638 lines
26 KiB
Python
638 lines
26 KiB
Python
# Copyright (c) 2010-2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for swift.common.db"""
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from __future__ import with_statement
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import os
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import unittest
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from shutil import rmtree, copy
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from uuid import uuid4
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import simplejson
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import sqlite3
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from mock import patch
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import swift.common.db
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from swift.common.db import chexor, dict_factory, get_db_connection, \
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DatabaseBroker, DatabaseConnectionError, DatabaseAlreadyExists
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from swift.common.utils import normalize_timestamp
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from swift.common.exceptions import LockTimeout
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class TestDatabaseConnectionError(unittest.TestCase):
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def test_str(self):
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err = \
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DatabaseConnectionError(':memory:', 'No valid database connection')
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self.assert_(':memory:' in str(err))
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self.assert_('No valid database connection' in str(err))
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err = DatabaseConnectionError(':memory:',
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'No valid database connection',
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timeout=1357)
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self.assert_(':memory:' in str(err))
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self.assert_('No valid database connection' in str(err))
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self.assert_('1357' in str(err))
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class TestDictFactory(unittest.TestCase):
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def test_normal_case(self):
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conn = sqlite3.connect(':memory:')
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conn.execute('CREATE TABLE test (one TEXT, two INTEGER)')
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conn.execute('INSERT INTO test (one, two) VALUES ("abc", 123)')
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conn.execute('INSERT INTO test (one, two) VALUES ("def", 456)')
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conn.commit()
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curs = conn.execute('SELECT one, two FROM test')
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self.assertEquals(dict_factory(curs, curs.next()),
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{'one': 'abc', 'two': 123})
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self.assertEquals(dict_factory(curs, curs.next()),
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{'one': 'def', 'two': 456})
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class TestChexor(unittest.TestCase):
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def test_normal_case(self):
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self.assertEquals(
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chexor('d41d8cd98f00b204e9800998ecf8427e',
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'new name', normalize_timestamp(1)),
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'4f2ea31ac14d4273fe32ba08062b21de')
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def test_invalid_old_hash(self):
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self.assertRaises(ValueError, chexor, 'oldhash', 'name',
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normalize_timestamp(1))
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def test_no_name(self):
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self.assertRaises(Exception, chexor,
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'd41d8cd98f00b204e9800998ecf8427e', None,
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normalize_timestamp(1))
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class TestGetDBConnection(unittest.TestCase):
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def test_normal_case(self):
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conn = get_db_connection(':memory:')
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self.assert_(hasattr(conn, 'execute'))
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def test_invalid_path(self):
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self.assertRaises(DatabaseConnectionError, get_db_connection,
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'invalid database path / name')
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class TestDatabaseBroker(unittest.TestCase):
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def setUp(self):
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self.testdir = os.path.join(os.path.dirname(__file__), 'db')
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rmtree(self.testdir, ignore_errors=1)
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os.mkdir(self.testdir)
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def tearDown(self):
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rmtree(self.testdir, ignore_errors=1)
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def test_DB_PREALLOCATION_setting(self):
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u = uuid4().hex
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b = DatabaseBroker(u)
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swift.common.db.DB_PREALLOCATION = False
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b._preallocate()
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swift.common.db.DB_PREALLOCATION = True
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self.assertRaises(OSError, b._preallocate)
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def test_memory_db_init(self):
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broker = DatabaseBroker(':memory:')
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self.assertEqual(broker.db_file, ':memory:')
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self.assertRaises(AttributeError, broker.initialize,
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normalize_timestamp('0'))
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def test_disk_db_init(self):
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db_file = os.path.join(self.testdir, '1.db')
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broker = DatabaseBroker(db_file)
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self.assertEqual(broker.db_file, db_file)
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self.assert_(broker.conn is None)
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def test_disk_preallocate(self):
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test_size = [-1]
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def fallocate_stub(fd, size):
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test_size[0] = size
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with patch('swift.common.db.fallocate', fallocate_stub):
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db_file = os.path.join(self.testdir, 'pre.db')
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# Write 1 byte and hope that the fs will allocate less than 1 MB.
