Converted Observatory isolate-reconnect element

runtime/observatory/tests/observatory_ui/isolate_reconnect/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';
+import 'package:unittest/unittest.dart';
+import 'package:observatory/src/elements/isolate_reconnect.dart';
+import 'package:observatory/src/elements/nav/notify.dart';
+import '../mocks.dart';
+
+main(){
+  IsolateReconnectElement.tag.ensureRegistration();
+
+  final nTag = NavNotifyElement.tag.name;
+
+  EventRepositoryMock events;
+  NotificationRepositoryMock notifications;
+  Uri uri;
+  const vm = const VMMock(isolates: const [
+    const IsolateMock(id: 'i-1-id'), const IsolateMock(id: 'i-2-id')
+  ]);
+  const missing = 'missing-id';
+  setUp(() {
+    events = new EventRepositoryMock();
+    notifications = new NotificationRepositoryMock();
+    uri = new  Uri(path: 'path');
+  });
+  test('instantiation', () {
+    final e = new IsolateReconnectElement(vm, events, notifications, missing,
+                                          uri);
+    expect(e, isNotNull, reason: 'element correctly created');
+    expect(e.vm, equals(vm));
+    expect(e.missing, equals(missing));
+    expect(e.uri, equals(uri));
+  });
+  test('elements created after attachment', () async {
+    final e = new IsolateReconnectElement(vm, events, notifications, missing,
+                                          uri);
+    document.body.append(e);
+    await e.onRendered.first;
+    expect(e.children.length, isNonZero, reason: 'has elements');
+    expect(e.querySelector(nTag), isNotNull, reason: 'has notifications');
+    expect(e.querySelectorAll('.isolate-link').length,
+        equals(vm.isolates.length), reason: 'has links');
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero, reason: 'is empty');
+  });
+  group('updates', () {
+    test('are correctly listen', () async {
+      final e = new IsolateReconnectElement(vm, events, notifications, missing,
+                                            uri);
+      expect(events.onVMUpdateHasListener, isFalse);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(events.onVMUpdateHasListener, isTrue);
+      e.remove();
+      await e.onRendered.first;
+      expect(events.onVMUpdateHasListener, isFalse);
+    });
+    test('have effects', () async {
+      final e = new IsolateReconnectElement(vm, events, notifications, missing,
+                                            uri);
+      const vm2 = const VMMock(isolates: const [
+          const IsolateMock(id: 'i-1-id'), const IsolateMock(id: 'i-2-id'),
+          const IsolateMock(id: 'i-3-id')
+      ]);
+      document.body.append(e);
+      await e.onRendered.first;
+      expect(e.querySelectorAll('.isolate-link').length,
+          equals(vm.isolates.length));
+      events.add(new VMUpdateEventMock(vm: vm2));
+      await e.onRendered.first;
+      expect(e.querySelectorAll('.isolate-link').length,
+          equals(vm2.isolates.length));
+      e.remove();
+      await e.onRendered.first;
+    });
+  });
+}