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Viewing changes to bzrlib/selftest/testgraph.py

  • Committer: Robert Collins
  • Date: 2005-10-02 22:47:02 UTC
  • mto: This revision was merged to the branch mainline in revision 1397.
  • Revision ID: robertc@robertcollins.net-20051002224701-8a8b20b90de559a6
support ghosts in commits

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bzrlib/selftest/testgraph.py
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from bzrlib.tests import TestCase
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from bzrlib.graph import node_distances, nodes_by_distance, Graph
 
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from bzrlib.selftest import TestCase
 
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from bzrlib.graph import node_distances, nodes_by_distance
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class TestBase(TestCase):
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    def edge_add(self, *args):
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        for start, end in zip(args[:-1], args[1:]):
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            if start not in self.graph:
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        distances = node_distances(self.graph, descendants, 'A')
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        nodes = nodes_by_distance(distances)
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        self.assertEqual(nodes[0], 'D')
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        self.assert_(nodes[1] in ('N', 'C'))
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        self.assert_(nodes[2] in ('N', 'C'))
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        self.assert_(nodes[3] in ('B', 'M'))
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        self.assert_(nodes[4] in ('B', 'M'))
 
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        assert nodes[1] in ('N', 'C')
 
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        assert nodes[2] in ('N', 'C')
 
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        assert nodes[3] in ('B', 'M')
 
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        assert nodes[4] in ('B', 'M')
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        #Ensure we don't shortcut through B when there's only a difference of
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        # 1 in distance
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        distances = node_distances(self.graph, descendants, 'A')
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        self.assertEqual(distances['C'], 3)
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class TestGraph(TestCase):
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    def test_get_descendants(self):
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        # Graph objects let you get a descendants graph in 
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        # node: {direct-children:distance} which contains
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        # known children, including ghost children
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        graph = Graph()
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        graph.add_ghost('ghost')
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        graph.add_node('rev1', ['ghost'])
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        # check the result contains ghosts:
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        self.assertEqual({'ghost': {'rev1': 1}, 'rev1': {}},
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                         graph.get_descendants())