refactor(tests): update model instantiation to use const for improved performance

test/features/my_finance/models/card_model_test.dart

@@ -0,0 +1,85 @@
+import 'package:eatvio_app/features/my_finance/models/card_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('CardModel', () {
+    test('fromJson - успешная десериализация', () {
+      final json = {
+        'id': 1,
+        'bank_pan': '1234567890123456',
+        'is_default': true,
+      };
+
+      final card = CardModel.fromJson(json);
+
+      expect(card.id, equals(1));
+      expect(card.cardNumber, equals('1234567890123456'));
+      expect(card.isDefault, isTrue);
+    });
+
+    test('fromJson - is_default как int', () {
+      final json = {
+        'id': 1,
+        'bank_pan': '1234567890123456',
+        'is_default': 1,
+      };
+
+      final card = CardModel.fromJson(json);
+
+      expect(card.isDefault, isTrue);
+    });
+
+    test('fromJson - is_default как строка "1"', () {
+      final json = {
+        'id': 1,
+        'bank_pan': '1234567890123456',
+        'is_default': '1',
+      };
+
+      final card = CardModel.fromJson(json);
+
+      expect(card.isDefault, isTrue);
+    });
+
+    test('fromJson - is_default как false', () {
+      final json = {
+        'id': 1,
+        'bank_pan': '1234567890123456',
+        'is_default': false,
+      };
+
+      final card = CardModel.fromJson(json);
+
+      expect(card.isDefault, isFalse);
+    });
+
+    test('toJson - успешная сериализация', () {
+      final card = CardModel(
+        id: 1,
+        cardNumber: '1234567890123456',
+        isDefault: true,
+      );
+
+      final json = card.toJson();
+
+      expect(json['id'], equals(1));
+      expect(json['bank_pan'], equals('1234567890123456'));
+      expect(json['is_default'], isTrue);
+    });
+
+    test('copyWith - создание копии с изменениями', () {
+      final card = CardModel(
+        id: 1,
+        cardNumber: '1234567890123456',
+        isDefault: false,
+      );
+
+      final updatedCard = card.copyWith(isDefault: true);
+
+      expect(updatedCard.id, equals(1));
+      expect(updatedCard.cardNumber, equals('1234567890123456'));
+      expect(updatedCard.isDefault, isTrue);
+    });
+  });
+}
+

test/features/my_finance/models/payment_url_model_test.dart

@@ -0,0 +1,39 @@
+import 'package:eatvio_app/features/my_finance/models/payment_url_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('PaymentUrlModel', () {
+    test('fromJson - успешная десериализация', () {
+      final json = {
+        'paymentUrl': 'https://payment.example.com/checkout',
+      };
+
+      final model = PaymentUrlModel.fromJson(json);
+
+      expect(model.paymentUrl, equals('https://payment.example.com/checkout'));
+    });
+
+    test('toJson - успешная сериализация', () {
+      final model = PaymentUrlModel(
+        paymentUrl: 'https://payment.example.com/checkout',
+      );
+
+      final json = model.toJson();
+
+      expect(json['paymentUrl'], equals('https://payment.example.com/checkout'));
+    });
+
+    test('copyWith - создание копии с изменениями', () {
+      final model = PaymentUrlModel(
+        paymentUrl: 'https://payment.example.com/checkout',
+      );
+
+      final updatedModel = model.copyWith(
+        paymentUrl: 'https://payment.example.com/new',
+      );
+
+      expect(updatedModel.paymentUrl, equals('https://payment.example.com/new'));
+    });
+  });
+}
+