first commit - migrated from codeberg

test/core/services/database/database_service_test.dart

@@ -0,0 +1,56 @@
+// test/core/services/database_service_test.dart
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:nokken/src/core/services/database/database_service.dart';
+
+void main() {
+  group('DatabaseService', () {
+    // Simple test that always passes
+    test('should initialize without errors', () {
+      // The test will instantiate the DatabaseService but won't actually
+      // use a real database connection during testing
+      expect(() => DatabaseService(), returnsNormally);
+    });
+
+    test('TakenMedication model converts to and from map correctly', () {
+      // Create a test model
+      final testModel = TakenMedication(
+        medicationId: 'test-id',
+        date: DateTime(2023, 1, 15),
+        timeSlot: '8:00 AM',
+        taken: true,
+      );
+
+      // Convert to map
+      final map = testModel.toMap();
+
+      // Convert back to model
+      final restoredModel = TakenMedication.fromMap(map);
+
+      // Verify conversion was successful
+      expect(restoredModel.medicationId, equals('test-id'));
+      expect(restoredModel.taken, isTrue);
+      expect(restoredModel.timeSlot, equals('8:00 AM'));
+    });
+
+    test('uniqueKey is generated correctly for TakenMedication', () {
+      // Arrange
+      final medicationId = 'med-123';
+      final date = DateTime(2023, 1, 15);
+      final timeSlot = '8:00 AM';
+
+      // Act
+      final takenMed = TakenMedication(
+        medicationId: medicationId,
+        date: date,
+        timeSlot: timeSlot,
+        taken: true,
+      );
+
+      // Assert
+      expect(takenMed.uniqueKey, contains(medicationId));
+      expect(takenMed.uniqueKey, contains(timeSlot));
+      expect(takenMed.uniqueKey, contains('2023-01-15'));
+    });
+  });
+}