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Viewing changes to bzrlib/tests/test_chk_map.py

  • Committer: Jelmer Vernooij
  • Date: 2010-04-30 11:03:59 UTC
  • mto: This revision was merged to the branch mainline in revision 5197.
  • Revision ID: jelmer@samba.org-20100430110359-ow3e3grh7sxy93pa
Remove more unused imports.

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bzrlib/tests/test_chk_map.py
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"""Tests for maps built on a CHK versionedfiles facility."""
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from itertools import izip
 
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from bzrlib import (
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    chk_map,
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    errors,
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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_delete_to_internal_node(self):
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        # applying a delta should be convert an internal root node to a leaf
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        # node if the delta shrinks the map enough.
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        store = self.get_chk_bytes()
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        chkmap = CHKMap(store, None)
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        # Add three items: 2 small enough to fit in one node, and one huge to
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        # force multiple nodes.
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        chkmap._root_node.set_maximum_size(100)
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        chkmap.map(('small',), 'value')
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        chkmap.map(('little',), 'value')
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        chkmap.map(('very-big',), 'x' * 100)
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        # (Check that we have constructed the scenario we want to test)
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        self.assertIsInstance(chkmap._root_node, InternalNode)
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        # Delete the huge item so that the map fits in one node again.
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        delta = [(('very-big',), None, None)]
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        chkmap.apply_delta(delta)
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        self.assertCanonicalForm(chkmap)
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        self.assertIsInstance(chkmap._root_node, LeafNode)
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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.