public void Test_NameValidNamespaceContainsInternalSpaceAndSpecialCharacter()
        {
            Datatype datatype = Datatype.BuildCustomDatatype("asdasd", "asd asd#");

            List <string> errors = datatype.ValidationErrors().ToList();

            errors.Contains(ErrorMessages.DatatypeIsRequired).ShouldBeFalse();
            errors.Contains(ErrorMessages.NameCannotContainAnInternalSpace).ShouldBeFalse();
            errors.Contains(ErrorMessages.NameCannotContainSpecialCharacters).ShouldBeFalse();
            errors.Contains(ErrorMessages.NamespaceCannotContainAnInternalSpace).ShouldBeTrue();
            errors.Contains(ErrorMessages.NamespaceIsNotValid).ShouldBeTrue();
        }