# Copyright (c) 2010-2012 OpenStack Foundation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. """Tests for swift.common.db""" import os import unittest from shutil import rmtree, copy from uuid import uuid4 import simplejson import sqlite3 from mock import patch, MagicMock from eventlet.timeout import Timeout import swift.common.db from swift.common.db import chexor, dict_factory, get_db_connection, \ DatabaseBroker, DatabaseConnectionError, DatabaseAlreadyExists, \ GreenDBConnection from swift.common.utils import normalize_timestamp from swift.common.exceptions import LockTimeout class TestDatabaseConnectionError(unittest.TestCase): def test_str(self): err = \ DatabaseConnectionError(':memory:', 'No valid database connection') self.assert_(':memory:' in str(err)) self.assert_('No valid database connection' in str(err)) err = DatabaseConnectionError(':memory:', 'No valid database connection', timeout=1357) self.assert_(':memory:' in str(err)) self.assert_('No valid database connection' in str(err)) self.assert_('1357' in str(err)) class TestDictFactory(unittest.TestCase): def test_normal_case(self): conn = sqlite3.connect(':memory:') conn.execute('CREATE TABLE test (one TEXT, two INTEGER)') conn.execute('INSERT INTO test (one, two) VALUES ("abc", 123)') conn.execute('INSERT INTO test (one, two) VALUES ("def", 456)') conn.commit() curs = conn.execute('SELECT one, two FROM test') self.assertEquals(dict_factory(curs, curs.next()), {'one': 'abc', 'two': 123}) self.assertEquals(dict_factory(curs, curs.next()), {'one': 'def', 'two': 456}) class TestChexor(unittest.TestCase): def test_normal_case(self): self.assertEquals( chexor('d41d8cd98f00b204e9800998ecf8427e', 'new name', normalize_timestamp(1)), '4f2ea31ac14d4273fe32ba08062b21de') def test_invalid_old_hash(self): self.assertRaises(ValueError, chexor, 'oldhash', 'name', normalize_timestamp(1)) def test_no_name(self): self.assertRaises(Exception, chexor, 'd41d8cd98f00b204e9800998ecf8427e', None, normalize_timestamp(1)) class TestGreenDBConnection(unittest.TestCase): def test_execute_when_locked(self): # This test is dependant on the code under test calling execute and # commit as sqlite3.Cursor.execute in a subclass. class InterceptCursor(sqlite3.Cursor): pass db_error = sqlite3.OperationalError('database is locked') InterceptCursor.execute = MagicMock(side_effect=db_error) with patch('sqlite3.Cursor', new=InterceptCursor): conn = sqlite3.connect(':memory:', check_same_thread=False, factory=GreenDBConnection, timeout=0.1) self.assertRaises(Timeout, conn.execute, 'select 1') self.assertTrue(InterceptCursor.execute.called) self.assertEqual(InterceptCursor.execute.call_args_list, list((InterceptCursor.execute.call_args,) * InterceptCursor.execute.call_count)) def text_commit_when_locked(self): # This test is dependant on the code under test calling commit and # commit as sqlite3.Connection.commit in a subclass. class InterceptConnection(sqlite3.Connection): pass db_error = sqlite3.OperationalError('database is locked') InterceptConnection.commit = MagicMock(side_effect=db_error) with patch('sqlite3.Connection', new=InterceptConnection): conn = sqlite3.connect(':memory:', check_same_thread=False, factory=GreenDBConnection, timeout=0.1) self.assertRaises(Timeout, conn.commit) self.assertTrue(InterceptConnection.commit.called) self.assertEqual(InterceptConnection.commit.call_args_list, list((InterceptConnection.commit.call_args,) * InterceptConnection.commit.call_count)) class TestGetDBConnection(unittest.TestCase): def test_normal_case(self): conn = get_db_connection(':memory:') self.assert_(hasattr(conn, 'execute')) def test_invalid_path(self): self.assertRaises(DatabaseConnectionError, get_db_connection, 'invalid database path / name') def test_locked_db(self): # This test is dependant on the code under test calling execute and # commit as sqlite3.Cursor.execute in a subclass. class InterceptCursor(sqlite3.Cursor): pass