def open(self, url):
        protocol, location = self.split(url)
        if protocol == self.protocol:
            return self.find(location)
        else:
            return None
Build a ``TestCase`` for verifying that an implementation of
dataset/ETHPy150Open CouchPotato/CouchPotatoServer/libs/suds/store.py/DocumentStore.open--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/testtools/_cinder.py/make_inovavolumemanager_tests