public async void PostDocumentTypeModelStateErrorReturnsBadRequest()
        {
            using (var context = DbTestContext.GenerateContextWithData())
                using (var controller = new DocumentTypesController(context, _mapper))
                {
                    controller.ModelState.AddModelError("an error", "some error");
                    DocumentTypeDto p11 = GetTestDocumentTypeDto(11);

                    var result = await controller.PostDocumentType(p11);

                    Assert.IsType <BadRequestObjectResult>(result);
                }
        }
        public async void PostDocumentTypeCorrectDataCreatesDocumentType()
        {
            using (var context = DbTestContext.GenerateContextWithData())
                using (var controller = new DocumentTypesController(context, _mapper))
                {
                    DocumentTypeDto p11 = GetTestDocumentTypeDto(11);

                    var result = await controller.PostDocumentType(p11);

                    Assert.NotNull(result);
                    var resultValue = Assert.IsType <CreatedAtActionResult>(result);
                }
        }