diff --git a/src/tests/stack/stack.controller.spec.ts b/src/tests/stack/stack.controller.spec.ts
index 0fa7587724057343758f6cce637c914599d7988f..4bcff741543c126209f29295217aa7788e87ddb2 100644
--- a/src/tests/stack/stack.controller.spec.ts
+++ b/src/tests/stack/stack.controller.spec.ts
@@ -57,7 +57,7 @@ describe('StackController', () => {
                 body,
             };
             const errors = [];
-            const response = {}
+            const response = {};
             jest.spyOn(stackService, 'add').mockImplementation(() => response);
             jest.spyOn(validateService, 'validateBody').mockResolvedValue(errors);
 
@@ -69,8 +69,8 @@ describe('StackController', () => {
         });
     });
 
-    describe('get item from stack and remove it',  () => {
-        it('When stack is empty -> should return 204',  () => {
+    describe('get item from stack and remove it', () => {
+        it('When stack is empty -> should return 204', () => {
             const body = {};
             const mockRequest = {
                 body,
@@ -86,7 +86,7 @@ describe('StackController', () => {
             expect(stackService.get).not.toBeCalled();
         });
 
-        it('When stack is not empty -> should return 200',  () => {
+        it('When stack is not empty -> should return 200', () => {
             const body = {};
             const mockRequest = {
                 body,
diff --git a/src/tests/stack/stack.repository.spec.ts b/src/tests/stack/stack.repository.spec.ts
index f1955d9dbcb0e05dd3c0c5a57842ec467e36c02f..d6554afcb33fba782611c7e950cdf1e1eef81af5 100644
--- a/src/tests/stack/stack.repository.spec.ts
+++ b/src/tests/stack/stack.repository.spec.ts
@@ -18,7 +18,7 @@ describe('StackRepository', () => {
 
     describe('add', () => {
         it('Should return created item', () => {
-            const data = 'some data'
+            const data = 'some data';
             const dto = {
                 data,
             };
@@ -32,8 +32,8 @@ describe('StackRepository', () => {
     });
 
     describe('get', () => {
-        it('Should call pop method',  () => {
-            const data = 'some data'
+        it('Should call pop method', () => {
+            const data = 'some data';
             const dto = {
                 data,
             };
@@ -47,7 +47,7 @@ describe('StackRepository', () => {
     });
 
     describe('isEmpty', () => {
-        it('When stack is empty -> should return true',  () => {
+        it('When stack is empty -> should return true', () => {
             const length = 0;
             jest.spyOn(stackModel, 'getLength').mockImplementation(() => length);
 
@@ -57,7 +57,7 @@ describe('StackRepository', () => {
             expect(result).toBe(true);
         });
 
-        it('When stack is not empty -> should return false',  () => {
+        it('When stack is not empty -> should return false', () => {
             const length = 2;
             jest.spyOn(stackModel, 'getLength').mockImplementation(() => length);
 
diff --git a/src/tests/stack/stack.validation-service.spec.ts b/src/tests/stack/stack.validation-service.spec.ts
index 674b6ef8f890f65b0d2bde619d92f8dffa4ba2b7..7b716aa6f94a2a6a9313211f253de580b30fec50 100644
--- a/src/tests/stack/stack.validation-service.spec.ts
+++ b/src/tests/stack/stack.validation-service.spec.ts
@@ -13,9 +13,9 @@ describe('StackValidationService', () => {
         jest.clearAllMocks();
     });
 
-    describe('validateBody',  () => {
+    describe('validateBody', () => {
         describe('When body does not pass validation', () => {
-            it('When body has extra properties -> should return errors',  async () => {
+            it('When body has extra properties -> should return errors', async () => {
                 const body = {
                     data: 'some data',
                     extra: 100,
@@ -26,7 +26,7 @@ describe('StackValidationService', () => {
                 expect(errors.length).not.toBe(0);
             });
 
