runtime/observatory/tests/observatory_ui/flag_list/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 'dart:async';
import 'package:unittest/unittest.dart';
import 'package:observatory/mocks.dart';
import 'package:observatory/src/elements/flag_list.dart';
import 'package:observatory/src/elements/nav/notify.dart';

main() {
  FlagListElement.tag.ensureRegistration();

  final nTag = NavNotifyElement.tag.name;
  const vm = const VMMock(name: 'vm');
  final stream = new StreamController().stream;

  group('instantiation', () {
    test('default', () {
      final FlagListElement e = new FlagListElement(vm, stream,
          new FlagsRepositoryMock(),
          new NotificationRepositoryMock());
      expect(e, isNotNull, reason: 'element correctly created');
    });
  });
  group('elements', () {
    test('created after attachment', () async {
      const modified = const [
        const FlagMock(name: 'f1', comment: 'c1', modified: true),
      ];
      const unmodifed = const [
        const FlagMock(name: 'f2', comment: 'c2', modified: false),
        const FlagMock(name: 'f3', comment: 'c3', modified: false),
      ];
      final flags = new List.unmodifiable([]..addAll(modified)
                                            ..addAll(unmodifed));
      final FlagListElement e = new FlagListElement(vm, stream,
          new FlagsRepositoryMock(list: expectAsync((input) async {
            expect(input, equals(vm));
            return flags;
          }, count: 1)), new NotificationRepositoryMock());
      document.body.append(e);
      await e.onRendered.first;
      expect(e.children.length, isNonZero, reason: 'has elements');
      expect(e.querySelectorAll(nTag).length, equals(1));
      expect(e.querySelectorAll('.flag').length, equals(flags.length));
      expect(e.querySelectorAll('.flag.modified').length,
          equals(modified.length));
      expect(e.querySelectorAll('.flag.unmodified').length,
          equals(unmodifed.length));
      expect(e.querySelectorAll('.flag').length, equals(flags.length));
      expect(e.querySelectorAll('.comment').length, equals(flags.length));
      expect(e.querySelectorAll('.name').length, equals(flags.length));
      expect(e.querySelectorAll('.value').length, equals(flags.length));
      e.remove();
      await e.onRendered.first;
      expect(e.children.length, isZero, reason: 'is empty');
    });
  });
}