// 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/basic/aspect_ratio.0.dart' as example; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('AspectRatio applies 16 / 9 aspect ratio on its child', (WidgetTester tester) async { const double height = 100.0; await tester.pumpWidget( const example.AspectRatioApp(), ); final Size parentContainer = tester.getSize(find.byType(Container).first); expect(parentContainer.width, 800.0); expect(parentContainer.height, height); final Size childContainer = tester.getSize(find.byType(Container).last); expect(childContainer.width, height * 16 / 9); expect(childContainer.height, height); }); }