class TestPostgresql(unittest.TestCase): @patch('subprocess.call', Mock(return_value=0)) @patch('psycopg2.connect', psycopg2_connect) def setUp(self): self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': 'data/test0', 'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432', 'pg_hba': ['hostssl all all 0.0.0.0/0 md5', 'host all all 0.0.0.0/0 md5'], 'superuser': {'username': '******', 'password': '******'}, 'admin': {'username': '******', 'password': '******'}, 'pg_rewind': {'username': '******', 'password': '******'}, 'replication': {'username': '******', 'password': '******', 'network': '127.0.0.1/32'}, 'parameters': {'foo': 'bar'}, 'recovery_conf': {'foo': 'bar'}, 'callbacks': {'on_start': 'true', 'on_stop': 'true', 'on_restart': 'true', 'on_role_change': 'true', 'on_reload': 'true' }, 'restore': 'true'}) if not os.path.exists(self.p.data_dir): os.makedirs(self.p.data_dir) self.leadermem = Member(0, 'leader', 28, {'conn_url': 'postgres://*****:*****@127.0.0.1:5435/postgres'}) self.leader = Leader(-1, 28, self.leadermem) self.other = Member(0, 'test1', 28, {'conn_url': 'postgres://*****:*****@127.0.0.1:5433/postgres', 'tags': {'replicatefrom': 'leader'}}) self.me = Member(0, 'test0', 28, {'conn_url': 'postgres://*****:*****@127.0.0.1:5434/postgres'}) def tearDown(self): shutil.rmtree('data') def test_data_directory_empty(self): self.assertTrue(self.p.data_directory_empty()) def test_get_initdb_options(self): self.p.initdb_options = [{'encoding': 'UTF8'}, 'data-checksums'] self.assertEquals(self.p.get_initdb_options(), ['--encoding=UTF8', '--data-checksums']) self.p.initdb_options = [{'pgdata': 'bar'}] self.assertRaises(Exception, self.p.get_initdb_options) self.p.initdb_options = [{'foo': 'bar', 1: 2}] self.assertRaises(Exception, self.p.get_initdb_options) self.p.initdb_options = [1] self.assertRaises(Exception, self.p.get_initdb_options) def test_initialize(self): self.assertTrue(self.p.initialize()) self.assertTrue(os.path.exists(os.path.join(self.p.data_dir, 'pg_hba.conf'))) @patch('os.path.exists', Mock(return_value=True)) @patch('os.unlink', Mock()) def test_delete_trigger_file(self): self.p.delete_trigger_file() def test_start(self): self.assertTrue(self.p.start()) self.p.is_running = false open(os.path.join(self.p.data_dir, 'postmaster.pid'), 'w').close() self.assertTrue(self.p.start()) def test_stop(self): self.assertTrue(self.p.stop()) with patch('subprocess.call', Mock(return_value=1)): self.assertTrue(self.p.stop()) self.p.is_running = Mock(return_value=True) self.assertFalse(self.p.stop()) def test_restart(self): self.p.start = false self.p.is_running = false self.assertFalse(self.p.restart()) self.assertEquals(self.p.state, 'restart failed (restarting)') @patch.object(builtins, 'open', MagicMock()) def test_write_pgpass(self): self.p.write_pgpass({'host': 'localhost', 'port': '5432', 'user': '******', 'password': '******'}) @patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict())) def test_sync_replica(self): self.assertTrue(self.p.sync_replica(self.leader)) self.p.create_replica = Mock(return_value=1) self.assertFalse(self.p.sync_replica(self.leader)) @patch('subprocess.call', side_effect=OSError) @patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict())) def test_pg_rewind(self, mock_call): self.assertTrue(self.p.rewind(self.leader)) subprocess.call = mock_call self.assertFalse(self.p.rewind(self.leader)) @patch('patroni.postgresql.Postgresql.rewind', return_value=False) @patch('patroni.postgresql.Postgresql.remove_data_directory', MagicMock(return_value=True)) @patch('patroni.postgresql.Postgresql.single_user_mode', MagicMock(return_value=1)) @patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict())) @patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string)) def test_follow(self, mock_pg_rewind): self.p.follow(None) self.p.follow(self.leader) self.p.follow(Leader(-1, 28, self.other)) self.p.rewind = mock_pg_rewind self.p.follow(self.leader) self.p.require_rewind() with mock.patch('os.path.islink', MagicMock(return_value=True)): with mock.patch('patroni.postgresql.Postgresql.can_rewind', new_callable=PropertyMock(return_value=True)): with mock.patch('os.unlink', MagicMock(return_value=True)): self.p.follow(self.leader, recovery=True) self.p.require_rewind() with