def test_similar_sets():
    cluster = Cluster()
    cluster.add_set("abcdefg")
    cluster.add_set("abcdefghi")
    assert len(cluster.get_sets()) == 1
L{NewsBuilder.buildAll} calls L{NewsBuilder.build} once for each
dataset/ETHPy150Open go2starr/lshhdc/tests/test_cluster.py/test_similar_sets--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/test/test_release.py/NewsBuilderTests.test_buildAll