def test_startProducingAfterFinishedFails(self):
        response = justTransportResponse(StringTransport())
        response.deliverBody(Protocol())
        response._bodyDataFinished()
        self.assertRaises(RuntimeError, response.deliverBody, Protocol())
Get md5 hexdigest of the blobfile with blobkey.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/web/test/test_newclient.py/ResponseTests.test_startProducingAfterFinishedFails--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/files/file_service_stub.py/BlobstoreStorage.get_md5_from_blob