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Viewing changes to bzrlib/tests/test__chk_map.py

  • Committer: John Arbash Meinel
  • Date: 2010-02-17 17:11:16 UTC
  • mfrom: (4797.2.17 2.1)
  • mto: (4797.2.18 2.1)
  • mto: This revision was merged to the branch mainline in revision 5055.
  • Revision ID: john@arbash-meinel.com-20100217171116-h7t9223ystbnx5h8
merge bzr.2.1 in preparation for NEWS entry.

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bzrlib/tests/test__chk_map.py
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# Copyright (C) 2009 Canonical Ltd
 
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# Copyright (C) 2009, 2010 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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    chk_map,
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    tests,
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    )
 
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from bzrlib.static_tuple import StaticTuple
 
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stuple = StaticTuple
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def load_tests(standard_tests, module, loader):
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    # parameterize all tests in this module
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    suite = loader.suiteClass()
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    import bzrlib._chk_map_py as py_module
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    scenarios = [('python', {'module': py_module})]
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    if CompiledChkMapFeature.available():
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        import bzrlib._chk_map_pyx as c_module
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        scenarios.append(('C', {'module': c_module}))
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    else:
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        # the compiled module isn't available, so we add a failing test
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        class FailWithoutFeature(tests.TestCase):
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            def test_fail(self):
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                self.requireFeature(CompiledChkMapFeature)
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        suite.addTest(loader.loadTestsFromTestCase(FailWithoutFeature))
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    tests.multiply_tests(standard_tests, scenarios, suite)
 
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    suite, _ = tests.permute_tests_for_extension(standard_tests, loader,
 
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        'bzrlib._chk_map_py', 'bzrlib._chk_map_pyx')
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    return suite
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class _CompiledChkMapFeature(tests.Feature):
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    def _probe(self):
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        try:
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            import bzrlib._chk_map_pyx
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        except ImportError:
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            return False
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        return True
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    def feature_name(self):
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        return 'bzrlib._chk_map_pyx'
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CompiledChkMapFeature = _CompiledChkMapFeature()
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class TestSearchKeys(tests.TestCase):
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    module = None # Filled in by test parameterization
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        self.assertEqual(expected, actual, 'actual: %r' % (actual,))
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    def test_simple_16(self):
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        self.assertSearchKey16('8C736521', ('foo',))
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        self.assertSearchKey16('8C736521\x008C736521', ('foo', 'foo'))
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        self.assertSearchKey16('8C736521\x0076FF8CAA', ('foo', 'bar'))
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        self.assertSearchKey16('ED82CD11', ('abcd',))
 
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        self.assertSearchKey16('8C736521', stuple('foo',))
 
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        self.assertSearchKey16('8C736521\x008C736521', stuple('foo', 'foo'))
 
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        self.assertSearchKey16('8C736521\x0076FF8CAA', stuple('foo', 'bar'))
 
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        self.assertSearchKey16('ED82CD11', stuple('abcd',))
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    def test_simple_255(self):
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        self.assertSearchKey255('\x8cse!', ('foo',))
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        self.assertSearchKey255('\x8cse!\x00\x8cse!', ('foo', 'foo'))
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        self.assertSearchKey255('\x8cse!\x00v\xff\x8c\xaa', ('foo', 'bar'))
 
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        self.assertSearchKey255('\x8cse!', stuple('foo',))
 
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        self.assertSearchKey255('\x8cse!\x00\x8cse!', stuple('foo', 'foo'))
 
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        self.assertSearchKey255('\x8cse!\x00v\xff\x8c\xaa', stuple('foo', 'bar'))
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        # The standard mapping for these would include '\n', so it should be
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        # mapped to '_'
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        self.assertSearchKey255('\xfdm\x93_\x00P_\x1bL', ('<', 'V'))
 
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        self.assertSearchKey255('\xfdm\x93_\x00P_\x1bL', stuple('<', 'V'))
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    def test_255_does_not_include_newline(self):
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        # When mapping via _search_key_255, we should never have the '\n'
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        # character, but all other 255 values should be present
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        chars_used = set()
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        for char_in in range(256):
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            search_key = self.module._search_key_255((chr(char_in),))
 
