Converted Observatory ports-page element

runtime/observatory/tests/observatory_ui/ports/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/ports.dart';
+import '../mocks.dart';
+
+main() {
+  PortsElement.tag.ensureRegistration();
+
+  const vm = const VMMock();
+  const isolate = const IsolateRefMock();
+  final events = new EventRepositoryMock();
+  final notifs = new NotificationRepositoryMock();
+  final ports = new PortsRepositoryMock();
+  final instances = new InstanceRepositoryMock();
+  test('instantiation', () {
+    final e = new PortsElement(vm, isolate, events, notifs, ports, instances);
+    expect(e, isNotNull, reason: 'element correctly created');
+    expect(e.isolate, equals(isolate));
+    expect(e.ports, equals(ports));
+  });
+  test('elements created after attachment', () async {
+    const elements = const [
+      const PortMock(name: 'port-1'),
+      const PortMock(name: 'port-2'),
+      const PortMock(name: 'port-3')
+    ];
+    const isolatePorts = const PortsMock(elements: elements);
+    final ports = new PortsRepositoryMock(
+      getter: expectAsync((i) async {
+        expect(i, equals(isolate));
+        return isolatePorts;
+      }, count: 1)
+    );
+    final instances = new InstanceRepositoryMock();
+    final e = new PortsElement(vm, isolate, events, notifs, ports, instances);
+    document.body.append(e);
+    await e.onRendered.first;
+    expect(e.children.length, isNonZero, reason: 'has elements');
+    expect(e.querySelectorAll('.port-number').length, equals(elements.length));
+    e.remove();
+    await e.onRendered.first;
+    expect(e.children.length, isZero, reason: 'is empty');
+  });
+}