-            it('When body is empty -> should return errors',  async () => {
+            it('When body is empty -> should return errors', async () => {
                 const body: any = {};
 
                 const errors = await validateService.validateBody(body);
@@ -34,7 +34,7 @@ describe('StackValidationService', () => {
                 expect(errors.length).not.toBe(0);
             });
 
-            it('When body wrong fields -> should return errors',  async () => {
+            it('When body wrong fields -> should return errors', async () => {
                 const body: any = {
                     dara: 6,
                 };
@@ -46,7 +46,7 @@ describe('StackValidationService', () => {
         });
 
         describe('When body pass validation', () => {
-            it('Should return empty array of errors',  async () => {
+            it('Should return empty array of errors', async () => {
                 const body = {
                     data: 'some data',
                 };
@@ -55,6 +55,6 @@ describe('StackValidationService', () => {
 
                 expect(errors.length).toBe(0);
             });
-        })
+        });
     });
 });
diff --git a/src/tests/ttl/ttl.controller.spec.ts b/src/tests/ttl/ttl.controller.spec.ts
index f3d6ddec189f38bf0d03707d6a64e403d83e9ecd..0282f99a0129391086070fdfe7a7378df609a64f 100644
--- a/src/tests/ttl/ttl.controller.spec.ts
+++ b/src/tests/ttl/ttl.controller.spec.ts
@@ -5,7 +5,11 @@ import { TtlService } from '../../modules/ttl/ttl.service';
 import { TtlValidationService } from '../../modules/ttl/validation';
 import { LoggerService } from '../../shared/logger';
 import { StatusCodes } from '../../common/constants';
-import { BadRequestException, ConflictException, NotFoundException } from '../../exceptions/http-exception';
+import {
+    BadRequestException,
+    ConflictException,
+    NotFoundException,
+} from '../../exceptions/http-exception';
 
 const mockResponse = {
     json: jest.fn(),
@@ -40,9 +44,9 @@ describe('TtlController', () => {
             };
             const errors: any[] = [new Error('Wrong data')];
             jest.spyOn(validateService, 'validateBody').mockResolvedValue(errors);
-            jest.spyOn(ttlService, 'get').mockImplementation(() => ({}) as any);
-            jest.spyOn(ttlService, 'add').mockImplementation(() => ({}) as any);
-            jest.spyOn(logger, 'error').mockImplementation(() => ({}) as any);
+            jest.spyOn(ttlService, 'get').mockImplementation(() => ({} as any));
+            jest.spyOn(ttlService, 'add').mockImplementation(() => ({} as any));
+            jest.spyOn(logger, 'error').mockImplementation(() => ({} as any));
 
             await ttlController.add(mockRequest, mockResponse, mockNextFunction);
 
@@ -54,16 +58,16 @@ describe('TtlController', () => {
         });
 
         describe('When body passes validation', () => {
-            it('When key already exists -> should return 409',  async () => {
+            it('When key already exists -> should return 409', async () => {
                 const body = {};
                 const mockRequest: any = {
                     body,
                 };
                 const errors: any[] = [];
                 jest.spyOn(validateService, 'validateBody').mockResolvedValue(errors);
-                jest.spyOn(ttlService, 'get').mockImplementation(() => ({}) as any);
-                jest.spyOn(ttlService, 'add').mockImplementation(() => ({}) as any);
-                jest.spyOn(logger, 'error').mockImplementation(() => ({}) as any);
+                jest.spyOn(ttlService, 'get').mockImplementation(() => ({} as any));
+                jest.spyOn(ttlService, 'add').mockImplementation(() => ({} as any));
+                jest.spyOn(logger, 'error').mockImplementation(() => ({} as any));
 
                 await ttlController.add(mockRequest, mockResponse, mockNextFunction);
 
@@ -75,13 +79,13 @@ describe('TtlController', () => {
                 expect(ttlService.add).not.toBeCalled();
             });
 
