public void TestMultiple()
        {
            // Arrange
            var subject = new ValidateInput();

            var counts = new[] { null as int?, 0, 1, 3, 5, 12 };

            // Act
            // Assert
            CombinationApprovals.VerifyAllCombinations(subject.ValidateGet, counts);
        }
        public void TestLogger()
        {
            // Arrange
            var logger = Logger.LogToStringBuilder();
            var subject = new ValidateInput();

            // Act
            subject.ValidateGet(0);
            subject.ValidateGet(1);
            subject.ValidateGet(3);
            subject.ValidateGet(5);
            subject.ValidateGet(12);

            // Assert
            Approvals.Verify(logger.ToString());
        }