FILE: lib/main.dart
import 'package:flutter/material.dart';

void main() => runApp(const CounterApp());

class CounterApp extends StatefulWidget {
  const CounterApp({super.key});

  @override
  State<CounterApp> createState() => _CounterAppState();
}

class _CounterAppState extends State<CounterApp> {
  int count = 0;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(child: Text('$count')),
        floatingActionButton: TextButton(
          onPressed: () => setState(() => count++),
          child: const Text('+'),
        ),
      ),
    );
  }
}
END_FILE
FILE: test/widget_test.dart
import 'package:flutter_test/flutter_test.dart';
import 'package:counter_needs_repair/main.dart';

void main() {
  testWidgets('increments', (tester) async {
    await tester.pumpWidget(const CounterApp());
    await tester.tap(find.text('+'));
    await tester.pump();
    expect(find.text('1'), findsOneWidget);
  });
}
END_FILE