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f = open(db_file, "w")
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f.write('@')
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f.close()
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b = DatabaseBroker(db_file)
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b._preallocate()
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# We only wrote 1 byte, so we should end with the 1st step or 1 MB.
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self.assertEquals(test_size[0], 1024 * 1024)
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def test_initialize(self):
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self.assertRaises(AttributeError,
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DatabaseBroker(':memory:').initialize,
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normalize_timestamp('1'))
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stub_dict = {}
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def stub(*args, **kwargs):
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for key in stub_dict.keys():
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del stub_dict[key]
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stub_dict['args'] = args
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for key, value in kwargs.items():
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stub_dict[key] = value
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broker = DatabaseBroker(':memory:')
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broker._initialize = stub
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broker.initialize(normalize_timestamp('1'))
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self.assert_(hasattr(stub_dict['args'][0], 'execute'))
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self.assertEquals(stub_dict['args'][1], '0000000001.00000')
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with broker.get() as conn:
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conn.execute('SELECT * FROM outgoing_sync')
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conn.execute('SELECT * FROM incoming_sync')
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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broker._initialize = stub
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broker.initialize(normalize_timestamp('1'))
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self.assert_(hasattr(stub_dict['args'][0], 'execute'))
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self.assertEquals(stub_dict['args'][1], '0000000001.00000')
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with broker.get() as conn:
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conn.execute('SELECT * FROM outgoing_sync')
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conn.execute('SELECT * FROM incoming_sync')
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def my_ismount(*a, **kw):
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return True
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with patch('os.path.ismount', my_ismount):
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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broker._initialize = stub
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self.assertRaises(DatabaseAlreadyExists,
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broker.initialize, normalize_timestamp('1'))
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def test_delete_db(self):
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def init_stub(conn, put_timestamp):
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conn.execute('CREATE TABLE test (one TEXT)')
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conn.execute('CREATE TABLE test_stat (id TEXT)')
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conn.execute('INSERT INTO test_stat (id) VALUES (?)',
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(str(uuid4),))
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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conn.commit()
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stub_called = [False]
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def delete_stub(*a, **kw):
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stub_called[0] = True
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broker = DatabaseBroker(':memory:')
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broker.db_type = 'test'
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broker._initialize = init_stub
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# Initializes a good broker for us
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broker.initialize(normalize_timestamp('1'))
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self.assert_(broker.conn is not None)
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broker._delete_db = delete_stub
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stub_called[0] = False
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broker.delete_db('2')
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self.assert_(stub_called[0])
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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broker.db_type = 'test'
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broker._initialize = init_stub
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broker.initialize(normalize_timestamp('1'))
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broker._delete_db = delete_stub
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stub_called[0] = False
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broker.delete_db('2')
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self.assert_(stub_called[0])
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# ensure that metadata was cleared
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m2 = broker.metadata
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self.assert_(not any(v[0] for v in m2.itervalues()))
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self.assert_(all(v[1] == normalize_timestamp('2')
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for v in m2.itervalues()))
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def test_get(self):
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broker = DatabaseBroker(':memory:')
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got_exc = False
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try:
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with broker.get() as conn:
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conn.execute('SELECT 1')
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except Exception:
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got_exc = True
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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got_exc = False
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try:
