def test_GirderFileIdToStream_calls_GirderFileStreamReader_correctly():
    gfis = GirderFileIdToStream('BOGUS_ID', gc='BOGUS_GC')
    with mock.patch('girder_worker.docker.io.girder.GirderFileStreamReader'
                    ) as mock_class_gfsr:
        gfis.transform()
        mock_class_gfsr.assert_called_with('BOGUS_GC', 'BOGUS_ID')
def test_GirderFileIdToStream_returns_GirderFileStreamReader():
    gfis = GirderFileIdToStream('BOGUS_ID', gc='BOGUS_GC')
    assert isinstance(gfis.transform(), GirderFileStreamReader)