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': {'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'})
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_initialize(self):
self.assertTrue(self.p.initialize())
self.assertTrue(os.path.exists(os.path.join(self.p.data_dir, 'pg_hba.conf')))
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)')
def test_sync_from_leader(self):
self.assertTrue(self.p.sync_from_leader(self.leader))
@patch('subprocess.call', side_effect=Exception("Test"))
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))
def test_follow_the_leader(self, mock_pg_rewind):
self.p.demote()
self.p.follow_the_leader(None)
self.p.demote()
self.p.follow_the_leader(self.leader)
self.p.follow_the_leader(Leader(-1, 28, self.other))
self.p.rewind = mock_pg_rewind
self.p.follow_the_leader(self.leader)
self.p.require_rewind()
with mock.patch('os.path.islink', MagicMock(return_value=True)):
with mock.patch('os.unlink', MagicMock(return_value=True)):
with mock.patch('patroni.postgresql.Postgresql.can_rewind', new_callable=PropertyMock(return_value=True)):
self.p.follow_the_leader(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_the_leader(self.leader, recovery=True)
self.p.rewind.return_value = False
self.p.follow_the_leader(self.leader, recovery=True)
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("foo")):
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
def test_create_replica(self):
self.p.delete_trigger_file = Mock(side_effect=OSError())
self.assertEquals(self.p.create_replica({'host': '', 'port': '', 'user': ''}, ''), 1)
def test_create_connection_users(self):
cfg = self.p.config
cfg['superuser']['username'] = '******'
p = Postgresql(cfg)
p.create_connection_users()
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)
@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()
def test_bootstrap(self):
with patch('subprocess.call', Mock(return_value=1)):
self.assertRaises(PostgresException, self.p.bootstrap)
self.p.bootstrap()
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=Exception)):
self.p.remove_data_directory()
self.p.remove_data_directory()
@patch('subprocess.check_output', MagicMock(return_value=0, side_effect=pg_controldata_string))
@patch('subprocess.check_output', side_effect=subprocess.CalledProcessError)
@patch('subprocess.check_output', side_effect=Exception('Failed'))
def test_controldata(self, check_output_call_error, check_output_generic_exception):
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)
subprocess.check_output = check_output_call_error
data = self.p.controldata()
self.assertEquals(data, dict())
subprocess.check_output = check_output_generic_exception
self.assertRaises(Exception, 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("foo")
data = self.p.read_postmaster_opts()
self.assertEqual(data, dict())
m.side_effect = Exception("foo")
self.assertRaises(Exception, self.p.read_postmaster_opts())
@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)
def fake_listdir(path):
if path.endswith(os.path.join('pg_xlog', 'archive_status')):
return ["a", "b", "c"]
return []
@patch('os.listdir', MagicMock(side_effect=fake_listdir))
@patch('os.path.isdir', MagicMock(return_value=True))
@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 = Exception("foo")
mock_link.side_effect = Exception("foo")
self.p.cleanup_archive_status()
mock_unlink.assert_not_called()
mock_remove.assert_not_called()
class TestPostgresql(unittest.TestCase):
_PARAMETERS = {'wal_level': 'hot_standby', 'max_replication_slots': 5, 'f.oo': 'bar',
'search_path': 'public', 'hot_standby': 'on', 'max_wal_senders': 5,
'wal_keep_segments': 8, 'wal_log_hints': 'on', 'max_locks_per_transaction': 64,
'max_worker_processes': 8, 'max_connections': 100, 'max_prepared_transactions': 0}
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
@patch.object(Postgresql, 'get_major_version', Mock(return_value=9.4))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def setUp(self):
self.data_dir = 'data/test0'
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': self.data_dir, 'retry_timeout': 10,
