// 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/choice_chip/choice_chip.0.dart'asexample;import'package:flutter_test/flutter_test.dart';voidmain(){testWidgets('Can choose an item using ChoiceChip',(WidgetTestertester)async{awaittester.pumpWidget(constexample.ChipApp(),);ChoiceChipchoosenChip=tester.widget(find.byType(ChoiceChip).at(1));expect(choosenChip.selected,true);awaittester.tap(find.byType(ChoiceChip).at(0));awaittester.pumpAndSettle();choosenChip=tester.widget(find.byType(ChoiceChip).at(0));expect(choosenChip.selected,true);});}