feat(test): oauth, prefs, credentials

test/features/auth/models/credentials_model_test.dart

@@ -0,0 +1,62 @@
+import 'package:eatvio_app/features/auth/models/credentials_model.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import '../../../fixtures/fixture_reader.dart';
+
+void main() {
+  group('CredentialsModel', () {
+    late Map<String, dynamic> credentialsFixture;
+
+    setUp(() {
+      credentialsFixture = FixtureReader.readAsMap('auth/login_credentials.json');
+    });
+
+    test('создание модели из JSON', () {
+      final model = CredentialsModel.fromJson(credentialsFixture);
+
+      expect(model.email, credentialsFixture['email']);
+      expect(model.password, credentialsFixture['password']);
+    });
+
+    test('создание модели через конструктор', () {
+      const model = CredentialsModel(
+        email: 'test@example.com',
+        password: 'password123',
+      );
+
+      expect(model.email, 'test@example.com');
+      expect(model.password, 'password123');
+    });
+
+    test('преобразование модели в JSON', () {
+      const model = CredentialsModel(
+        email: 'test@example.com',
+        password: 'password123',
+      );
+
+      final json = model.toJson();
+
+      expect(json['email'], 'test@example.com');
+      expect(json['password'], 'password123');
+    });
+
+    test('равенство моделей', () {
+      const model1 = CredentialsModel(
+        email: 'test@example.com',
+        password: 'password123',
+      );
+      const model2 = CredentialsModel(
+        email: 'test@example.com',
+        password: 'password123',
+      );
+      const model3 = CredentialsModel(
+        email: 'other@example.com',
+        password: 'password123',
+      );
+
+      expect(model1, equals(model2));
+      expect(model1, isNot(equals(model3)));
+    });
+  });
+}
+