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Viewing changes to bzrlib/tests/test_btree_index.py

  • Committer: Jelmer Vernooij
  • Date: 2011-12-16 16:40:10 UTC
  • mto: This revision was merged to the branch mainline in revision 6391.
  • Revision ID: jelmer@samba.org-20111216164010-z3hy00xrnclnkf7a
Update tests.

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bzrlib/tests/test_btree_index.py
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# Copyright (C) 2008, 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2008-2011 Canonical Ltd
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#
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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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    )
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from bzrlib.tests import (
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    TestCaseWithTransport,
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    condition_isinstance,
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    multiply_tests,
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    split_suite_by_condition,
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    )
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def load_tests(standard_tests, module, loader):
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    # parameterise the TestBTreeNodes tests
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    node_tests, others = split_suite_by_condition(standard_tests,
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        condition_isinstance(TestBTreeNodes))
 
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    scenarios,
 
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    )
 
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from bzrlib.tests import (
 
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    features,
 
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    )
 
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load_tests = scenarios.load_tests_apply_scenarios
 
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def btreeparser_scenarios():
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    import bzrlib._btree_serializer_py as py_module
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    scenarios = [('python', {'parse_btree': py_module})]
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    if compiled_btreeparser_feature.available():
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        scenarios.append(('C', {'parse_btree':
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                                compiled_btreeparser_feature.module}))
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    return multiply_tests(node_tests, scenarios, others)
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compiled_btreeparser_feature = tests.ModuleAvailableFeature(
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                                'bzrlib._btree_serializer_pyx')
 
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        scenarios.append(('C', 
 
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            {'parse_btree': compiled_btreeparser_feature.module}))
 
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    return scenarios
 
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compiled_btreeparser_feature = features.ModuleAvailableFeature(
 
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    'bzrlib._btree_serializer_pyx')
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class BTreeTestCase(TestCaseWithTransport):
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        for node in nodes:
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            builder.add_node(*node)
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        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', self.time(builder.finish))
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        del builder
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        for key, value, references in nodes:
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            builder.add_node(key, value, references)
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        stream = builder.finish()
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        trans = transport.get_transport('trace+' + self.get_url())
 
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        trans = transport.get_transport_from_url('trace+' + self.get_url())
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        size = trans.put_file('index', stream)
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        return btree_index.BTreeGraphIndex(trans, 'index', size)
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        self.assertEqual(0, len(index._leaf_node_cache))
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    def test_trivial_constructor(self):
651
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        index = btree_index.BTreeGraphIndex(t, 'index', None)
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        # Checks the page size at load, but that isn't logged yet.
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        self.assertEqual([], t._activity)
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    def test_with_size_constructor(self):
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        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        index = btree_index.BTreeGraphIndex(t, 'index', 1)
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        # Checks the page size at load, but that isn't logged yet.
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        self.assertEqual([], t._activity)
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    def test_empty_key_count_no_size(self):
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        builder = btree_index.BTreeBuilder(key_elements=1, reference_lists=0)
664
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        t.put_file('index', builder.finish())
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        index = btree_index.BTreeGraphIndex(t, 'index', None)
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        del t._activity[:]
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    def test_empty_key_count(self):
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        builder = btree_index.BTreeBuilder(key_elements=1, reference_lists=0)
677
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        self.assertEqual(72, size)
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        nodes = self.make_nodes(35, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
693
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        del t._activity[:]
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723
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    def test__read_nodes_no_size_one_page_reads_once(self):
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        self.make_index(nodes=[(('key',), 'value', ())])
725
 
        trans = transport.get_transport('trace+' + self.get_url())
 
726
        trans = transport.get_transport_from_url('trace+' + self.get_url())
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        index = btree_index.BTreeGraphIndex(trans, 'index', None)
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        del trans._activity[:]
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        nodes = dict(index._read_nodes([0]))
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        index.key_count()
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        num_pages = index._row_offsets[-1]
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        # Reopen with a traced transport and no size
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        trans = transport.get_transport('trace+' + self.get_url())
 
740
        trans = transport.get_transport_from_url('trace+' + self.get_url())
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        index = btree_index.BTreeGraphIndex(trans, 'index', None)
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        del trans._activity[:]
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        nodes = dict(index._read_nodes([0]))
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        nodes = self.make_nodes(160, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
750
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        self.assertEqual(17692, size)
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        nodes = self.make_nodes(45, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
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        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        del t._activity[:]
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        nodes = self.make_nodes(80, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
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        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        # Root page, 2 leaf pages
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        self.assertEqual(9339, size)
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    def test_eq_ne(self):
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        # two indices are equal when constructed with the same parameters:
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        t1 = transport.get_transport('trace+' + self.get_url(''))
801
 
        t2 = transport.get_transport(self.get_url(''))
 
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        t1 = transport.get_transport_from_url('trace+' + self.get_url(''))
 
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        t2 = self.get_transport()
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        self.assertTrue(
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            btree_index.BTreeGraphIndex(t1, 'index', None) ==
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            btree_index.BTreeGraphIndex(t1, 'index', None))
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            btree_index.BTreeGraphIndex(t1, 'index', 10) !=
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            btree_index.BTreeGraphIndex(t1, 'index', 20))
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834
    def test_key_too_big(self):
 
835
        # the size that matters here is the _compressed_ size of the key, so we can't
 
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        # do a simple character repeat.
 
837
        bigKey = ''.join(map(repr, xrange(btree_index._PAGE_SIZE)))
 
838
        self.assertRaises(errors.BadIndexKey,
 
839
                          self.make_index,
 
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                          nodes=[((bigKey,), 'value', ())])
 
841
        
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    def test_iter_all_only_root_no_size(self):
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        self.make_index(nodes=[(('key',), 'value', ())])
835
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        index = btree_index.BTreeGraphIndex(t, 'index', None)
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        del t._activity[:]
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        self.assertEqual([(('key',), 'value')],
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        nodes = self.make_nodes(10000, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
852
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
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        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        self.assertEqual(1303220, size, 'number of expected bytes in the'
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                                        ' output changed')
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        nodes = self.make_nodes(160, 2, 2)
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        for node in nodes:
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            builder.add_node(*node)
907
 
        t = transport.get_transport('trace+' + self.get_url(''))
 
916
        t = transport.get_transport_from_url('trace+' + self.get_url(''))
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        size = t.put_file('index', builder.finish())
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        del builder
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        index = btree_index.BTreeGraphIndex(t, 'index', size)
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        for node in nodes:
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            builder.add_node(*node)
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        stream = builder.finish()
1156
 
        trans = transport.get_transport(self.get_url())
 
1165
        trans = self.get_transport()
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        size = trans.put_file('index', stream)
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        index = btree_index.BTreeGraphIndex(trans, 'index', size)
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        self.assertEqual(500, index.key_count())
1185
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1186
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class TestBTreeNodes(BTreeTestCase):
1187
1196
 
 
1197
    scenarios = btreeparser_scenarios()
 
1198
 
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1199
    def setUp(self):
1189
1200
        BTreeTestCase.setUp(self)
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        self.overrideAttr(btree_index, '_btree_serializer', self.parse_btree)
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        BTreeGraphIndex with the recommended information.
1352
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        """
1353
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        index = btree_index.BTreeGraphIndex(
1354
 
            transport.get_transport('memory:///'), 'test-index', size=size)
 
1365
            transport.get_transport_from_url('memory:///'),
 
1366
            'test-index', size=size)
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        if recommended_pages is not None:
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            index._recommended_pages = recommended_pages
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        return index