gc-used-listeners.html | Explore in Territory

<!DOCTYPE html>
<head>
<script src="../resources/js-test.js"></script>
<script src="resources/netinfo_common.js"></script>
</head>
<body>
<script>

description('Tests that used listeners are not collected.');

shouldBe('typeof internals.observeGC', '"function"',
'this test requires window.internals');

var callback = function(e) {
	testFailed("Should not get here.");
};

// Add a listener and make sure that the callback
// doesn't get collected.
var callbackObserver = internals.observeGC(callback);
connection.addEventListener('typechange', callback);
callback = null;
gc();
shouldBeFalse('callbackObserver.wasCollected');
finishJSTest();

</script>
</body>
</html>

chromium/third_party/blink/web_tests/netinfo/gc-used-listeners.html