Converted Observatory nav-notify element

runtime/observatory/tests/observatory_ui/nav/notify/element_test.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:html' hide Notification, NotificationEvent;
+import 'package:unittest/unittest.dart';
+import 'package:observatory/mocks.dart';
+import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/nav/notify.dart';
+import 'package:observatory/src/elements/nav/notify_event.dart';
+import 'package:observatory/src/elements/nav/notify_exception.dart';
+
+main() {
+  NavNotifyElement.tag.ensureRegistration();
+
+  final evTag = NavNotifyEventElement.tag.name;
+  final exTag = NavNotifyExceptionElement.tag.name;
+
+  const vm = const VMRefMock();
+  const isolate = const IsolateRefMock(id: 'i-id', name: 'i-name');
+
+  group('instantiation', () {
+    test('default', () {
+      final NavNotifyElement e = new NavNotifyElement(
+          new NotificationRepositoryMock());
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.notifyOnPause, isTrue, reason: 'notifyOnPause is default');
+    });
+    test('notify on pause', () {
+      final NavNotifyElement e = new NavNotifyElement(
+          new NotificationRepositoryMock(), notifyOnPause: true);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.notifyOnPause, isTrue, reason: 'notifyOnPause is the same');
+    });
+    test('do not notify on pause', () {
+      final NavNotifyElement e = new NavNotifyElement(
+          new NotificationRepositoryMock(), notifyOnPause: false);
+      expect(e, isNotNull, reason: 'element correctly created');
+      expect(e.notifyOnPause, isFalse, reason: 'notifyOnPause is the same');
+    });
+  });
+  test('is correctly listening', () async {
+    final NotificationRepositoryMock repository =
+        new NotificationRepositoryMock();
+    final NavNotifyElement e = new NavNotifyElement(repository);
+    document.body.append(e);
+    await e.onRendered.first;
+    expect(repository.hasListeners, isTrue, reason: 'is listening');
+    e.remove();
+    await e.onRendered.first;
+    expect(repository.hasListeners, isFalse, reason: 'is no more listening');
+  });
+  group('elements', () {
+    test('created after attachment', () async {
+      final NotificationRepositoryMock repository =
+          new NotificationRepositoryMock(list: [
+            new ExceptionNotificationMock(exception: new Exception("ex")),
+            const EventNotificationMock(event: const VMUpdateEventMock(vm: vm)),
+            const EventNotificationMock(event: const VMUpdateEventMock(vm: vm))
+          ]);
+      final NavNotifyElement e = new NavNotifyElement(repository);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(repository.listInvoked, isTrue, reason: 'should invoke list()');
+      expect(e.children.length, isNonZero, reason: 'has elements');
+      expect(e.querySelectorAll(evTag).length, equals(2));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero, reason: 'is empty');
+    });
+    test('react to notifyOnPause change', () async {
+      final NotificationRepositoryMock repository =
+          new NotificationRepositoryMock(list: [
+            new ExceptionNotificationMock(exception: new Exception("ex")),
+            const EventNotificationMock(event: const VMUpdateEventMock()),
+            const EventNotificationMock(
+                event: const PauseStartEventMock(isolate: isolate))
+          ]);
+      final NavNotifyElement e = new NavNotifyElement(repository,
+          notifyOnPause: true);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.querySelectorAll(evTag).length, equals(2));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      e.notifyOnPause = false;
+      await e.onRendered.first;
+      expect(e.querySelectorAll(evTag).length, equals(1));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      e.notifyOnPause = true;
+      await e.onRendered.first;
+      expect(e.querySelectorAll(evTag).length, equals(2));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero, reason: 'is empty');
+    });
+    test('react to update event', () async {
+      final List<M.Notification> list = [
+        new ExceptionNotificationMock(exception: new Exception("ex")),
+        const EventNotificationMock(event: const VMUpdateEventMock()),
+      ];
+      final NotificationRepositoryMock repository =
+          new NotificationRepositoryMock(list: list);
+      final NavNotifyElement e = new NavNotifyElement(repository,
+          notifyOnPause: true);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.querySelectorAll(evTag).length, equals(1));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      list.add(const EventNotificationMock(
+          event: const PauseStartEventMock(isolate: isolate)));
+      repository.triggerChangeEvent();
+      await e.onRendered.first;
+      expect(e.querySelectorAll(evTag).length, equals(2));
+      expect(e.querySelectorAll(exTag).length, equals(1));
+      e.remove();
+      await e.onRendered.first;
+      expect(e.children.length, isZero, reason: 'is empty');
+    });
+  });
+}