| library NativeGCTest; |
| |
| import 'package:unittest/unittest.dart'; |
| import 'package:unittest/html_config.dart'; |
| import 'dart:html'; |
| |
| var testEvent = new EventStreamProvider<Event>('test'); |
| |
| main() { |
| useHtmlConfiguration(); |
| |
| test('EventListener', () { |
| final int N = 1000000; |
| final int M = 1000; |
| |
| var div; |
| for (int i = 0; i < M; ++i) { |
| // This memory should be freed when the listener below is |
| // collected. |
| List l = new List(N); |
| |
| // Record the iteration number. |
| l[N - 1] = i; |
| |
| div = new Element.tag('div'); |
| testEvent.forTarget(div).listen((_) { |
| // Only the final iteration's listener should be invoked. |
| // Note: the reference to l keeps the entire list alive. |
| expect(l[N - 1], M - 1); |
| }); |
| } |
| |
| final event = new Event('test'); |
| div.dispatchEvent(event); |
| }); |
| |
| test('WindowEventListener', () { |
| String message = 'WindowEventListenerTestPingMessage'; |
| |
| Element testDiv = new DivElement(); |
| testDiv.id = '#TestDiv'; |
| document.body.append(testDiv); |
| window.onMessage.listen((e) { |
| if (e.data == message) testDiv.click(); |
| }); |
| |
| for (int i = 0; i < 100; ++i) { |
| triggerMajorGC(); |
| } |
| |
| testDiv.onClick.listen(expectAsync((e) {})); |
| window.postMessage(message, '*'); |
| }); |
| } |
| |
| void triggerMajorGC() { |
| List list = new List(1000000); |
| Element div = new DivElement(); |
| div.onClick.listen((e) => print(list[0])); |
| } |