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

test/features/feed/models/view_model_test.dart

@@ -0,0 +1,42 @@
+import 'package:eatvio_app/features/feed/models/view_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('ViewModel', () {
+    test('создает ViewModel с правильными значениями', () {
+      final model = ViewModel(
+        type: 'blog_posts',
+        ids: [1, 2, 3],
+        slugs: null,
+      );
+
+      expect(model.type, 'blog_posts');
+      expect(model.ids, [1, 2, 3]);
+      expect(model.slugs, isNull);
+    });
+
+    test('создает ViewModel с slugs', () {
+      final model = ViewModel(
+        type: 'plans',
+        ids: null,
+        slugs: ['plan-1', 'plan-2'],
+      );
+
+      expect(model.type, 'plans');
+      expect(model.slugs, ['plan-1', 'plan-2']);
+    });
+
+    test('fromJson создает ViewModel из JSON', () {
+      final json = {
+        'type': 'diets',
+        'ids': [1, 2],
+      };
+
+      final model = ViewModel.fromJson(json);
+
+      expect(model.type, 'diets');
+      expect(model.ids, [1, 2]);
+    });
+  });
+}
+