LayoutTests/fast/dom/navigator-property-gc-after-frame-detach.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <script src="../../resources/js-test.js"></script>
 <iframe id="testFrame" src="about:blank"></iframe>
 <script>
 description("Tests that Navigator properties do not get GC'd before their Navigator object.");
 jsTestIsAsync = true;

 var navigatorProperties = [ "geolocation", "mimeTypes", "plugins" ];
 if (navigator.serviceWorker)
     navigatorProperties.push("serviceWorker");

 onload = function() {
     frameNavigator = document.getElementById("testFrame").contentWindow.navigator;
     for (let navigatorProperty of navigatorProperties)
         eval("frameNavigator." + navigatorProperty + ".foo = 1;");
     document.getElementById("testFrame").remove();
     for (let navigatorProperty of navigatorProperties)
         shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
     debug("");
     gc();
     for (let navigatorProperty of navigatorProperties)
         shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
     debug("");
     setTimeout(() => {
         gc();
         for (let navigatorProperty of navigatorProperties)
             shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
         finishJSTest();
     }, 10);
 }
 </script>
 </body>
	<!DOCTYPE html>
	<html>
	<body>
	<script src="../../resources/js-test.js"></script>
	<iframe id="testFrame" src="about:blank"></iframe>
	<script>
	description("Tests that Navigator properties do not get GC'd before their Navigator object.");
	jsTestIsAsync = true;

	var navigatorProperties = [ "geolocation", "mimeTypes", "plugins" ];
	if (navigator.serviceWorker)
	navigatorProperties.push("serviceWorker");

	onload = function() {
	frameNavigator = document.getElementById("testFrame").contentWindow.navigator;
	for (let navigatorProperty of navigatorProperties)
	eval("frameNavigator." + navigatorProperty + ".foo = 1;");
	document.getElementById("testFrame").remove();
	for (let navigatorProperty of navigatorProperties)
	shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
	debug("");
	gc();
	for (let navigatorProperty of navigatorProperties)
	shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
	debug("");
	setTimeout(() => {
	gc();
	for (let navigatorProperty of navigatorProperties)
	shouldBe("frameNavigator." + navigatorProperty + ".foo", "1");
	finishJSTest();
	}, 10);
	}
	</script>
	</body>