diff --git a/__tests__/errorController.test.ts b/__tests__/errorController.test.ts
index e723193..04e5b39 100644
--- a/__tests__/errorController.test.ts
+++ b/__tests__/errorController.test.ts
@@ -1,5 +1,7 @@
 import { Request, Response, NextFunction } from 'express';
-import { notFound, errorHandler } from '../server/controllers/errorControllers';
+import { notFound } from '../server/controllers/errorControllers';
+import errorHandler from '../server/middleware/errorHandler';
+import { BadRequestError } from '../server/errors';
 
 describe('Middleware Tests', () => {
   let mockRequest: Partial<Request>;
@@ -10,7 +12,7 @@ describe('Middleware Tests', () => {
     mockRequest = {};
     mockResponse = {
       status: jest.fn().mockReturnThis(),
-      json: jest.fn(),
+      send: jest.fn(),
     };
     mockNext = jest.fn();
   });
@@ -25,14 +27,15 @@ describe('Middleware Tests', () => {
 
   describe('errorHandler Middleware', () => {
     it('should handle the error correctly', () => {
-      const mockError = new Error('Some error');
+      const mockError = new BadRequestError('Some error');
       errorHandler(mockError, mockRequest as Request, mockResponse as Response, mockNext);
       expect(mockResponse.status).toHaveBeenCalledWith(400);
-      expect(mockResponse.json).toHaveBeenCalledWith(
-        expect.objectContaining({
-          message: expect.anything(),
-          stack: expect.any(String),
-        }),
+      expect(mockResponse.send).toHaveBeenCalledWith(
+        expect.objectContaining([
+          {
+            message: expect.any(String),
+          },
+        ]),
       );
     });
   });