import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:student_app/core/services/device_fingerprint_service.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  setUp(() {
    SharedPreferences.setMockInitialValues({});
    DeviceFingerprintService.resetCache();
  });

  test('DeviceFingerprintService returns deterministic real fingerprint', () async {
    final fp1 = await DeviceFingerprintService.getFingerprint();
    expect(fp1, isNotEmpty);
    expect(fp1.startsWith('saqel_'), isTrue);

    final fp2 = await DeviceFingerprintService.getFingerprint();
    expect(fp2, equals(fp1));
  });

  test('DeviceFingerprintService metadata contains expected physical device keys', () async {
    final metadata = await DeviceFingerprintService.getDeviceMetadata();
    expect(metadata.containsKey('device_fingerprint'), isTrue);
    expect(metadata.containsKey('platform'), isTrue);
    expect(metadata.containsKey('hardware_id'), isTrue);
    expect(metadata.containsKey('model'), isTrue);
    expect(metadata.containsKey('persistent_install_id'), isTrue);
  });
}