db_error = sqlite3.OperationalError('database is locked') mock_db_cmd = MagicMock(side_effect=db_error) InterceptCursor.execute = mock_db_cmd with patch('sqlite3.Cursor', new=InterceptCursor): self.assertRaises(Timeout, get_db_connection, ':memory:', timeout=0.1) self.assertTrue(mock_db_cmd.called) self.assertEqual(mock_db_cmd.call_args_list, list((mock_db_cmd.call_args,) * mock_db_cmd.call_count)) class TestDatabaseBroker(unittest.TestCase): def setUp(self): self.testdir = os.path.join(os.path.dirname(__file__), 'db') rmtree(self.testdir, ignore_errors=1) os.mkdir(self.testdir) def tearDown(self): rmtree(self.testdir, ignore_errors=1) def test_DB_PREALLOCATION_setting(self): u = uuid4().hex b = DatabaseBroker(u) swift.common.db.DB_PREALLOCATION = False b._preallocate() swift.common.db.DB_PREALLOCATION = True self.assertRaises(OSError, b._preallocate) def test_memory_db_init(self): broker = DatabaseBroker(':memory:') self.assertEqual(broker.db_file, ':memory:') self.assertRaises(AttributeError, broker.initialize, normalize_timestamp('0')) def test_disk_db_init(self): db_file = os.path.join(self.testdir, '1.db') broker = DatabaseBroker(db_file) self.assertEqual(broker.db_file, db_file) self.assert_(broker.conn is None) def test_disk_preallocate(self): test_size = [-1] def fallocate_stub(fd, size): test_size[0] = size with patch('swift.common.db.fallocate', fallocate_stub): db_file = os.path.join(self.testdir, 'pre.db') # Write 1 byte and hope that the fs will allocate less than 1 MB. f = open(db_file, "w") f.write('@') f.close() b = DatabaseBroker(db_file) b._preallocate() # We only wrote 1 byte, so we should end with the 1st step or 1 MB. self.assertEquals(test_size[0], 1024 * 1024) def test_initialize(self): self.assertRaises(AttributeError, DatabaseBroker(':memory:').initialize, normalize_timestamp('1')) stub_dict = {} def stub(*args, **kwargs): for key in stub_dict.keys(): del stub_dict[key] stub_dict['args'] = args for key, value in kwargs.items(): stub_dict[key] = value broker = DatabaseBroker(':memory:') broker._initialize = stub broker.initialize(normalize_timestamp('1')) self.assert_(hasattr(stub_dict['args'][0], 'execute')) self.assertEquals(stub_dict['args'][1], '0000000001.00000') with broker.get() as conn: conn.execute('SELECT * FROM outgoing_sync') conn.execute('SELECT * FROM incoming_sync') broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) broker._initialize = stub broker.initialize(normalize_timestamp('1')) self.assert_(hasattr(stub_dict['args'][0], 'execute')) self.assertEquals(stub_dict['args'][1], '0000000001.00000') with broker.get() as conn: conn.execute('SELECT * FROM outgoing_sync') conn.execute('SELECT * FROM incoming_sync') broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) broker._initialize = stub self.assertRaises(DatabaseAlreadyExists, broker.initialize, normalize_timestamp('1')) def test_delete_db(self): def init_stub(conn, put_timestamp): conn.execute('CREATE TABLE test (one TEXT)') conn.execute('CREATE TABLE test_stat (id TEXT)') conn.execute('INSERT INTO test_stat (id) VALUES (?)', (str(uuid4),)) conn.execute('INSERT INTO test (one) VALUES ("1")') conn.commit() stub_called = [False] def delete_stub(*a, **kw): stub_called[0] = True broker = DatabaseBroker(':memory:') broker.db_type = 'test' broker._initialize = init_stub # Initializes a good broker for us broker.initialize(normalize_timestamp('1')) self.assert_(broker.conn is not None) broker._delete_db = delete_stub stub_called[0] = False broker.delete_db('2') self.assert_(stub_called[0]) broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) broker.db_type = 'test' broker._initialize = init_stub broker.initialize(normalize_timestamp('1')) broker._delete_db = delete_stub stub_called[0] = False broker.delete_db('2') self.assert_(stub_called[0]) # ensure that metadata was cleared m2 = broker.metadata self.assert_(not any(v[0] for v in