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with broker.get() as conn:
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conn.execute('SELECT 1')
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except Exception:
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got_exc = True
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self.assert_(got_exc)
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def stub(*args, **kwargs):
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pass
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broker._initialize = stub
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broker.initialize(normalize_timestamp('1'))
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with broker.get() as conn:
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conn.execute('CREATE TABLE test (one TEXT)')
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try:
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with broker.get() as conn:
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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raise Exception('test')
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conn.commit()
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except Exception:
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pass
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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with broker.get() as conn:
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self.assertEquals(
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[r[0] for r in conn.execute('SELECT * FROM test')], [])
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with broker.get() as conn:
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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conn.commit()
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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with broker.get() as conn:
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self.assertEquals(
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[r[0] for r in conn.execute('SELECT * FROM test')], ['1'])
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with patch('swift.common.db.renamer', lambda a, b: b):
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qpath = os.path.dirname(os.path.dirname(os.path.dirname(
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os.path.dirname(self.testdir))))
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if qpath:
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qpath += '/quarantined/tests/db'
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else:
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qpath = 'quarantined/tests/db'
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# Test malformed database
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copy(os.path.join(os.path.dirname(__file__),
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'malformed_example.db'),
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os.path.join(self.testdir, '1.db'))
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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broker.db_type = 'test'
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exc = None
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try:
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with broker.get() as conn:
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conn.execute('SELECT * FROM test')
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except Exception as err:
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exc = err
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self.assertEquals(
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str(exc),
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'Quarantined %s to %s due to malformed database' %
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(self.testdir, qpath))
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# Test corrupted database
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copy(os.path.join(os.path.dirname(__file__),
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'corrupted_example.db'),
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os.path.join(self.testdir, '1.db'))
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'))
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broker.db_type = 'test'
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exc = None
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try:
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with broker.get() as conn:
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conn.execute('SELECT * FROM test')
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except Exception as err:
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exc = err
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self.assertEquals(
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str(exc),
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'Quarantined %s to %s due to corrupted database' %
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(self.testdir, qpath))
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def test_lock(self):
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broker = DatabaseBroker(os.path.join(self.testdir, '1.db'), timeout=.1)
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got_exc = False
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try:
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with broker.lock():
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pass
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except Exception:
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got_exc = True
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self.assert_(got_exc)
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def stub(*args, **kwargs):
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pass
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broker._initialize = stub
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broker.initialize(normalize_timestamp('1'))
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with broker.lock():
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pass
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with broker.lock():
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pass
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broker2 = DatabaseBroker(os.path.join(self.testdir, '1.db'),
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timeout=.1)
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broker2._initialize = stub
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with broker.lock():
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got_exc = False
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try:
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with broker2.lock():
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pass
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except LockTimeout:
