def test_blame(self):

       p = self.root.join('samplepickle')

       lines = p.blame()

       assert sum([l[0] for l in lines]) == len(lines)

->     for l1, l2 in zip(p.readlines(), [l[2] for l in lines]):

           assert l1 == l2

       assert [l[1] for l in lines] == ['hpk'] * len(lines)

       p = self.root.join('samplefile')

       lines = p.blame()

       assert sum([l[0] for l in lines]) == len(lines)

       for l1, l2 in zip(p.readlines(), [l[2] for l in lines]):

           assert l1 == l2

       assert [l[1] for l in lines] == ['hpk'] * len(lines)