Added test cases for mutually exclusive elements.
Added test cases for mutually exclusive elements.

whummer/moto,spulec/moto,whummer/moto,william-richard/moto,whummer/moto,whummer/moto,william-richard/moto,whummer/moto,spulec/moto,william-richard/moto,spulec/moto,william-richard/moto,william-richard/moto,spulec/moto,whummer/moto,spulec/moto,william-richard/moto,spulec/moto