| // 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/animated_list/animated_list_separated.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets( |
| 'Items can be selected, added, and removed from AnimatedList.separated', |
| (WidgetTester tester) async { |
| await tester.pumpWidget(const example.AnimatedListSeparatedSample()); |
| |
| expect(find.text('Item 0'), findsOneWidget); |
| expect(find.text('Separator 0'), findsOneWidget); |
| expect(find.text('Item 1'), findsOneWidget); |
| expect(find.text('Separator 1'), findsOneWidget); |
| expect(find.text('Item 2'), findsOneWidget); |
| |
| // Add an item at the end of the list |
| await tester.tap(find.byIcon(Icons.add_circle)); |
| await tester.pumpAndSettle(); |
| expect(find.text('Separator 2'), findsOneWidget); |
| expect(find.text('Item 3'), findsOneWidget); |
| |
| // Select Item 1. |
| await tester.tap(find.text('Item 1')); |
| await tester.pumpAndSettle(); |
| |
| // Add item at the top of the list |
| await tester.tap(find.byIcon(Icons.add_circle)); |
| await tester.pumpAndSettle(); |
| expect(find.text('Item 4'), findsOneWidget); |
| // Contrary to the behavior for insertion at other places, |
| // the Separator for the last item of the list will be added |
| // before that item instead of after it. |
| expect(find.text('Separator 4'), findsOneWidget); |
| |
| // Remove selected item. |
| await tester.tap(find.byIcon(Icons.remove_circle)); |
| |
| // Item animation is not completed. |
| await tester.pump(); |
| expect(find.text('Item 1'), findsOneWidget); |
| expect(find.text('Separator 1'), findsNothing); |
| expect(find.text('Removing separator'), findsOneWidget); |
| |
| // When the animation completes, Item 1 disappears. |
| await tester.pumpAndSettle(); |
| expect(find.text('Item 1'), findsNothing); |
| expect(find.text('Separator 1'), findsNothing); |
| expect(find.text('Removing separator'), findsNothing); |
| }, |
| ); |
| } |