testWidgets('Counter increments smoke test', (WidgetTester tester) async {
  // Build our app and trigger a frame
  await tester.pumpWidget(MyApp());
});

// Wait for animations to complete
await tester.pumpAndSettle();

final titleFinder = find.text('Hello World');
final buttonFinder = find.byIcon(Icons.add);

await tester.tap(buttonFinder);
await tester.pump();

testWidgets('Login button should be disabled with empty fields',
    (WidgetTester tester) async {
  await tester.pumpWidget(LoginScreen());

  final button = find.byType(ElevatedButton);
  expect(tester.widget<ElevatedButton>(button).enabled, false);
});

group('Counter widget', () {
  testWidgets('starts at 0', (tester) async {
    await tester.pumpWidget(Counter());
    expect(find.text('0'), findsOneWidget);
  });

  testWidgets('increments correctly', (tester) async {
    await tester.pumpWidget(Counter());
    await tester.tap(find.byIcon(Icons.add));
    await tester.pump();
    expect(find.text('1'), findsOneWidget);
  });
});

const counterKey = Key('counter_key');
ElevatedButton(
  key: counterKey,
  onPressed: () => increment(),
  child: Text('Increment'),
);

testWidgets('shows weather data', (tester) async {
  final mockWeatherService = MockWeatherService();
  when(mockWeatherService.getWeather())
      .thenReturn(Weather(temperature: 20));

  await tester.pumpWidget(
    WeatherWidget(weatherService: mockWeatherService)
  );
});