def METHOD_NAME():
    testdata = b'foo bar\n'
    for i in range(1050):
        clusterIO.put_file('_testing/lots_of_folders/test_%d/test.txt' % i, testdata, 'TES1')
        listing = clusterIO.listdir('_testing/lots_of_folders/test_%d/' % i, 'TES1')
    #assert (len(listing) == 10)