mock.patch('patroni.postgresql.Postgresql.can_rewind', new_callable=PropertyMock(return_value=True)): self.p.rewind.return_value = True self.p.follow(self.leader, recovery=True) self.p.rewind.return_value = False self.p.follow(self.leader, recovery=True) with mock.patch('patroni.postgresql.Postgresql.check_recovery_conf', MagicMock(return_value=True)): self.assertTrue(self.p.follow(None)) @patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string)) def test_can_rewind(self): tmp = self.p.pg_rewind self.p.pg_rewind = None self.assertFalse(self.p.can_rewind) self.p.pg_rewind = tmp with mock.patch('subprocess.call', MagicMock(return_value=1)): self.assertFalse(self.p.can_rewind) with mock.patch('subprocess.call', side_effect=OSError): self.assertFalse(self.p.can_rewind) tmp = self.p.controldata self.p.controldata = lambda: {'wal_log_hints setting': 'on'} self.assertTrue(self.p.can_rewind) self.p.controldata = tmp @patch('time.sleep', Mock()) def test_create_replica(self): self.p.delete_trigger_file = Mock(side_effect=OSError) with patch('subprocess.call', Mock(side_effect=[1, 0])): self.assertEquals(self.p.create_replica(self.leader, ''), 0) with patch('subprocess.call', Mock(side_effect=[Exception(), 0])): self.assertEquals(self.p.create_replica(self.leader, ''), 0) self.p.config['create_replica_method'] = ['wale', 'basebackup'] self.p.config['wale'] = {'command': 'foo'} with patch('subprocess.call', Mock(return_value=0)): self.assertEquals(self.p.create_replica(self.leader, ''), 0) del self.p.config['wale'] self.assertEquals(self.p.create_replica(self.leader, ''), 0) with patch('subprocess.call', Mock(side_effect=Exception("foo"))): self.assertEquals(self.p.create_replica(self.leader, ''), 1) def test_sync_replication_slots(self): self.p.start() cluster = Cluster(True, self.leader, 0, [self.me, self.other, self.leadermem], None) self.p.sync_replication_slots(cluster) self.p.query = Mock(side_effect=psycopg2.OperationalError) self.p.schedule_load_slots = True self.p.sync_replication_slots(cluster) self.p.schedule_load_slots = False with mock.patch('patroni.postgresql.Postgresql.role', new_callable=PropertyMock(return_value='replica')): self.p.sync_replication_slots(cluster) @patch.object(MockConnect, 'closed', 2) def test__query(self): self.assertRaises(PostgresConnectionException, self.p._query, 'blabla') self.p._state = 'restarting' self.assertRaises(RetryFailedError, self.p._query, 'blabla') def test_query(self): self.p.query('select 1') self.assertRaises(PostgresConnectionException, self.p.query, 'RetryFailedError') self.assertRaises(psycopg2.OperationalError, self.p.query, 'blabla') def test_is_leader(self): self.assertTrue(self.p.is_leader()) def test_reload(self): self.assertTrue(self.p.reload()) def test_is_healthy(self): self.assertTrue(self.p.is_healthy()) self.p.is_running = false self.assertFalse(self.p.is_healthy()) def test_promote(self): self.p._role = 'replica' self.assertTrue(self.p.promote()) self.assertTrue(self.p.promote()) def test_last_operation(self): self.assertEquals(self.p.last_operation(), '0') @patch('subprocess.Popen', Mock(side_effect=OSError)) def test_call_nowait(self): self.assertFalse(self.p.call_nowait('on_start')) def test_non_existing_callback(self): self.assertFalse(self.p.call_nowait('foobar')) def test_is_leader_exception(self): self.p.start() self.p.query = Mock(side_effect=psycopg2.OperationalError("not supported")) self.assertTrue(self.p.stop()) def test_check_replication_lag(self): self.assertTrue(self.p.check_replication_lag(0)) @patch('os.rename', Mock()) @patch('os.path.isdir', Mock(return_value=True)) def test_move_data_directory(self): self.p.is_running = false self.p.move_data_directory() with patch('os.rename', Mock(side_effect=OSError)): self.p.move_data_directory() @patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict())) def test_bootstrap(self): with patch('subprocess.call', Mock(return_value=1)): self.assertRaises(PostgresException, self.p.bootstrap) self.p.bootstrap() with patch('patroni.postgresql.Postgresql.sync_replica', MagicMock(return_value=True)): self.p.bootstrap(self.leader) def test_remove_data_directory(self): self.p.data_dir = 'data_dir' self.p.remove_data_directory() os.mkdir(self.p.data_dir) self.p.remove_data_directory() open(self.p.data_dir, 'w').close() self.p.remove_data_directory() os.symlink('unexisting', self.p.data_dir) with