diff --git a/base/assertions.py b/base/assertions.py
index 4023cb8..e9b22db 100644
--- a/base/assertions.py
+++ b/base/assertions.py
@@ -3,9 +3,43 @@
 
 
 class Assertions:
+
     @staticmethod
     def assert_code_status(response: Response, expected_status_code):
+        """Check status code is expected"""
         actual_status_code = response.status_code
-        with allure.step(f"Expected status {expected_status_code}"):
+        with allure.step(f'Expected status {expected_status_code}'):
             assert actual_status_code == expected_status_code, \
-                f"Unexpected status code. Expected: {expected_status_code}. Actual: {actual_status_code}"
+                f'Unexpected status code. Expected: {expected_status_code}. Actual: {actual_status_code}'
+
+    @staticmethod
+    def assert_response_is_json(response: Response):
+        """Check response has json format"""
+        with allure.step('Response is in JSON format'):
+            assert 'application/json' in response.headers.get('Content-Type', ''), \
+                'Error: Response is not in JSON format'
+
+    @staticmethod
+    def assert_is_not_code_status(response: Response, expected_status_code):
+        """Check status code is wrong"""
+        actual_status_code = response.status_code
+        with allure.step(f'Expected status is not equal {expected_status_code}'):
+            assert actual_status_code != expected_status_code, \
+                f'Unexpected status code. Expected not {expected_status_code}. Actual: {actual_status_code}'
+
+    @staticmethod
+    def assert_key_name_is_in_response(response: Response, key_name):
+        """Check if the required key is in the response"""
+        json_value = response.json()
+        actual_key = json_value.get(key_name)
+        with allure.step(f'The key {actual_key} exist'):
+            assert actual_key is not None, f'The key {actual_key} does not exist'
+
+    @staticmethod
+    def assert_key_value_is_in_response(response: Response, data, key_name):
+        """Check if the required value is in the response"""
+        json_value = response.json()
+        actual_key = json_value[key_name]
+        expected_key = data[key_name]
+        with allure.step(f'Actual key is {expected_key}'):
+            assert actual_key == expected_key, f'Actual key {expected_key} is not in response'
diff --git a/base/logger.py b/base/logger.py
index fb2e1a3..285d7a4 100644
--- a/base/logger.py
+++ b/base/logger.py
@@ -19,7 +19,7 @@ def _write_log_to_file(cls, data: str):
 
     @classmethod
     def add_request(cls, url: str, data: dict, headers: dict, cookies: dict, method: str):
-        data_to_add = f"{'#'*120}\n\n"
+        data_to_add = f'***\n\n'
         data_to_add += f'{str(datetime.datetime.now().strftime("%d.%m.%Y %H:%M:%S"))}\n'
         data_to_add += f"Test name: {os.environ.get('PYTEST_CURRENT_TEST')}\n"
         data_to_add += f"Request method: {method}\n"
diff --git a/base/methods.py b/base/methods.py
index 4cfd1b2..c7b23a2 100644
--- a/base/methods.py
+++ b/base/methods.py
@@ -3,7 +3,7 @@
 from base.logger import Logger
 
 
-class BaseRequests:
+class BaseRequests():
 
     @staticmethod
     def _send(link: str, data: dict, headers: {}, cookies: {}, method: str):
diff --git a/data/constant.py b/data/constant.py
index b278491..b4481cc 100644
--- a/data/constant.py
+++ b/data/constant.py
@@ -1,3 +1,4 @@
+import pytest
 from faker import Faker
 
 faker = Faker('En')
@@ -5,12 +6,21 @@
 
 
 class Constant:
-    BASE_URL = 'https://reqres.in/api/users'
-
-    CREATE_USER = {"name": faker.name(), "job": faker.job()}
+    BASE_URL = 'https://reqres.in/'
+    WRONG_URL = 'http://reqres.in/'
 
 
 class StatusCode:
     STATUS_CODE_200 = 200
     STATUS_CODE_201 = 201
     STATUS_CODE_404 = 404
+
+
+class Data:
+    CREATE_USER = {"name": faker.name(), "job": faker.job()}
+    NAME_USER = {"name": faker.name()}
+    JOB_USER = {"job": faker.job()}
+    CREATE_USER_NAME_NONE ={"name": None, "job": faker.job()}
+    CREATE_USER_JOB_NONE = {"name": faker.name(), "job": None}
+    LIST_KEY = ['id', 'createdAt', pytest.param('name', marks=pytest.mark.xfail(reason='Bag')),
+                pytest.param('job', marks=pytest.mark.xfail(reason='Bag'))]
diff --git a/tests/create_users_test.py b/tests/create_users_test.py
index 2350b7e..cbdc053 100644
--- a/tests/create_users_test.py
+++ b/tests/create_users_test.py
@@ -1,15 +1,80 @@
 import allure
+import pytest
+
 from base.assertions import Assertions
-from data.constant import StatusCode, Constant
+from data.constant import StatusCode, Data, Constant
 from base.methods import BaseRequests
 
