Add changeFilename test
Add changeFilename test

nteract/composition,jdetle/nteract,nteract/nteract,nteract/composition,captainsafia/nteract,jdfreder/nteract,nteract/nteract,0u812/nteract,captainsafia/nteract,rgbkrk/nteract,nteract/nteract,jdetle/nteract,temogen/nteract,rgbkrk/nteract,rgbkrk/nteract,nteract/nteract,0u812/nteract,rgbkrk/nteract,captainsafia/nteract,temogen/nteract,nteract/nteract,jdfreder/nteract,nteract/composition,rgbkrk/nteract,jdfreder/nteract,temogen/nteract,jdetle/nteract,0u812/nteract,0u812/nteract,jdfreder/nteract,jdetle/nteract,captainsafia/nteract