public void ParseDateFailure1Test(string input)
        {
            // arrange
            const int YEAR = 2015;

            // act
            // assert
            _ = Assert.Throws <InvalidDataException>(() => Sut.StringToDateTime(input, YEAR));
        }
        public void StringToDateTimeTest(string input, int year, int month, int day)
        {
            // arrange
            // act
            DateTime result = Sut.StringToDateTime(input, year);

            // assert
            Assert.Equal(result.Year, year);
            Assert.Equal(result.Month, month);
            Assert.Equal(result.Day, day);
        }