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Viewing changes to bzrlib/tests/test_chk_map.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-07-20 08:56:45 UTC
  • mfrom: (4526.9.23 apply-inventory-delta)
  • Revision ID: pqm@pqm.ubuntu.com-20090720085645-54mtgybxua0yx6hw
(robertc) Add checks for inventory deltas which try to ensure that
        deltas that are not an exact fit are not applied. (Robert
        Collins, bug 397705, bug 367633)

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bzrlib/tests/test_chk_map.py
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from bzrlib import (
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    chk_map,
 
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    errors,
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    groupcompress,
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    osutils,
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    tests,
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class TestCaseWithStore(tests.TestCaseWithMemoryTransport):
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    def get_chk_bytes(self):
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        # The easiest way to get a CHK store is a development6 repository and
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        # then work with the chk_bytes attribute directly.
 
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        # This creates a standalone CHK store.
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        factory = groupcompress.make_pack_factory(False, False, 1)
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        self.chk_bytes = factory(self.get_transport())
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        return self.chk_bytes
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        # updated key.
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        self.assertEqual(new_root, chkmap._root_node._key)
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    def test_apply_new_keys_must_be_new(self):
 
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        # applying a delta (None, "a", "b") to a map with 'a' in it generates
 
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        # an error.
 
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        chk_bytes = self.get_chk_bytes()
 
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        root_key = CHKMap.from_dict(chk_bytes, {("a",):"b"})
 
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        chkmap = CHKMap(chk_bytes, root_key)
 
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        self.assertRaises(errors.InconsistentDelta, chkmap.apply_delta,
 
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            [(None, ("a",), "b")])
 
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        # As an error occured, the update should have left us without changing
 
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        # anything (the root should be unchanged).
 
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        self.assertEqual(root_key, chkmap._root_node._key)
 
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    def test_apply_delta_is_deterministic(self):
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        chk_bytes = self.get_chk_bytes()
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        chkmap1 = CHKMap(chk_bytes, None)