feat(dependencies): add rxdart package and improve string extension methods for better handling of empty strings and gender parsing

test/features/registration/models/location_model_test.dart

@@ -0,0 +1,30 @@
+import 'package:eatvio_app/features/registration/models/location_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('LocationModel', () {
+    test('создает LocationModel с правильными значениями', () {
+      const model = LocationModel(
+        locations: ['Moscow', 'Saint Petersburg'],
+        responseBody: '{}',
+      );
+
+      expect(model.locations.length, 2);
+      expect(model.locations.first, 'Moscow');
+      expect(model.responseBody, '{}');
+    });
+
+    test('fromJson создает LocationModel из JSON', () {
+      final json = {
+        'locations': ['Moscow', 'Saint Petersburg'],
+        'response_body': '{}',
+      };
+
+      final model = LocationModel.fromJson(json);
+
+      expect(model.locations.length, 2);
+      expect(model.responseBody, '{}');
+    });
+  });
+}
+

test/features/registration/models/user_registration_model_test.dart

@@ -0,0 +1,43 @@
+import 'package:eatvio_app/features/registration/models/user_registration_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('UserRegistrationSheet', () {
+    test('создает UserRegistrationSheet с правильными значениями', () {
+      const model = UserRegistrationSheet(
+        firstName: 'John',
+        lastName: 'Doe',
+        email: 'john@example.com',
+        password: 'password123',
+        passwordConfirmation: 'password123',
+        birthdate: '1990-01-01',
+        gender: 'male',
+        location: 'Moscow',
+        responseBody: '{}',
+        lang: 'ru',
+        weight: 70,
+        height: 175,
+        phone: '+79001234567',
+        chestCircumference: 100,
+        waistCircumference: 80,
+        hipCircumference: 90,
+        bloodPressureUp: 120,
+        bloodPressureDown: 80,
+        hasHypo: 0,
+        hasHyper: 0,
+        aboutAllergy: 'No allergies',
+        aboutTakingPils: 'No pills',
+        aboutSportHobbies: 'Running',
+        favoriteFoods: 'Fruits',
+        unfavoriteFoods: 'Fast food',
+        additionalInfo: 'Additional info',
+      );
+
+      expect(model.firstName, 'John');
+      expect(model.email, 'john@example.com');
+      expect(model.weight, 70);
+      expect(model.termsAccepted, 'accepted');
+    });
+  });
+}
+