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Viewing changes to bzrlib/tests/test_transactions.py

  • Committer: Martin Pool
  • Date: 2006-03-09 07:14:10 UTC
  • mfrom: (1600 +trunk)
  • mto: This revision was merged to the branch mainline in revision 1602.
  • Revision ID: mbp@sourcefrog.net-20060309071410-4ab7d54905541c75
[merge] from bzr.dev

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bzrlib/tests/test_transactions.py
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        self.assertRaises(errors.ReadOnlyError, 
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                          self.transaction.register_dirty,"anobject")
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    def test_commit_raises(self):
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        self.assertRaises(errors.CommitNotPossible, self.transaction.commit)
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    def test_map(self):
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        self.assertNotEqual(None, getattr(self.transaction, "map", None))
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        self.transaction.map.add_weave("id", weave)
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
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    def test_rollback_returns(self):
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        self.transaction.rollback()
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    def test_finish_returns(self):
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        self.transaction.finish()
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        transaction = transactions.PassThroughTransaction()
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        transaction.register_dirty("anobject")
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    def test_commit_nothing_returns(self):
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        transaction = transactions.PassThroughTransaction()
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        transaction.commit()
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    def test_map(self):
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        transaction = transactions.PassThroughTransaction()
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        self.assertNotEqual(None, getattr(transaction, "map", None))
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        transaction.map.add_weave("id", weave)
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        self.assertEqual(None, transaction.map.find_weave("id"))
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    def test_rollback_asserts(self):
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        transaction = transactions.PassThroughTransaction()
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        self.assertRaises(errors.AlreadyCommitted, transaction.rollback)
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    def test_finish_returns(self):
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        transaction = transactions.PassThroughTransaction()
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        transaction.finish()
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        weave = "a weave"
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        transaction.map.add_weave("id", weave)
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        self.assertEqual(None, transaction.map.find_weave("id"))
 
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class TestWriteTransaction(TestCase):
 
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    def setUp(self):
 
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        self.transaction = transactions.WriteTransaction()
 
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        super(TestWriteTransaction, self).setUp()
 
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    def test_register_clean(self):
 
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        self.transaction.register_clean("anobject")
 
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    def test_register_dirty(self):
 
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        self.transaction.register_dirty("anobject")
 
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    def test_map(self):
 
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        self.assertNotEqual(None, getattr(self.transaction, "map", None))
 
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    def test_add_and_get(self):
 
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        weave = "a weave"
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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    def test_finish_returns(self):
 
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        self.transaction.finish()
 
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    def test_zero_size_cache(self):
 
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        self.transaction.set_cache_size(0)
 
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        # add an object, should fall right out if there are no references
 
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        weave = DummyWeave('a weave')
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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        weave = None
 
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        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
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        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
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        # but if we have a reference to a clean object it should stick around
 
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        weave = DummyWeave("another weave")
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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        del weave
 
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        # its not a weakref system
 
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        self.assertEqual(DummyWeave("another weave"),
 
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                         self.transaction.map.find_weave("id"))
 
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    def test_zero_size_cache_dirty_objects(self):
 
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        self.transaction.set_cache_size(0)
 
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        # add a dirty object, which should not fall right out.
 
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        weave = DummyWeave('a weave')
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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        weave = None
 
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        self.transaction.register_dirty(self.transaction.map.find_weave("id"))
 
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        self.assertNotEqual(None, self.transaction.map.find_weave("id"))
 
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    def test_clean_to_dirty(self):
 
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        # a clean object may become dirty.
 
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        weave = DummyWeave('A weave')
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.transaction.register_clean(weave)
 
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        self.transaction.register_dirty(weave)
 
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        self.assertTrue(self.transaction.is_dirty(weave))
 
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        self.assertFalse(self.transaction.is_clean(weave))
 
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    def test_small_cache(self):
 
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        self.transaction.set_cache_size(1)
 
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        # add an object, should not fall right out if there are no references
 
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        #sys.getrefcounts(foo)
 
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        self.transaction.map.add_weave("id", DummyWeave("a weave"))
 
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        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
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        self.assertEqual(DummyWeave("a weave"),
 
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                         self.transaction.map.find_weave("id"))
 
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        self.transaction.map.add_weave("id2", DummyWeave("a weave also"))
 
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        self.transaction.register_clean(self.transaction.map.find_weave("id2"))
 
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        # currently a fifo
 
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        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
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        self.assertEqual(DummyWeave("a weave also"),
 
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                         self.transaction.map.find_weave("id2"))
 
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    def test_small_cache_with_references(self):
 
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        # if we have a reference it should stick around
 
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        weave = "a weave"
 
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        weave2 = "another weave"
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.transaction.map.add_weave("id2", weave2)
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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        self.assertEqual(weave2, self.transaction.map.find_weave("id2"))
 
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        weave = None
 
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        # its not a weakref system
 
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        self.assertEqual("a weave", self.transaction.map.find_weave("id"))
 
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    def test_precious_with_zero_size_cache(self):
 
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        self.transaction.set_cache_size(0)
 
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        weave = DummyWeave('a weave')
 
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        self.transaction.map.add_weave("id", weave)
 
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
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        weave = None
 
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        # add an object, should not fall out even with no references.
 
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        self.transaction.register_clean(self.transaction.map.find_weave("id"),
 
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                                        precious=True)
 
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        self.assertEqual(DummyWeave('a weave'),
 
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                         self.transaction.map.find_weave("id"))