public async Task TestPutSuccess()
        {
            string endpoint = "update/271";

            var employee = new CreateOrUpdateEmployeeModal
            {
                name   = "johnUpd",
                salary = "123",
                age    = "25",
            };

            var stringContent            = CovertToHttpContent(employee);
            HttpResponseMessage response = await client.PutAsync(baseURL + endpoint, stringContent);

            Assert.That(response.StatusCode, Is.EqualTo(System.Net.HttpStatusCode.OK));
        }
        public async Task TestPostSuccess()
        {
            string endpoint = "create";

            var employee = new CreateOrUpdateEmployeeModal
            {
                name   = "doe",
                salary = "456",
                age    = "27",
                id     = "788"
            };

            var stringContent            = CovertToHttpContent(employee);
            HttpResponseMessage response = await client.PostAsync(baseURL + endpoint, stringContent);

            Assert.That(response.StatusCode, Is.EqualTo(System.Net.HttpStatusCode.OK));

            string responseContent = await client.GetStringAsync(baseURL + "employees");

            var employees = JsonConvert.DeserializeObject <List <EmployeeModal> >(responseContent);

            var retrievedEmployee = employees.Find(u => u.employee_name == "john");
        }