TST: switch raises decorator and assert_raises to pytest
TST: switch raises decorator and assert_raises to pytest

ericdill/databroker,hhslepicka/metadatastore,tacaswell/metadataStore,arkilic/metadatastore,hhslepicka/metadatastore,NSLS-II/metadatastore,arkilic/metadatastore,tacaswell/metadataStore,ericdill/databroker,NSLS-II/metadatastore