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            search_key = self.module._search_key_255(stuple(chr(char_in),))
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            chars_used.update(search_key)
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        all_chars = set([chr(x) for x in range(256)])
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        unused_chars = all_chars.symmetric_difference(chars_used)
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    def test_deserialise_empty(self):
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        node = self.module._deserialise_leaf_node(
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            "chkleaf:\n10\n1\n0\n\n", ("sha1:1234",))
 
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            "chkleaf:\n10\n1\n0\n\n", stuple("sha1:1234",))
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        self.assertEqual(0, len(node))
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        self.assertEqual(10, node.maximum_size)
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        self.assertEqual(("sha1:1234",), node.key())
 
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        self.assertIsInstance(node.key(), StaticTuple)
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        self.assertIs(None, node._search_prefix)
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        self.assertIs(None, node._common_serialised_prefix)
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    def assertDeserialiseErrors(self, text):
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        self.assertRaises((ValueError, IndexError),
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            self.module._deserialise_internal_node, text, 'not-a-real-sha')
 
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            self.module._deserialise_internal_node, text,
 
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                stuple('not-a-real-sha',))
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    def test_raises_on_non_internal(self):
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        self.assertDeserialiseErrors('')
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    def test_deserialise_one(self):
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        node = self.module._deserialise_internal_node(
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            "chknode:\n10\n1\n1\n\na\x00sha1:abcd\n", ('sha1:1234',))
 
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            "chknode:\n10\n1\n1\n\na\x00sha1:abcd\n", stuple('sha1:1234',))
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        self.assertIsInstance(node, chk_map.InternalNode)
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        self.assertEqual(1, len(node))
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        self.assertEqual(10, node.maximum_size)
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    def test_deserialise_with_prefix(self):
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        node = self.module._deserialise_internal_node(
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            "chknode:\n10\n1\n1\npref\na\x00sha1:abcd\n", ('sha1:1234',))
 
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            "chknode:\n10\n1\n1\npref\na\x00sha1:abcd\n", stuple('sha1:1234',))
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        self.assertIsInstance(node, chk_map.InternalNode)
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        self.assertEqual(1, len(node))
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        self.assertEqual(10, node.maximum_size)
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        self.assertEqual({'prefa': ('sha1:abcd',)}, node._items)
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        node = self.module._deserialise_internal_node(
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            "chknode:\n10\n1\n1\npref\n\x00sha1:abcd\n", ('sha1:1234',))
 
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            "chknode:\n10\n1\n1\npref\n\x00sha1:abcd\n", stuple('sha1:1234',))
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        self.assertIsInstance(node, chk_map.InternalNode)
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        self.assertEqual(1, len(node))
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        self.assertEqual(10, node.maximum_size)
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    def test_deserialise_pref_with_null(self):
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        node = self.module._deserialise_internal_node(
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            "chknode:\n10\n1\n1\npref\x00fo\n\x00sha1:abcd\n", ('sha1:1234',))
 
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            "chknode:\n10\n1\n1\npref\x00fo\n\x00sha1:abcd\n",
 
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            stuple('sha1:1234',))
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        self.assertIsInstance(node, chk_map.InternalNode)
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        self.assertEqual(1, len(node))
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        self.assertEqual(10, node.maximum_size)
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    def test_deserialise_with_null_pref(self):
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        node = self.module._deserialise_internal_node(
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            "chknode:\n10\n1\n1\npref\x00fo\n\x00\x00sha1:abcd\n", ('sha1:1234',))
 
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            "chknode:\n10\n1\n1\npref\x00fo\n\x00\x00sha1:abcd\n",
 
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            stuple('sha1:1234',))
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        self.assertIsInstance(node, chk_map.InternalNode)
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        self.assertEqual(1, len(node))
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        self.assertEqual(10, node.maximum_size)