public void DeleteEmployeeIfSuccess()
        {
            string empId = "6";

            NegotiatedContentResult <string> actionresult = (NegotiatedContentResult <string>)employeeController.DeleteEmployeeById(empId);

            Assert.AreEqual <HttpStatusCode>(HttpStatusCode.NoContent, actionresult.StatusCode);
            Assert.AreEqual("", actionresult.Content);
        }