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# Copyright (C) 2008, 2009, 2010 Canonical Ltd
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# Copyright (C) 2008-2011, 2016 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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self.assertTrue(len(common) <= len(key))
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self.assertStartsWith(prefix, common)
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self.assertStartsWith(key, common)
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self.assertEquals(expected_common, common)
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self.assertEqual(expected_common, common)
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def test_common_prefix(self):
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self.assertCommonPrefix('beg', 'beg', 'begin')
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" ('ddd',) 'initial ddd content'\n",
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c_map._dump_tree())
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def test_one_deep_map_16(self):
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def test_root_only_aaa_ddd_16(self):
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c_map = self.make_root_only_aaa_ddd_map(
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search_key_func=chk_map._search_key_16)
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# We use 'aaa' and 'ddd' because they happen to map to 'F' when using
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# Leaf nodes must have identical contents
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self.assertEqual(node_one._items, node_two._items)
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self.assertEquals([], node_two_stack)
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self.assertEqual([], node_two_stack)
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def assertCanonicalForm(self, chkmap):
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"""Assert that the chkmap is in 'canonical' form.
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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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basis_get = basis._store.get_record_stream
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def get_record_stream(keys, order, fulltext):
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if ('sha1:1adf7c0d1b9140ab5f33bb64c6275fa78b1580b7',) in keys:
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self.fail("'aaa' pointer was followed %r" % keys)
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raise AssertionError("'aaa' pointer was followed %r" % keys)
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return basis_get(keys, order, fulltext)
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basis._store.get_record_stream = get_record_stream
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result = sorted(list(target.iter_changes(basis)))