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got_exc = True
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self.assert_(got_exc)
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try:
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with broker.lock():
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raise Exception('test')
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except Exception:
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pass
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with broker.lock():
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pass
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def test_newid(self):
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broker = DatabaseBroker(':memory:')
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broker.db_type = 'test'
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broker.db_contains_type = 'test'
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uuid1 = str(uuid4())
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def _initialize(conn, timestamp):
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conn.execute('CREATE TABLE test (one TEXT)')
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conn.execute('CREATE TABLE test_stat (id TEXT)')
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conn.execute('INSERT INTO test_stat (id) VALUES (?)', (uuid1,))
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conn.commit()
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broker._initialize = _initialize
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broker.initialize(normalize_timestamp('1'))
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uuid2 = str(uuid4())
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broker.newid(uuid2)
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with broker.get() as conn:
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uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')]
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self.assertEquals(len(uuids), 1)
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self.assertNotEquals(uuids[0], uuid1)
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uuid1 = uuids[0]
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points = [(r[0], r[1]) for r in conn.execute(
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'SELECT sync_point, '
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'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid2,))]
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self.assertEquals(len(points), 1)
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self.assertEquals(points[0][0], -1)
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self.assertEquals(points[0][1], uuid2)
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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conn.commit()
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uuid3 = str(uuid4())
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broker.newid(uuid3)
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with broker.get() as conn:
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uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')]
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self.assertEquals(len(uuids), 1)
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self.assertNotEquals(uuids[0], uuid1)
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uuid1 = uuids[0]
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points = [(r[0], r[1]) for r in conn.execute(
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'SELECT sync_point, '
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'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid3,))]
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self.assertEquals(len(points), 1)
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self.assertEquals(points[0][1], uuid3)
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broker.newid(uuid2)
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with broker.get() as conn:
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uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')]
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self.assertEquals(len(uuids), 1)
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self.assertNotEquals(uuids[0], uuid1)
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points = [(r[0], r[1]) for r in conn.execute(
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'SELECT sync_point, '
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'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid2,))]
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self.assertEquals(len(points), 1)
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self.assertEquals(points[0][1], uuid2)
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def test_get_items_since(self):
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broker = DatabaseBroker(':memory:')
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broker.db_type = 'test'
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broker.db_contains_type = 'test'
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def _initialize(conn, timestamp):
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conn.execute('CREATE TABLE test (one TEXT)')
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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conn.execute('INSERT INTO test (one) VALUES ("2")')
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conn.execute('INSERT INTO test (one) VALUES ("3")')
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conn.commit()
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broker._initialize = _initialize
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broker.initialize(normalize_timestamp('1'))
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self.assertEquals(broker.get_items_since(-1, 10),
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[{'one': '1'}, {'one': '2'}, {'one': '3'}])
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self.assertEquals(broker.get_items_since(-1, 2),
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[{'one': '1'}, {'one': '2'}])
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self.assertEquals(broker.get_items_since(1, 2),
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[{'one': '2'}, {'one': '3'}])
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self.assertEquals(broker.get_items_since(3, 2), [])
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self.assertEquals(broker.get_items_since(999, 2), [])
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def test_get_sync(self):
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broker = DatabaseBroker(':memory:')
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broker.db_type = 'test'
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broker.db_contains_type = 'test'
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uuid1 = str(uuid4())
