public void Given_An_Invalid_CardRulingsTask_PageSize_Validation_Should_Fail(int pageSize)
        {
            // Arrange
            var inputModel = new CardRulingsTask {
                PageSize = pageSize
            };

            // Act
            Action act = () => _sut.ShouldHaveValidationErrorFor(ci => ci.PageSize, inputModel);

            // Assert
            act.Invoke();
        }
        public void Given_An_Invalid_CardRulingTask_Category_Validation_Should_Fail(string category)
        {
            // Arrange
            var inputModel = new CardRulingsTask {
                Category = category
            };

            // Act
            Action act = () => _sut.ShouldHaveValidationErrorFor(ci => ci.Category, inputModel);

            // Assert
            act.Invoke();
        }