gecko-dev/dom/bindings/test/test_prefOnConstructor.html

58 строки
1.6 KiB
HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1604340
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1604340</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/* global WrapperCachedNonISupportsTestInterface */
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({set: [["dom.expose_test_interfaces", true]]}, go);
async function go() {
await SpecialPowers.pushPrefEnv({set: [["dom.webidl.test1", false]]});
let result = null;
let constructorThrew = false;
try {
result = new WrapperCachedNonISupportsTestInterface();
} catch {
constructorThrew = true;
}
is(result, null, "The result value should remain null if the constructor threw an exception as intended.");
ok(constructorThrew, "The constructor should throw an exception if its pref is not set to true.");
await SpecialPowers.pushPrefEnv({set: [["dom.webidl.test1", true]]});
result = null;
constructorThrew = false;
try {
result = new WrapperCachedNonISupportsTestInterface();
} catch {
constructorThrew = true;
}
isnot(result, null, "Constructor should have executed successfully.");
ok(!constructorThrew, "The constructor should not throw an exception if its pref is set.");
SimpleTest.finish();
}
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1604340">Mozilla Bug 1604340</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>