def test_udate_all_bibs(self):
        c = ClusterSet()
        c.clusters = self.clusters
        c.update_bibs()

        self.assertTrue(c.num_all_bibs == 50)
        self.assertTrue( sorted(list((c.all_bibs()))) ==
                         list(chain.from_iterable(range(i*10,i*10+5) for i in range(10))))
    def test_udate_all_bibs(self):
        c = ClusterSet()
        c.clusters = self.clusters
        c.update_bibs()

        self.assertTrue(c.num_all_bibs == 50)
        self.assertTrue(
            sorted(list((c.all_bibs()))) == list(
                chain.from_iterable(
                    range(i * 10, i * 10 + 5) for i in range(10))))