examples/api/test/widgets/scroll_view/list_view.1_test.dart

// Copyright 2014 The Flutter 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_api_samples/widgets/scroll_view/list_view.1.dart'
    as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets(
    'tapping Reverse button should reverse ListView',
    (WidgetTester tester) async {
      await tester.pumpWidget(const example.ListViewExampleApp());
      final Finder listView = find.byType(ListView);
      final Finder reverseFinder = find.text('Reverse items');
      expect(listView, findsOneWidget);
      expect(reverseFinder, findsOneWidget);
      final Finder keepAliveItemFinder = find.byType(example.KeepAliveItem);
      example.KeepAliveItem firstWidget = tester.firstWidget(keepAliveItemFinder);
      expect(firstWidget.data, '1');
      await tester.tap(reverseFinder);
      await tester.pump();
      firstWidget = tester.firstWidget(keepAliveItemFinder);
      expect(firstWidget.data, '5');
    },
  );
}