add exception on exception test
add exception on exception test

dask/distributed,blaze/distributed,mrocklin/distributed,mrocklin/distributed,dask/distributed,broxtronix/distributed,amosonn/distributed,dask/distributed,dask/distributed,broxtronix/distributed,blaze/distributed,amosonn/distributed,mrocklin/distributed,broxtronix/distributed,amosonn/distributed