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def _initialize(conn, timestamp):
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conn.execute('CREATE TABLE test (one TEXT)')
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conn.execute('CREATE TABLE test_stat (id TEXT)')
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conn.execute('INSERT INTO test_stat (id) VALUES (?)', (uuid1,))
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conn.execute('INSERT INTO test (one) VALUES ("1")')
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conn.commit()
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pass
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broker._initialize = _initialize
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broker.initialize(normalize_timestamp('1'))
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uuid2 = str(uuid4())
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self.assertEquals(broker.get_sync(uuid2), -1)
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broker.newid(uuid2)
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self.assertEquals(broker.get_sync(uuid2), 1)
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uuid3 = str(uuid4())
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self.assertEquals(broker.get_sync(uuid3), -1)
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with broker.get() as conn:
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conn.execute('INSERT INTO test (one) VALUES ("2")')
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conn.commit()
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broker.newid(uuid3)
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self.assertEquals(broker.get_sync(uuid2), 1)
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self.assertEquals(broker.get_sync(uuid3), 2)
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self.assertEquals(broker.get_sync(uuid2, incoming=False), -1)
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self.assertEquals(broker.get_sync(uuid3, incoming=False), -1)
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broker.merge_syncs([{'sync_point': 1, 'remote_id': uuid2}],
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incoming=False)
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self.assertEquals(broker.get_sync(uuid2), 1)
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self.assertEquals(broker.get_sync(uuid3), 2)
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self.assertEquals(broker.get_sync(uuid2, incoming=False), 1)
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self.assertEquals(broker.get_sync(uuid3, incoming=False), -1)
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broker.merge_syncs([{'sync_point': 2, 'remote_id': uuid3}],
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incoming=False)
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self.assertEquals(broker.get_sync(uuid2, incoming=False), 1)
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self.assertEquals(broker.get_sync(uuid3, incoming=False), 2)
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def test_merge_syncs(self):
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broker = DatabaseBroker(':memory:')
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def stub(*args, **kwargs):
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pass
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broker._initialize = stub
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broker.initialize(normalize_timestamp('1'))
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uuid2 = str(uuid4())
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broker.merge_syncs([{'sync_point': 1, 'remote_id': uuid2}])
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self.assertEquals(broker.get_sync(uuid2), 1)
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uuid3 = str(uuid4())
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broker.merge_syncs([{'sync_point': 2, 'remote_id': uuid3}])
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self.assertEquals(broker.get_sync(uuid2), 1)
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self.assertEquals(broker.get_sync(uuid3), 2)
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self.assertEquals(broker.get_sync(uuid2, incoming=False), -1)
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self.assertEquals(broker.get_sync(uuid3, incoming=False), -1)
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broker.merge_syncs([{'sync_point': 3, 'remote_id': uuid2},
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{'sync_point': 4, 'remote_id': uuid3}],
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incoming=False)
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self.assertEquals(broker.get_sync(uuid2, incoming=False), 3)
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self.assertEquals(broker.get_sync(uuid3, incoming=False), 4)
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self.assertEquals(broker.get_sync(uuid2), 1)
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self.assertEquals(broker.get_sync(uuid3), 2)
|
|
broker.merge_syncs([{'sync_point': 5, 'remote_id': uuid2}])
|
|
self.assertEquals(broker.get_sync(uuid2), 5)
|
|
|
|
def test_get_replication_info(self):
|
|
self.get_replication_info_tester(metadata=False)
|
|
|
|
def test_get_replication_info_with_metadata(self):
|
|
self.get_replication_info_tester(metadata=True)
|
|
|
|
def get_replication_info_tester(self, metadata=False):
|
|
broker = DatabaseBroker(':memory:', account='a')
|
|
broker.db_type = 'test'
|
|
broker.db_contains_type = 'test'
|
|
broker_creation = normalize_timestamp(1)
|
|
broker_uuid = str(uuid4())
|
|
broker_metadata = metadata and simplejson.dumps(
|
|
{'Test': ('Value', normalize_timestamp(1))}) or ''
|
|
|
|
def _initialize(conn, put_timestamp):
|
|
if put_timestamp is None:
|
|
put_timestamp = normalize_timestamp(0)
|
|
conn.executescript('''
|
|
CREATE TABLE test (
|
|
ROWID INTEGER PRIMARY KEY AUTOINCREMENT,
|
|
name TEXT UNIQUE,
|
|
created_at TEXT
|
|
);
|
|
CREATE TRIGGER test_insert AFTER INSERT ON test
|
|
BEGIN
|
|
UPDATE test_stat
|
|
SET test_count = test_count + 1,
|
|
hash = chexor(hash, new.name, new.created_at);
|
|
END;
|
|
CREATE TRIGGER test_update BEFORE UPDATE ON test
|
|
BEGIN
|
|
SELECT RAISE(FAIL,
|
|
'UPDATE not allowed; DELETE and INSERT');
|
|
END;
|
|
CREATE TRIGGER test_delete AFTER DELETE ON test
|
|
BEGIN
|
|
UPDATE test_stat
|
|
SET test_count = test_count - 1,
|
|
hash = chexor(hash, old.name, old.created_at);
|
|
END;
|
|
CREATE TABLE test_stat (
|
|
account TEXT,
|
|
created_at TEXT,
|
|
put_timestamp TEXT DEFAULT '0',
|
|
delete_timestamp TEXT DEFAULT '0',
|
|
test_count INTEGER,
|
|
hash TEXT default '00000000000000000000000000000000',
|
|
id TEXT
|
|
%s
|
|
);
|
|
INSERT INTO test_stat (test_count) VALUES (0);
|
|
''' % (metadata and ", metadata TEXT DEFAULT ''" or ""))
|
|
conn.execute('''
|
|
UPDATE test_stat
|
|
SET account = ?, created_at = ?, id = ?, put_timestamp = ?
