public void should_return_comparable_if_they_have_the_same_method_source_and_description()
{
_valueOrigin1.CompareTo(_valueOrigin2).ShouldBeEqualTo(0);
}
public void should_return_comparable_if_they_are_both_undefined()
{
_valueOrigin1 = new ValueOrigin();
_valueOrigin2 = new ValueOrigin();
_valueOrigin1.CompareTo(_valueOrigin2).ShouldBeEqualTo(0);
}