patch('os.unlink', Mock(side_effect=OSError)): self.p.remove_data_directory() self.p.remove_data_directory() def test_controldata(self): with patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string)): data = self.p.controldata() self.assertEquals(len(data), 50) self.assertEquals(data['Database cluster state'], 'shut down in recovery') self.assertEquals(data['wal_log_hints setting'], 'on') self.assertEquals(int(data['Database block size']), 8192) with patch('subprocess.check_output', Mock(side_effect=subprocess.CalledProcessError(1, ''))): self.assertEquals(self.p.controldata(), {}) def test_read_postmaster_opts(self): m = mock_open(read_data=postmaster_opts_string()) with patch.object(builtins, 'open', m): data = self.p.read_postmaster_opts() self.assertEquals(data['wal_level'], 'hot_standby') self.assertEquals(int(data['max_replication_slots']), 5) self.assertEqual(data.get('D'), None) m.side_effect = IOError data = self.p.read_postmaster_opts() self.assertEqual(data, dict()) @patch('subprocess.Popen') @patch.object(builtins, 'open', MagicMock(return_value=42)) def test_single_user_mode(self, subprocess_popen_mock): subprocess_popen_mock.return_value.wait.return_value = 0 self.assertEquals(self.p.single_user_mode(options=dict(archive_mode='on', archive_command='false')), 0) subprocess_popen_mock.assert_called_once_with(['postgres', '--single', '-D', self.p.data_dir, '-c', 'archive_command=false', '-c', 'archive_mode=on', 'postgres'], stdin=subprocess.PIPE, stdout=42, stderr=subprocess.STDOUT) subprocess_popen_mock.reset_mock() self.assertEquals(self.p.single_user_mode(command="CHECKPOINT"), 0) subprocess_popen_mock.assert_called_once_with(['postgres', '--single', '-D', self.p.data_dir, 'postgres'], stdin=subprocess.PIPE, stdout=42, stderr=subprocess.STDOUT) subprocess_popen_mock.return_value = None self.assertEquals(self.p.single_user_mode(), 1) @patch('os.listdir', MagicMock(side_effect=fake_listdir)) @patch('os.unlink', return_value=True) @patch('os.remove', return_value=True) @patch('os.path.islink', return_value=False) @patch('os.path.isfile', return_value=True) def test_cleanup_archive_status(self, mock_file, mock_link, mock_remove, mock_unlink): ap = os.path.join(self.p.data_dir, 'pg_xlog', 'archive_status/') self.p.cleanup_archive_status() mock_remove.assert_has_calls([mock.call(ap+'a'), mock.call(ap+'b'), mock.call(ap+'c')]) mock_unlink.assert_not_called() mock_remove.reset_mock() mock_file.return_value = False mock_link.return_value = True self.p.cleanup_archive_status() mock_unlink.assert_has_calls([mock.call(ap+'a'), mock.call(ap+'b'), mock.call(ap+'c')]) mock_remove.assert_not_called() mock_unlink.reset_mock() mock_remove.reset_mock() mock_file.side_effect = OSError mock_link.side_effect = OSError self.p.cleanup_archive_status() mock_unlink.assert_not_called() mock_remove.assert_not_called() @patch('subprocess.check_output', MagicMock(return_value=0, side_effect=pg_controldata_string)) def test_sysid(self): self.assertEqual(self.p.sysid, "6200971513092291716") @patch('os.path.isfile', Mock(return_value=True)) @patch('shutil.copy', Mock(side_effect=IOError)) def test_save_configuration_files(self): self.p.save_configuration_files() @patch('os.path.isfile', Mock(side_effect=[False, True])) @patch('shutil.copy', Mock(side_effect=IOError)) def test_restore_configuration_files(self): self.p.restore_configuration_files() def test_can_create_replica_without_replication_connection(self): self.p.config['create_replica_method'] = [] self.assertFalse(self.p.can_create_replica_without_replication_connection()) self.p.config['create_replica_method'] = ['wale', 'basebackup'] self.p.config['wale'] = {'command': 'foo', 'no_master': 1} self.assertTrue(self.p.can_create_replica_without_replication_connection()) def test_replica_method_can_work_without_replication_connection(self): self.assertFalse(self.p.replica_method_can_work_without_replication_connection('basebackup')) self.assertFalse(self.p.replica_method_can_work_without_replication_connection('foobar')) self.p.config['foo'] = {'command': 'bar', 'no_master': 1} self.assertTrue(self.p.replica_method_can_work_without_replication_connection('foo')) self.p.config['foo'] = {'command': 'bar'} self.assertFalse(self.p.replica_method_can_work_without_replication_connection('foo'))