 990353 **/
SimpleTest.waitForExplicitFinish();
const Cu = Components.utils;
function canary() {
var someBitOfSource = 42;
}
var gLoadCount = 0;
function frameLoaded() {
switch (++gLoadCount) {
case 1:
ok(/sourceless/.test(window[0].canary.toSource()), "System function should be sourceless: " + window[0].canary.toSource());
ok(/sourceless/.test(window[0].onload.toSource()), "System event handler should be sourceless: " + window[0].onload.toSource());
var sb = new Cu.Sandbox('http://www.example.com', { discardSource: true });
Cu.evalInSandbox('function canary() { var someBitOfSource = 42; }', sb);
ok(/sourceless/.test(sb.canary.toSource()), "Function from sandbox with explicit discarding should be sourceless");
try {
window[0].throwSomething();
ok(false, "should have thrown");
} catch (e) {
ok(/some error/.test(e), "Threw exception as expected: " + e);
ok(/throwSomething/.test(e.stack), "Exception stack trace works: " + e.stack);
}
window[0].location = "http://example.org/tests/js/xpconnect/tests/chrome/file_discardSystemSource.html";
break;
case 2:
ok(/someBitOfSource/.test(Cu.waiveXrays(window[0]).canary.toSource()), "Content function should have source");
ok(/someBitOfSource/.test(Cu.waiveXrays(window[0]).onload.toSource()), "Content event handler should have source");
testWorker();
break;
}
}
function testWorker() {
var worker = new window[0].wrappedJSObject.Worker('worker_discardSystemSource.js');
worker.onmessage = function(evt) {
ok(/someBitOfSource/.test(evt.data), "Non-chrome worker should have source: " + evt.data);
var chromeWorker = new Worker('worker_discardSystemSource.js');
chromeWorker.onmessage = function(evt) {
ok(/sourceless/.test(evt.data), "Chrome worker should not have source: " + evt.data);
SimpleTest.finish();
}
}
}
function go() {
// We should have our own source, because the pref wasn't enabled when we
// were loaded.
ok(/someBitOfSource/.test(canary.toSource()), "Should have own source");
window[0].frameElement.onload = frameLoaded;
window[0].location = "file_discardSystemSource.html";
}
addLoadEvent(function() {
SpecialPowers.pushPrefEnv({set: [['javascript.options.discardSystemSource', true]]}, go);
});
]]>
</script>
<iframe></iframe>
</window>