bin/simple_browser/test/simple_browser_test.dart

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fuchsia_logger/logger.dart';
import 'package:mockito/mockito.dart';

// ignore_for_file: implementation_imports
import 'package:simple_browser/app.dart';
import 'package:simple_browser/src/blocs/tabs_bloc.dart';
import 'package:simple_browser/src/blocs/webpage_bloc.dart';
import 'package:simple_browser/src/models/app_model.dart';

void main() {
  setupLogger(name: 'simple_browser_test');

  Stream<Locale> lstream;
  TabsBloc tabsBloc;

  testWidgets('localized text is displayed in the widgets',
      (WidgetTester tester) async {
    lstream = Stream.fromIterable(
            [Locale.fromSubtags(languageCode: 'sr', countryCode: 'RS')])
        .asBroadcastStream();

    tabsBloc = TabsBloc(
      tabFactory: () => MockWebPageBloc(),
      disposeTab: (tab) {
        tab.dispose();
      },
    );

    final model = MockAppModel();

    when(model.tabsBloc).thenAnswer((_) => tabsBloc);
    when(model.localeStream).thenAnswer((_) => lstream);

    final app = App(model);

    await tester.pumpWidget(app);

    // to resolve the FutureBuilder in the App widget.
    await tester.pumpWidget(app);
    await tester.pump();

    expect(
        find.byWidgetPredicate(
            (Widget widget) => widget is Title && widget.title == 'Прегледач',
            description: 'A widget with a localized title was displayed'),
        findsOneWidget);
  });
}

class MockAppModel extends Mock implements AppModel {}

class MockWebPageBloc extends Mock implements WebPageBloc {}