| // 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/list_tile/list_tile.2.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('ListTile leading and trailing widgets are aligned appropriately', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.ListTileApp(), |
| ); |
| |
| expect(find.byType(ListTile), findsNWidgets(3)); |
| |
| Offset listTileTopLeft = tester.getTopLeft(find.byType(ListTile).at(0)); |
| Offset leadingTopLeft = tester.getTopLeft(find.byType(CircleAvatar).at(0)); |
| Offset trailingTopLeft = tester.getTopLeft(find.byType(Icon).at(0)); |
| |
| // The leading and trailing widgets are centered vertically with the text. |
| expect(leadingTopLeft - listTileTopLeft, const Offset(16.0, 16.0)); |
| expect(trailingTopLeft - listTileTopLeft, const Offset(752.0, 24.0)); |
| |
| listTileTopLeft = tester.getTopLeft(find.byType(ListTile).at(1)); |
| leadingTopLeft = tester.getTopLeft(find.byType(CircleAvatar).at(1)); |
| trailingTopLeft = tester.getTopLeft(find.byType(Icon).at(1)); |
| |
| // The leading and trailing widgets are centered vertically with the text. |
| expect(leadingTopLeft - listTileTopLeft, const Offset(16.0, 30.0)); |
| expect(trailingTopLeft - listTileTopLeft, const Offset(752.0, 38.0)); |
| |
| listTileTopLeft = tester.getTopLeft(find.byType(ListTile).at(2)); |
| leadingTopLeft = tester.getTopLeft(find.byType(CircleAvatar).at(2)); |
| trailingTopLeft = tester.getTopLeft(find.byType(Icon).at(2)); |
| |
| // The leading and trailing widgets are aligned to the top vertically with the text. |
| expect(leadingTopLeft - listTileTopLeft, const Offset(16.0, 8.0)); |
| expect(trailingTopLeft - listTileTopLeft, const Offset(752.0, 8.0)); |
| }); |
| } |