| // 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/material/expansion_tile/expansion_tile.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('When expansion tiles are expanded tile numbers are revealed', (WidgetTester tester) async { |
| const int totalTiles = 3; |
| |
| await tester.pumpWidget( |
| const example.ExpansionTileApp(), |
| ); |
| |
| expect(find.byType(ExpansionTile), findsNWidgets(totalTiles)); |
| |
| const String tileOne = 'This is tile number 1'; |
| expect(find.text(tileOne), findsNothing); |
| |
| await tester.tap(find.text('ExpansionTile 1')); |
| await tester.pumpAndSettle(); |
| expect(find.text(tileOne), findsOneWidget); |
| |
| const String tileTwo = 'This is tile number 2'; |
| expect(find.text(tileTwo), findsNothing); |
| |
| await tester.tap(find.text('ExpansionTile 2')); |
| await tester.pumpAndSettle(); |
| expect(find.text(tileTwo), findsOneWidget); |
| |
| const String tileThree = 'This is tile number 3'; |
| expect(find.text(tileThree), findsNothing); |
| |
| await tester.tap(find.text('ExpansionTile 3')); |
| await tester.pumpAndSettle(); |
| expect(find.text(tileThree), findsOneWidget); |
| }); |
| } |