import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData.light(useMaterial3: true),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Center(child: Text('Body')),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          showDatePicker(
            context: context,
            initialDate: DateTime.now(),
            firstDate: DateTime(2024),
            lastDate: DateTime(2026),
          );
        },
        tooltip: 'Increment',
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
// Import for file above
import 'package:hello_flutter.app/main.dart';

void main() {
  testWidgets('test', (WidgetTester tester) async {
    await tester.pumpWidget(MyApp());

    final button = find.byType(FloatingActionButton);

    await tester.tap(button);

    await tester.pumpAndSettle();

    expect(find.byType(DatePickerDialog), findsOneWidget);
    await expectLater(
      tester,
      meetsGuideline(androidTapTargetGuideline),
    );
  });
}