public void DateOfBirthTryParseCanOutNullValue()
        {
            DateOfBirth result;

            DateOfBirth.TryParse("1920-02-09", out result);
            Assert.IsNull(result);
        }
        public void DateOfBirthTryParseCanOutValidResult()
        {
            DateOfBirth result;

            DateOfBirth.TryParse("2012-03-29", out result);
            Assert.IsTrue($"{result:yyyy-MM-dd}" == "2012-03-29");
        }
        public void DateOfBirthTryParseCanReturnFalse()
        {
            DateOfBirth result;

            Assert.IsFalse(DateOfBirth.TryParse("1776-07-04", out result));
        }
        public void DateOfBirthTryParseCanReturnTrue()
        {
            DateOfBirth result;

            Assert.IsTrue(DateOfBirth.TryParse("1995-05-01", out result));
        }