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Viewing changes to bzrlib/tests/test_graph.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-03-24 23:19:12 UTC
  • mfrom: (4190.1.6 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20090324231912-rb0kgktzkvge8aea
(robertc) Negatively cache ghosts and misses during read-locks in
        RemoteRepository. (Robert Collins, Andrew Bennetts)

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bzrlib/tests/test_graph.py
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class TestCachingParentsProvider(tests.TestCase):
 
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    """These tests run with:
 
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    self.inst_pp, a recording parents provider with a graph of a->b, and b is a
 
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    ghost.
 
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    self.caching_pp, a CachingParentsProvider layered on inst_pp.
 
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    """
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    def setUp(self):
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        super(TestCachingParentsProvider, self).setUp()
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        self.assertEqual({}, self.caching_pp.get_parent_map(['b']))
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        # No new calls
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        self.assertEqual(['b'], self.inst_pp.calls)
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        self.assertEqual({'b':None}, self.caching_pp._cache)
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    def test_get_parent_map_mixed(self):
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        """Anything that can be returned from cache, should be"""
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        # only present 1 time.
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        self.assertEqual(['a', 'b'], sorted(self.inst_pp.calls))
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    def test_note_missing_key(self):
 
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        """After noting that a key is missing it is cached."""
 
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        self.caching_pp.note_missing_key('b')
 
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        self.assertEqual({}, self.caching_pp.get_parent_map(['b']))
 
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        self.assertEqual([], self.inst_pp.calls)
 
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        self.assertEqual(set(['b']), self.caching_pp.missing_keys)
 
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class TestCachingParentsProviderExtras(tests.TestCaseWithTransport):
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    """Test the behaviour when parents are provided that were not requested."""