src/third_party/web_platform_tests/websockets/unload-a-document/002-1.html - cobalt - Git at Google

 <!doctype html>
 <title>WebSockets: navigating top-level browsing context with closed websocket</title>
 <script src=../constants.js?pipe=sub></script>
 <script>
 var controller = opener || parent;
 var t = controller.t;
 var assert_equals = controller.asset_equals;
 var assert_unreached = controller.assert_unreached ;
 var uuid = controller.token;
 t.add_cleanup(function() {delete sessionStorage[uuid];});
 t.step(function() {
   // this test can fail if the document is unloaded on navigation e.g. due to OOM
   if (sessionStorage[uuid]) {
     assert_unreached('document was discarded');
   } else {
     sessionStorage[uuid] = 'true';
     var ws = new WebSocket(SCHEME_DOMAIN_PORT+'/echo');
     ws.onopen = t.step_func(function(e) {

       setTimeout(t.step_func(function() {
         assert_equals(ws.readyState, ws.CLOSED, 'ws.readyState');
         t.done();
       }), 4000);
       ws.close();
       ws.onclose = t.step_func(function() {
         controller.navigate();
       });
     })
     ws.onerror = ws.onmessage = ws.onclose = t.step_func(function(e) {assert_unreached("Got unexpected event " + e.type)});
   }
 });
 </script>
	<!doctype html>
	<title>WebSockets: navigating top-level browsing context with closed websocket</title>
	<script src=../constants.js?pipe=sub></script>
	<script>
	var controller = opener \|\| parent;
	var t = controller.t;
	var assert_equals = controller.asset_equals;
	var assert_unreached = controller.assert_unreached ;
	var uuid = controller.token;
	t.add_cleanup(function() {delete sessionStorage[uuid];});
	t.step(function() {
	// this test can fail if the document is unloaded on navigation e.g. due to OOM
	if (sessionStorage[uuid]) {
	assert_unreached('document was discarded');
	} else {
	sessionStorage[uuid] = 'true';
	var ws = new WebSocket(SCHEME_DOMAIN_PORT+'/echo');
	ws.onopen = t.step_func(function(e) {

	setTimeout(t.step_func(function() {
	assert_equals(ws.readyState, ws.CLOSED, 'ws.readyState');
	t.done();
	}), 4000);
	ws.close();
	ws.onclose = t.step_func(function() {
	controller.navigate();
	});
	})
	ws.onerror = ws.onmessage = ws.onclose = t.step_func(function(e) {assert_unreached("Got unexpected event " + e.type)});
	}
	});
	</script>