updated tests using request methods without mocking dio

test/features/authentication/data/data_source/login_remote_data_source_test.dart

@@ -3,20 +3,22 @@ import 'dart:convert';
 import 'package:dartz/dartz.dart';
 import 'package:dio/dio.dart';
 import 'package:flutter_project/core/failure.dart';
+import 'package:flutter_project/core/request.dart';
 import 'package:flutter_project/core/service_locator.dart';
 import 'package:flutter_project/features/auth/data/datasource/login_remote_datasource.dart';
 import 'package:flutter_project/features/auth/data/models/user_model.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
 
 import '../../../../fixtures/fixture.dart';
 
 void main() {
-  late FakeDio fakeDio;
+  late MockRequest mockRequest;
   late LoginRemoteDataSourceImpl loginRemoteDataSource;
   setUpAll(
     () {
-      fakeDio = FakeDio();
-      serviceLocator.registerFactory<Dio>(() => fakeDio);
+      mockRequest = MockRequest();
+      serviceLocator.registerFactory<Request>(() => mockRequest);
       loginRemoteDataSource = LoginRemoteDataSourceImpl();
     },
   );
@@ -27,52 +29,59 @@ void main() {
   test(
     'should return user model on successful login',
     () async {
-      fakeDio.response = Response(
-        requestOptions: RequestOptions(path: ''),
-        statusCode: 200,
-        data: user.toJson(),
+      when(
+        () => mockRequest.post(
+          any(),
+          data: any(named: 'data'),
+        ),
+      ).thenAnswer(
+        (_) async => Response(
+          statusCode: 200,
+          data: user.toJson(),
+          requestOptions: RequestOptions(
+            baseUrl: '',
+            path: '',
+          ),
+        ),
       );
 
       final response =
           await loginRemoteDataSource.loginUser(user: User.fromJson({}));
+
       expect(response, Right(user));
     },
   );
   test(
     'should return connection failure on login failed',
     () async {
-      fakeDio.response = Response(
-        requestOptions: RequestOptions(path: ''),
-        statusCode: 404,
-        data: {'message': 'Failure'},
+      const String message = 'Unable to connect';
+      when(
+        () => mockRequest.post(
+          any(),
+          data: any(named: 'data'),
+        ),
+      ).thenAnswer(
+        (_) async => Response(
+          statusCode: 400,
+          data: {'message': message},
+          requestOptions: RequestOptions(
+            baseUrl: '',
+            path: '',
+          ),
+        ),
       );
 
       final response =
           await loginRemoteDataSource.loginUser(user: User.fromJson({}));
+
       expect(
         response,
         const Left(
-          ConnectionFailure('Failure'),
+          ConnectionFailure(message),
         ),
       );
     },
   );
 }
 
-class FakeDio extends Fake implements Dio {
-  late Response _reponse;
-  set response(Response res) {
-    _reponse = res;
-  }
-
-  @override
-  Future<Response<T>> post<T>(String path,
-      {data,
-      Map<String, dynamic>? queryParameters,
-      Options? options,
-      CancelToken? cancelToken,
-      ProgressCallback? onSendProgress,
-      ProgressCallback? onReceiveProgress}) async {
-    return _reponse as Response<T>;
-  }
-}
+class MockRequest extends Mock implements Request {}