m2.itervalues())) self.assert_(all(v[1] == normalize_timestamp('2') for v in m2.itervalues())) def test_get(self): broker = DatabaseBroker(':memory:') got_exc = False try: with broker.get() as conn: conn.execute('SELECT 1') except Exception: got_exc = True broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) got_exc = False try: with broker.get() as conn: conn.execute('SELECT 1') except Exception: got_exc = True self.assert_(got_exc) def stub(*args, **kwargs): pass broker._initialize = stub broker.initialize(normalize_timestamp('1')) with broker.get() as conn: conn.execute('CREATE TABLE test (one TEXT)') try: with broker.get() as conn: conn.execute('INSERT INTO test (one) VALUES ("1")') raise Exception('test') conn.commit() except Exception: pass broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) with broker.get() as conn: self.assertEquals( [r[0] for r in conn.execute('SELECT * FROM test')], []) with broker.get() as conn: conn.execute('INSERT INTO test (one) VALUES ("1")') conn.commit() broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) with broker.get() as conn: self.assertEquals( [r[0] for r in conn.execute('SELECT * FROM test')], ['1']) with patch('swift.common.db.renamer', lambda a, b: b): qpath = os.path.dirname(os.path.dirname(os.path.dirname( os.path.dirname(self.testdir)))) if qpath: qpath += '/quarantined/tests/db' else: qpath = 'quarantined/tests/db' # Test malformed database copy(os.path.join(os.path.dirname(__file__), 'malformed_example.db'), os.path.join(self.testdir, '1.db')) broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) broker.db_type = 'test' exc = None try: with broker.get() as conn: conn.execute('SELECT * FROM test') except Exception as err: exc = err self.assertEquals( str(exc), 'Quarantined %s to %s due to malformed database' % (self.testdir, qpath)) # Test corrupted database copy(os.path.join(os.path.dirname(__file__), 'corrupted_example.db'), os.path.join(self.testdir, '1.db')) broker = DatabaseBroker(os.path.join(self.testdir, '1.db')) broker.db_type = 'test' exc = None try: with broker.get() as conn: conn.execute('SELECT * FROM test') except Exception as err: exc = err self.assertEquals( str(exc), 'Quarantined %s to %s due to corrupted database' % (self.testdir, qpath)) def test_lock(self): broker = DatabaseBroker(os.path.join(self.testdir, '1.db'), timeout=.1) got_exc = False try: with broker.lock(): pass except Exception: got_exc = True self.assert_(got_exc) def stub(*args, **kwargs): pass broker._initialize = stub broker.initialize(normalize_timestamp('1')) with broker.lock(): pass with broker.lock(): pass broker2 = DatabaseBroker(os.path.join(self.testdir, '1.db'), timeout=.1) broker2._initialize = stub with broker.lock(): got_exc = False try: with broker2.lock(): pass except LockTimeout: got_exc = True self.assert_(got_exc) try: with broker.lock(): raise Exception('test') except Exception: pass with broker.lock(): pass def test_newid(self): broker = DatabaseBroker(':memory:') broker.db_type = 'test' broker.db_contains_type = 'test' uuid1 = str(uuid4()) def _initialize(conn, timestamp): conn.execute('CREATE TABLE test (one TEXT)') conn.execute('CREATE TABLE test_stat (id TEXT)') conn.execute('INSERT INTO test_stat (id) VALUES (?)', (uuid1,)) conn.commit() broker._initialize = _initialize broker.initialize(normalize_timestamp('1')) uuid2 = str(uuid4()) broker.newid(uuid2) with broker.get() as conn: uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')] self.assertEquals(len(uuids), 1) self.assertNotEquals(uuids[0], uuid1) uuid1 = uuids[0] points = [(r[0], r[1]) for r in conn.execute( 'SELECT sync_point, ' 'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid2,))] self.assertEquals(len(points), 1) self.assertEquals(points[0][0], -1) self.assertEquals(points[0][1], uuid2) conn.execute('INSERT INTO test (one) VALUES ("1")') conn.commit() uuid3 = str(uuid4()) broker.newid(uuid3) with broker.get() as conn: uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')] self.assertEquals(len(uuids), 1) self.assertNotEquals(uuids[0], uuid1) uuid1 = uuids[0] points = [(r[0], r[1]) for r in conn.execute( 'SELECT sync_point, ' 'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid3,))] self.assertEquals(len(points), 1) self.assertEquals(points[0][1], uuid3) broker.newid(uuid2) with broker.get() as conn: uuids = [r[0] for r in conn.execute('SELECT * FROM test_stat')] self.assertEquals(len(uuids), 1) self.assertNotEquals(uuids[0], uuid1) points = [(r[0], r[1]) for r in conn.execute( 'SELECT sync_point, ' 'remote_id FROM incoming_sync WHERE remote_id = ?', (uuid2,))] self.assertEquals(len(points), 1) self.assertEquals(points[0][1], uuid2) def test_get_items_since(self): broker = DatabaseBroker(':memory:') broker.db_type = 'test' broker.db_contains_type = 'test' def _initialize(conn, timestamp): conn.execute('CREATE TABLE test (one TEXT)') conn.execute('INSERT INTO test (one) VALUES ("1")') conn.execute('INSERT INTO test (one) VALUES ("2")') conn.execute('INSERT INTO test (one) VALUES ("3")') conn.commit() broker._initialize = _initialize broker.initialize(normalize_timestamp('1')) self.assertEquals(broker.get_items_since(-1, 10), [{'one': '1'}, {'one': '2'}, {'one': '3'}]) self.assertEquals(broker.get_items_since(-1, 2), [{'one': '1'}, {'one': '2'}]) self.assertEquals(broker.get_items_since(1, 2), [{'one': '2'}, {'one': '3'}]) self.assertEquals(broker.get_items_since(3, 2), []) self.assertEquals(broker.get_items_since(999, 2), []) def test_get_sync(self): broker = DatabaseBroker(':memory:') broker.db_type = 'test' broker.db_contains_type = 'test' uuid1 = str(uuid4()) def _initialize(conn, timestamp): conn.execute('CREATE TABLE test (one TEXT)') conn.execute('CREATE TABLE test_stat (id TEXT)') conn.execute('INSERT INTO test_stat (id) VALUES (?)', (uuid1,)) conn.execute('INSERT INTO test (one) VALUES ("1")') conn.commit() pass broker._initialize = _initialize broker.initialize(normalize_timestamp('1')) uuid2 = str(uuid4()) self.assertEquals(broker.get_sync(uuid2), -1) broker.newid(uuid2) self.assertEquals(broker.get_sync(uuid2), 1) uuid3 = str(uuid4()) self.assertEquals(broker.get_sync(uuid3), -1) with broker.get() as conn: conn.execute('INSERT INTO test (one) VALUES ("2")') conn.commit() broker.newid(uuid3) self.assertEquals(broker.get_sync(uuid2), 1) self.assertEquals(broker.get_sync(uuid3), 2) self.assertEquals(broker.get_sync(uuid2, incoming=False), -1) self.assertEquals(broker.get_sync(uuid3, incoming=False), -1) broker.merge_syncs([{'sync_point': 1, 'remote_id': uuid2}], incoming=False) self.assertEquals(broker.get_sync(uuid2), 1) self.assertEquals(broker.get_sync(uuid3), 2) self.assertEquals(broker.get_sync(uuid2, incoming=False), 1) self.assertEquals(broker.get_sync(uuid3, incoming=False), -1) broker.merge_syncs([{'sync_point': 2, 'remote_id': uuid3}], incoming=False) self.assertEquals(broker.get_sync(uuid2, incoming=False), 1) self.assertEquals(broker.get_sync(uuid3, incoming=False), 2) def test_merge_syncs(self): broker = DatabaseBroker(':memory:') def stub(*args, **kwargs): pass broker._initialize = stub broker.initialize(normalize_timestamp('1')) uuid2 = str(uuid4()) broker.merge_syncs([{'sync_point': 1, 'remote_id': uuid2}]) self.assertEquals(broker.get_sync(uuid2), 1) uuid3 = str(uuid4()) broker.merge_syncs([{'sync_point': 2, 'remote_id': uuid3}]) self.assertEquals(broker.get_sync(uuid2), 1) self.assertEquals(broker.get_sync(uuid3), 2) self.assertEquals(broker.get_sync(uuid2, incoming=False), -1) self.assertEquals(broker.get_sync(uuid3, incoming=False), -1) broker.merge_syncs([{'sync_point': 3, 'remote_id': uuid2}, {'sync_point': 4, 'remote_id': uuid3}], incoming=False) self.assertEquals(broker.get_sync(uuid2, incoming=False), 3) self.assertEquals(broker.get_sync(uuid3, incoming=False), 4) self.assertEquals(broker.get_sync(uuid2), 1) 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()