public void DeleteDefectTest()
        {
            //Arrange
            var       mock      = new Mock <IDefectService>();
            DefectDTO defectDTO = new DefectDTO();

            mock.Setup(a => a.AddDefect(defectDTO));
            DefectController controller = new DefectController(mock.Object);

            controller.Add(defectDTO);
            //Act
            var result = controller.Delete(defectDTO.DefectId);

            //Assert
            Assert.IsType <OkObjectResult>(result);
        }