-            it('When key does not exist -> should return 201',  async () => {
+            it('When key does not exist -> should return 201', async () => {
                 const body = {};
                 const mockRequest: any = {
                     body,
                 };
                 const errors: any[] = [];
-                const result: any = {}
+                const result: any = {};
                 jest.spyOn(validateService, 'validateBody').mockResolvedValue(errors);
                 jest.spyOn(ttlService, 'get').mockImplementation(() => null as any);
                 jest.spyOn(ttlService, 'add').mockImplementation(() => result);
@@ -98,7 +102,7 @@ describe('TtlController', () => {
     });
 
     describe('get item', () => {
-        it('When key does not exist -> should return 404',  () => {
+        it('When key does not exist -> should return 404', () => {
             const params = {
                 key: '',
             };
@@ -106,7 +110,7 @@ describe('TtlController', () => {
                 params,
             };
             jest.spyOn(ttlService, 'get').mockImplementation(() => null as any);
-            jest.spyOn(logger, 'error').mockImplementation(() => ({}) as any);
+            jest.spyOn(logger, 'error').mockImplementation(() => ({} as any));
 
             ttlController.get(mockRequest, mockResponse, mockNextFunction);
 
@@ -115,7 +119,7 @@ describe('TtlController', () => {
             expect(mockResponse.status).not.toBeCalled();
         });
 
-        it('When key exists -> should return 200',  () => {
+        it('When key exists -> should return 200', () => {
             const params = {
                 key: '',
             };
@@ -142,7 +146,7 @@ describe('TtlController', () => {
             };
             const response: any = null;
             jest.spyOn(ttlService, 'remove').mockImplementation(() => response);
-            jest.spyOn(logger, 'error').mockImplementation(() => ({}) as any);
+            jest.spyOn(logger, 'error').mockImplementation(() => ({} as any));
 
             ttlController.remove(mockRequest, mockResponse, mockNextFunction);
 
diff --git a/src/tests/ttl/ttl.validation-service.spec.ts b/src/tests/ttl/ttl.validation-service.spec.ts
index 2a8acf41a9027d35019828ca11efe09d6ad69b58..e0e87b64d6fbc2bb044b3c1945dd1d1dff01f0aa 100644
--- a/src/tests/ttl/ttl.validation-service.spec.ts
+++ b/src/tests/ttl/ttl.validation-service.spec.ts
@@ -13,9 +13,9 @@ describe('TtlValidationService', () => {
         jest.clearAllMocks();
     });
 
-    describe('validateBody',  () => {
+    describe('validateBody', () => {
         describe('When body does not pass validation', () => {
-            it('When body has extra properties -> should return errors',  async () => {
+            it('When body has extra properties -> should return errors', async () => {
                 const body = {
                     key: 'name',
                     value: 100,
@@ -27,7 +27,7 @@ describe('TtlValidationService', () => {
                 expect(errors.length).not.toBe(0);
             });
 
-            it('When body is empty -> should return errors',  async () => {
+            it('When body is empty -> should return errors', async () => {
                 const body: any = {};
 
                 const errors = await validateService.validateBody(body);
@@ -35,7 +35,7 @@ describe('TtlValidationService', () => {
                 expect(errors.length).not.toBe(0);
             });
 
-            it('When body fields have wrong format -> should return errors',  async () => {
+            it('When body fields have wrong format -> should return errors', async () => {
                 const body: any = {
                     key: 6,
                     value: 100,
@@ -48,7 +48,7 @@ describe('TtlValidationService', () => {
         });
 
         describe('When body pass validation', () => {
-            it('Should return empty array of errors',  async () => {
+            it('Should return empty array of errors', async () => {
                 const body = {
                     key: 'name',
                     value: 'John',
@@ -58,6 +58,6 @@ describe('TtlValidationService', () => {
 
                 expect(errors.length).toBe(0);
             });
-        })
+        });
     });
 });