public void WhenGivenNull_NullIsReturned()
            {
                var actual = ArgumentsBuilderExtension.GetArgumentFromNullableIntProperty(NullableIntProperty, null);

                Assert.That(actual, Is.Null);
            }
            public void WhenGivenValue_FormatsProperly()
            {
                var actual = ArgumentsBuilderExtension.GetArgumentFromNullableIntProperty(NullableIntProperty, 5);

                Assert.That(actual, Is.EqualTo("--nullable-int 5"));
            }