// 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/rendering.dart'; import 'package:flutter_api_samples/painting/axis_direction/axis_direction.0.dart' as example; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('Example app has radio buttons to toggle AxisDirection', (WidgetTester tester) async { await tester.pumpWidget( const example.ExampleApp(), ); expect(find.byType(Radio<AxisDirection>), findsNWidgets(4)); final RenderViewport viewport = tester.renderObject(find.byType(Viewport)); expect(find.text('AxisDirection.down'), findsOneWidget); expect(find.text('Axis.vertical'), findsOneWidget); expect(find.text('GrowthDirection.forward'), findsOneWidget); expect(find.byIcon(Icons.arrow_downward_rounded), findsNWidgets(2)); expect(viewport.axisDirection, AxisDirection.down); await tester.tap( find.byWidgetPredicate((Widget widget) { return widget is Radio<AxisDirection> && widget.value == AxisDirection.up; }) ); await tester.pumpAndSettle(); expect(find.text('AxisDirection.up'), findsOneWidget); expect(find.text('Axis.vertical'), findsOneWidget); expect(find.text('GrowthDirection.forward'), findsOneWidget); expect(find.byIcon(Icons.arrow_upward_rounded), findsNWidgets(2)); expect(viewport.axisDirection, AxisDirection.up); }); }