 
-@allure.epic("Create User")
+@allure.epic('Create User')
 class TestCreateUser:
     status = StatusCode
+    data = Data
     constant = Constant
 
-    @allure.title("POST Создать пользователя")
+    @allure.title('POST Create user')
     def test_post_create_user(self):
-        response = BaseRequests.post(url='', headers=self.constant.CREATE_USER)
+        response = BaseRequests.post(url='api/users', headers=self.data.CREATE_USER)
         Assertions.assert_code_status(response, self.status.STATUS_CODE_201)
+
+    @allure.title('Check format is json')
+    def test_post_create_user_response_is_json(self):
+        response = BaseRequests.post(url='api/users', headers=self.data.CREATE_USER)
+        Assertions.assert_response_is_json(response)
+
+    @pytest.mark.parametrize('key_name', data.LIST_KEY)
+    @allure.title('Check response has key job')
+    def test_post_create_user_key_name_is_in_response(self, key_name):
+        headers = self.data.CREATE_USER
+        response = BaseRequests.post(url='api/users', headers=headers)
+        Assertions.assert_key_name_is_in_response(response, key_name)
+
+    @pytest.mark.xfail(reason='Bag')
+    @pytest.mark.parametrize('key_name', data.CREATE_USER)
+    @allure.title('Check response has key job')
+    def test_post_create_user_key_value_is_in_response(self, key_name):
+        headers = self.data.CREATE_USER
+        response = BaseRequests.post(url='api/users', headers=headers)
+        Assertions.assert_key_value_is_in_response(response, headers, key_name)
+
+    @allure.title('GET Send request get with body')
+    def test_get_create_user(self):
+        response = BaseRequests.get(url='api/users', headers=self.data.CREATE_USER)
+        Assertions.assert_code_status(response, self.status.STATUS_CODE_200)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Создать пользователя без тела запроса')
+    def test_post_create_user_without_body(self):
+        response = BaseRequests.post(url='api/users')
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Create user without job')
+    def test_post_create_user_without_job(self):
+        response = BaseRequests.post(url='api/users', data=self.data.NAME_USER)
+        print('cod', response.status_code)
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Create user without name')
+    def test_post_create_user_without_name(self):
+        response = BaseRequests.post(url='api/users', headers=self.data.JOB_USER)
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Create user with None job')
+    def test_post_create_user_with_none_job(self):
+        response = BaseRequests.post(url='api/users', headers=self.data.CREATE_USER_JOB_NONE)
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Create user with None name')
+    def test_post_create_user_with_none_name(self):
+        response = BaseRequests.post(url='api/users', headers=self.data.CREATE_USER)
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
+
+    @pytest.mark.xfail(reason='Bag')
+    @allure.title('POST Create user as {}')
+    def test_post_create_user_as_none(self):
+        response = BaseRequests.post(url='api/users', headers={})
+        Assertions.assert_is_not_code_status(response, self.status.STATUS_CODE_201)
diff --git a/tests/list_users_test.py b/tests/list_users_test.py
deleted file mode 100644
index e128834..0000000
--- a/tests/list_users_test.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import allure
-from base.assertions import Assertions
-from data.constant import StatusCode
-from base.methods import BaseRequests
-
-
-@allure.epic("List Users")
-class TestListUsers:
-    status = StatusCode
-
-    @allure.title("GET Получить список пользователей")
-    def test_get_list_users(self):
-        response = BaseRequests.get(url='?page=2')
-        Assertions.assert_code_status(response, self.status.STATUS_CODE_200)
-
-    @allure.title("GET Получить список пользователей неверный эндпоинт")
-    def test_get_users(self):
-        response = BaseRequests.get(url='/str')
-        Assertions.assert_code_status(response, self.status.STATUS_CODE_404)
diff --git a/tests/single_user_test.py b/tests/single_user_test.py
deleted file mode 100644
index 5c47b21..0000000
--- a/tests/single_user_test.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import allure
-from base.assertions import Assertions
-from data.constant import StatusCode
-from base.methods import BaseRequests
-
-
-@allure.epic("GET Single User")
-class TestAPISingleUser:
-    status = StatusCode
-
-    @allure.title("GET Получить одного пользователя с id 2")
-    def test_get_single_user(self):
-        response = BaseRequests.get(url='2')
-        Assertions.assert_code_status(response, self.status.STATUS_CODE_200)
-
-    @allure.title("GET Попытка получить несуществующего пользователя с id 23")
-    def test_get_not_existing_single_user(self):
-        response = BaseRequests.get(url='/23')
-        Assertions.assert_code_status(response, self.status.STATUS_CODE_404)