// 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/animation/animation_controller/animated_digit.0.dart' as example; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('animated digit example', (WidgetTester tester) async { await tester.pumpWidget( const example.AnimatedDigitApp(), ); Finder findVisibleDigit(int digit) { return find.descendant( of: find.byType(SlideTransition).last, matching: find.text('$digit'), ); } expect(findVisibleDigit(0), findsOneWidget); await tester.tap(find.byType(FloatingActionButton)); await tester.pumpAndSettle(); expect(findVisibleDigit(1), findsOneWidget); await tester.tap(find.byType(FloatingActionButton)); await tester.pumpAndSettle(); expect(findVisibleDigit(2), findsOneWidget); await tester.tap(find.byType(FloatingActionButton)); await tester.pump(const Duration(milliseconds: 100)); // Animation duration is 300ms await tester.tap(find.byType(FloatingActionButton)); await tester.pumpAndSettle(); expect(findVisibleDigit(4), findsOneWidget); }); }