diff --git a/Backend/src/app/shared/shared.controller.spec.ts b/Backend/src/app/shared/shared.controller.spec.ts
index e7744c3..d1f0c0b 100644
--- a/Backend/src/app/shared/shared.controller.spec.ts
+++ b/Backend/src/app/shared/shared.controller.spec.ts
@@ -1,5 +1,6 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { SharedController } from './shared.controller';
+import { DatabaseService } from '../../database/database.service';
 
 describe('SharedController', () => {
   let controller: SharedController;
@@ -7,6 +8,7 @@ describe('SharedController', () => {
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
       controllers: [SharedController],
+      providers: [DatabaseService],
     }).compile();
 
     controller = module.get<SharedController>(SharedController);
diff --git a/Backend/src/cameraStream/cameraStream.gateway.spec.ts b/Backend/src/cameraStream/cameraStream.gateway.spec.ts
index 67ad93b..1158e50 100644
--- a/Backend/src/cameraStream/cameraStream.gateway.spec.ts
+++ b/Backend/src/cameraStream/cameraStream.gateway.spec.ts
@@ -4,13 +4,14 @@ import { JwtModule } from '@nestjs/jwt';
 
 import { OpenVidu } from 'openvidu-node-client';
 import { CSSOpenVidu } from './open-vidu.service';
+import { DatabaseService } from '../database/database.service';
 
 describe('WebStreamGateway', () => {
   let gateway: CameraStreamGateway;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
-      providers: [CameraStreamGateway, CSSOpenVidu],
+      providers: [CameraStreamGateway, CSSOpenVidu, DatabaseService],
       imports: [
         JwtModule.register({
           global: true,
diff --git a/Backend/src/validators/camera-id/camera.pipe.spec.ts b/Backend/src/validators/camera-id/camera.pipe.spec.ts
index 1ecba0c..faeae7f 100644
--- a/Backend/src/validators/camera-id/camera.pipe.spec.ts
+++ b/Backend/src/validators/camera-id/camera.pipe.spec.ts
@@ -4,8 +4,8 @@ describe('CameraIdPipe', () => {
   const validator = new PositiveNumberValidator();
   it('should throw as not correct value', () => {
     expect(() => validator.transform('-200')).toThrow();
-    expect(() => validator.transform('200')).toEqual(200);
-    expect(() => validator.transform(',')).toEqual(undefined);
-    expect(() => validator.transform(undefined)).toEqual(undefined);
+    expect(validator.transform('200')).toBe(200);
+    expect(validator.transform(',')).toEqual(undefined);
+    expect(validator.transform(undefined)).toEqual(undefined);
   });
 });