fix in unit test
fix in unit test

shimpe/python-midi,chaosmail/python-midi,pdorrell/python-midi,chaosmail/python-midi,eli-b/python-midi,ListFranz/python-midi,jameswenzel/mydy,pdorrell/python-midi,eli-b/python-midi,jameswenzel/mydy,vishnubob/python-midi,ListFranz/python-midi,rlkelly/python-midi,chaosmail/python-midi,pdorrell/python-midi,vishnubob/python-midi,eli-b/python-midi,shimpe/python-midi,rlkelly/python-midi,jameswenzel/mydy,ListFranz/python-midi,rlkelly/python-midi,vishnubob/python-midi,shimpe/python-midi