|
|
''', (broker.account, broker_creation, broker_uuid, put_timestamp))
|
|
if metadata:
|
|
conn.execute('UPDATE test_stat SET metadata = ?',
|
|
(broker_metadata,))
|
|
conn.commit()
|
|
broker._initialize = _initialize
|
|
put_timestamp = normalize_timestamp(2)
|
|
broker.initialize(put_timestamp)
|
|
info = broker.get_replication_info()
|
|
self.assertEquals(info, {
|
|
'count': 0,
|
|
'hash': '00000000000000000000000000000000',
|
|
'created_at': broker_creation, 'put_timestamp': put_timestamp,
|
|
'delete_timestamp': '0', 'max_row': -1, 'id': broker_uuid,
|
|
'metadata': broker_metadata})
|
|
insert_timestamp = normalize_timestamp(3)
|
|
with broker.get() as conn:
|
|
conn.execute('''
|
|
INSERT INTO test (name, created_at) VALUES ('test', ?)
|
|
''', (insert_timestamp,))
|
|
conn.commit()
|
|
info = broker.get_replication_info()
|
|
self.assertEquals(info, {
|
|
'count': 1,
|
|
'hash': 'bdc4c93f574b0d8c2911a27ce9dd38ba',
|
|
'created_at': broker_creation, 'put_timestamp': put_timestamp,
|
|
'delete_timestamp': '0', 'max_row': 1, 'id': broker_uuid,
|
|
'metadata': broker_metadata})
|
|
with broker.get() as conn:
|
|
conn.execute('DELETE FROM test')
|
|
conn.commit()
|
|
info = broker.get_replication_info()
|
|
self.assertEquals(info, {
|
|
'count': 0,
|
|
'hash': '00000000000000000000000000000000',
|
|
'created_at': broker_creation, 'put_timestamp': put_timestamp,
|
|
'delete_timestamp': '0', 'max_row': 1, 'id': broker_uuid,
|
|
'metadata': broker_metadata})
|
|
return broker
|
|
|
|
def test_metadata(self):
|
|
def reclaim(broker, timestamp):
|
|
with broker.get() as conn:
|
|
broker._reclaim(conn, timestamp)
|
|
conn.commit()
|
|
# Initializes a good broker for us
|
|
broker = self.get_replication_info_tester(metadata=True)
|
|
# Add our first item
|
|
first_timestamp = normalize_timestamp(1)
|
|
first_value = '1'
|
|
broker.update_metadata({'First': [first_value, first_timestamp]})
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
# Add our second item
|
|
second_timestamp = normalize_timestamp(2)
|
|
second_value = '2'
|
|
broker.update_metadata({'Second': [second_value, second_timestamp]})
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' in broker.metadata)
|
|
self.assertEquals(broker.metadata['Second'],
|
|
[second_value, second_timestamp])
|
|
# Update our first item
|
|
first_timestamp = normalize_timestamp(3)
|
|
first_value = '1b'
|
|
broker.update_metadata({'First': [first_value, first_timestamp]})
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' in broker.metadata)
|
|
self.assertEquals(broker.metadata['Second'],
|
|
[second_value, second_timestamp])
|
|
# Delete our second item (by setting to empty string)
|
|
second_timestamp = normalize_timestamp(4)
|
|
second_value = ''
|
|
broker.update_metadata({'Second': [second_value, second_timestamp]})
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' in broker.metadata)
|
|
self.assertEquals(broker.metadata['Second'],
|
|
[second_value, second_timestamp])
|
|
# Reclaim at point before second item was deleted
|
|
reclaim(broker, normalize_timestamp(3))
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' in broker.metadata)
|
|
self.assertEquals(broker.metadata['Second'],
|
|
[second_value, second_timestamp])
|
|
# Reclaim at point second item was deleted
|
|
reclaim(broker, normalize_timestamp(4))
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' in broker.metadata)
|
|
self.assertEquals(broker.metadata['Second'],
|
|
[second_value, second_timestamp])
|
|
# Reclaim after point second item was deleted
|
|
reclaim(broker, normalize_timestamp(5))
|
|
self.assert_('First' in broker.metadata)
|
|
self.assertEquals(broker.metadata['First'],
|
|
[first_value, first_timestamp])
|
|
self.assert_('Second' not in broker.metadata)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|