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  • Committer: John Arbash Meinel
  • Date: 2009-08-26 16:03:59 UTC
  • mto: (4634.6.7 2.0)
  • mto: This revision was merged to the branch mainline in revision 4660.
  • Revision ID: john@arbash-meinel.com-20090826160359-ge4mai928bi3a5g2
https://launchpad.net/bugs/419241
Fix bug #419241. If a graph had a mainline ghost
we could get a segfault during KnownGraph.merge_sort().

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bzrlib/tests/test__known_graph.py
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             ('A', 0, (1,), True),
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            ])
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    def test_lefthand_ghost(self):
 
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        # ghost
 
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        #  |
 
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        #  A
 
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        #  |
 
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        #  B
 
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        self.assertSortAndIterate(
 
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            {'A': ['ghost'],
 
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             'B': ['A'],
 
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            }, 'B',
 
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            [('B', 0, (2,), False),
 
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             ('A', 0, (1,), True),
 
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            ])
 
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    def test_graph_cycle(self):
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        # merge_sort should fail with a simple error when a graph cycle is
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        # encountered.