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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=1390159
-->
<window title="Mozilla Bug 1390159"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<!-- test code goes here -->
<script type="application/javascript"><![CDATA[
function test() {
var xulRuntime = Services.appinfo;
// Make sure it has an inSafeMode property. This is just an arbitrary
// readonly property.
var oldValue = xulRuntime.inSafeMode;
is(typeof oldValue, "boolean", "Expected an inSafeMode property");
// Changing a readonly property doesn't throw, but shouldn't change
// the value.
xulRuntime.inSafeMode = !oldValue;
is(xulRuntime.inSafeMode, oldValue, "Should not have modified prop");
// Adding a new property should throw.
let ex = null;
try {
xulRuntime.foobar = 1;
} catch (e) {
ex = e;
}
is(ex.toString().includes("Cannot modify"), true, "Expected an error");
is(xulRuntime.foobar, undefined, "Property not defined");
}
test();
]]></script>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
</body>
</window>
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