car-interface-android/test/night_mode_overlay_test.dart

import 'package:cardash_launcher/features/home/widgets/night_mode_overlay.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('night mode clock dismisses on a tap', (tester) async {
    var dismissed = false;
    await tester.pumpWidget(
      MaterialApp(home: NightModeOverlay(onDismiss: () => dismissed = true)),
    );
    expect(find.byType(Text), findsOneWidget);
    await tester.tap(find.byType(NightModeOverlay));
    expect(dismissed, isTrue);
  });
}