'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432',
'authentication': {'superuser': {'username': '******', 'password': '******'},
'replication': {'username': '******', 'password': '******'}},
'remove_data_directory_on_rewind_failure': True,
'use_pg_rewind': True, 'pg_ctl_timeout': 'bla',
'parameters': self._PARAMETERS,
'recovery_conf': {'foo': 'bar'},
'callbacks': {'on_start': 'true', 'on_stop': 'true',
'on_restart': 'true', 'on_role_change': 'true',
'on_reload': 'true'
},
'restore': 'true'})
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_get_initdb_options(self):
self.assertEquals(self.p.get_initdb_options([{'encoding': 'UTF8'}, 'data-checksums']),
['--encoding=UTF8', '--data-checksums'])
self.assertRaises(Exception, self.p.get_initdb_options, [{'pgdata': 'bar'}])
self.assertRaises(Exception, self.p.get_initdb_options, [{'foo': 'bar', 1: 2}])
self.assertRaises(Exception, self.p.get_initdb_options, [1])
@patch('os.path.exists', Mock(return_value=True))
@patch('os.unlink', Mock())
def test_delete_trigger_file(self):
self.p.delete_trigger_file()
@patch.object(Postgresql, 'is_running')
def test_start(self, mock_is_running):
mock_is_running.return_value = True
self.assertTrue(self.p.start())
mock_is_running.return_value = False
open(os.path.join(self.data_dir, 'postmaster.pid'), 'w').close()
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertTrue(self.p.start())
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("f.oo = 'bar'\n" in lines)
@patch.object(Postgresql, 'is_running')
def test_stop(self, mock_is_running):
mock_is_running.return_value = True
self.assertTrue(self.p.stop())
with patch('subprocess.call', Mock(return_value=1)):
mock_is_running.return_value = False
self.assertTrue(self.p.stop())
def test_restart(self):
self.p.start = 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': '******'})
def test_checkpoint(self):
with patch.object(MockCursor, 'fetchone', Mock(return_value=(True, ))):
self.assertEquals(self.p.checkpoint({'user': '******'}), 'is_in_recovery=true')
with patch.object(MockCursor, 'execute', Mock(return_value=None)):
self.assertIsNone(self.p.checkpoint())
self.assertEquals(self.p.checkpoint(), 'not accessible or not healty')
@patch('subprocess.call', side_effect=OSError)
@patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict()))
def test_pg_rewind(self, mock_call):
r = {'user': '', 'host': '', 'port': '', 'database': '', 'password': ''}
self.assertTrue(self.p.rewind(r))
subprocess.call = mock_call
self.assertFalse(self.p.rewind(r))
@patch('os.unlink', Mock(return_value=True))
@patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string))
@patch.object(Postgresql, 'remove_data_directory', Mock(return_value=True))
@patch.object(Postgresql, 'single_user_mode', Mock(return_value=1))
@patch.object(Postgresql, 'write_pgpass', Mock(return_value={}))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
@patch.object(Postgresql, 'can_rewind', PropertyMock(return_value=True))
@patch.object(Postgresql, 'rewind', return_value=False)
def test_follow(self, mock_pg_rewind):
with patch.object(Postgresql, 'check_recovery_conf', Mock(return_value=True)):
self.assertTrue(self.p.follow(None, None)) # nothing to do, recovery.conf has good primary_conninfo
self.p.follow(self.me, self.me) # follow is called when the node is holding leader lock
with patch.object(Postgresql, 'restart', Mock(return_value=False)):
self.p.set_role('replica')
self.p.follow(None, None) # restart without rewind
self.p.set_role('master')
with patch.object(Postgresql, 'stop', Mock(return_value=False)):
self.p.follow(self.leader, self.leader) # failed to stop postgres
self.p.follow(self.leader, None) # Leader unknown, can not rewind
self.p.follow(self.leader, self.leader) # "leader" is not accessible or is_in_recovery
with patch.object(Postgresql, 'checkpoint', Mock(return_value=None)):
self.p.follow(self.leader, self.leader)
self.p.set_role('master')
mock_pg_rewind.return_value = True
self.p.follow(self.leader, self.leader)
self.p.follow(None, None) # check_recovery_conf...
@patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string))
def test_can_rewind(self):
with patch('subprocess.call', MagicMock(return_value=1)):
self.assertFalse(self.p.can_rewind)
with patch('subprocess.call', side_effect=OSError):
self.assertFalse(self.p.can_rewind)
with patch.object(Postgresql, 'controldata', Mock(return_value={'wal_log_hints setting': 'on'})):
self.assertTrue(self.p.can_rewind)
self.p.config['use_pg_rewind'] = False
self.assertFalse(self.p.can_rewind)
@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)
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def test_sync_replication_slots(self):
self.p.start()
cluster = Cluster(True, None, 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())
@patch.object(Postgresql, 'is_running')
def test_is_healthy(self, mock_is_running):
mock_is_running.return_value = True
self.assertTrue(self.p.is_healthy())
mock_is_running.return_value = 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('os.path.isfile', Mock(return_value=True))
@patch('os.kill', Mock(side_effect=Exception))
@patch('os.getpid', Mock(return_value=2))
@patch('os.getppid', Mock(return_value=2))
@patch.object(builtins, 'open', mock_open(read_data='-1'))
@patch.object(Postgresql, '_version_file_exists', Mock(return_value=True))
def test_is_running(self):
self.assertFalse(self.p.is_running())
@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'))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
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.move_data_directory()
with patch('os.rename', Mock(side_effect=OSError)):
self.p.move_data_directory()
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def test_bootstrap(self):
with patch('subprocess.call', Mock(return_value=1)):
self.assertRaises(PostgresException, self.p.bootstrap, {})
self.p.bootstrap({'users': {'replicator': {'password': '******', 'options': ['replication']}},
'pg_hba': ['host replication replicator 127.0.0.1/32 md5',
'hostssl all all 0.0.0.0/0 md5',
'host all all 0.0.0.0/0 md5']})
with open(os.path.join(self.data_dir, 'pg_hba.conf')) as f:
lines = f.readlines()
assert 'host replication replicator 127.0.0.1/32 md5\n' in lines
assert 'host all all 0.0.0.0/0 md5\n' in lines
@patch('patroni.postgresql.Postgresql.create_replica', Mock(return_value=0))
def test_clone(self):
self.p.clone(self.leader)
@patch('os.listdir', Mock(return_value=['recovery.conf']))
@patch('os.path.exists', Mock(return_value=True))
def test_get_postgres_role_from_data_directory(self):
self.assertEquals(self.p.get_postgres_role_from_data_directory(), 'replica')
def test_remove_data_directory(self):
self.p.remove_data_directory()
open(self.data_dir, 'w').close()
self.p.remove_data_directory()
os.symlink('unexisting', self.data_dir)
with patch('os.unlink', Mock(side_effect=OSError)):
self.p.remove_data_directory()
self.p.remove_data_directory()
@patch('patroni.postgresql.Postgresql._version_file_exists', Mock(return_value=True))
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.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.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.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('patroni.postgresql.Postgresql._version_file_exists', Mock(return_value=True))
@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'))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def test_reload_config(self):
parameters = self._PARAMETERS.copy()
parameters.pop('f.oo')
self.p.reload_config({'retry_timeout': 10, 'listen': '*', 'parameters': parameters})
parameters['b.ar'] = 'bar'
self.p.reload_config({'retry_timeout': 10, 'listen': '*', 'parameters': parameters})
parameters['autovacuum'] = 'on'
self.p.reload_config({'retry_timeout': 10, 'listen': '*', 'parameters': parameters})
parameters['autovacuum'] = 'off'
parameters.pop('search_path')
self.p.reload_config({'retry_timeout': 10, 'listen': '*:5433', 'parameters': parameters})
@patch.object(Postgresql, '_version_file_exists', Mock(return_value=True))
def test_get_major_version(self):
with patch.object(builtins, 'open', mock_open(read_data='9.4')):
self.assertEquals(self.p.get_major_version(), 9.4)
with patch.object(builtins, 'open', Mock(side_effect=Exception)):
self.assertEquals(self.p.get_major_version(), 0.0)
def test_postmaster_start_time(self):
with patch.object(MockCursor, "fetchone", Mock(return_value=('foo', True, '', '', '', '', False))):
self.assertEqual(self.p.postmaster_start_time(), 'foo')
with patch.object(MockCursor, "execute", side_effect=psycopg2.Error):
self.assertIsNone(self.p.postmaster_start_time())
class TestPostgresql(unittest.TestCase):
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
def setUp(self):
self.data_dir = 'data/test0'
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({
'name':
'test0',
'scope':
'batman',
'data_dir':
self.data_dir,
'listen':
'127.0.0.1, *:5432',
'connect_address':
'127.0.0.2:5432',
'pg_hba': [
'host replication replicator 127.0.0.1/32 md5',
'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': '******'
},
'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'
})
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_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())
with open(os.path.join(self.data_dir, 'pg_hba.conf')) as f:
lines = f.readlines()
assert 'host replication replicator 127.0.0.1/32 md5\n' in lines
assert 'host all all 0.0.0.0/0 md5\n' in lines
@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.data_dir, 'postmaster.pid'), 'w').close()
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertTrue(self.p.start())
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("foo = 'bar'\n" in lines)
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('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)
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)
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()
def test_bootstrap(self):
with patch('subprocess.call', Mock(return_value=1)):
self.assertRaises(PostgresException, self.p.bootstrap)
self.p.bootstrap()
@patch('patroni.postgresql.Postgresql.create_replica',
Mock(return_value=0))
def test_clone(self):
self.p.clone(self.leader)
@patch('os.listdir', Mock(return_value=['recovery.conf']))
@patch('os.path.exists', Mock(return_value=True))
def test_get_postgres_role_from_data_directory(self):
self.assertEquals(self.p.get_postgres_role_from_data_directory(),
'replica')
def test_remove_data_directory(self):
self.p.remove_data_directory()
open(self.data_dir, 'w').close()
self.p.remove_data_directory()
os.symlink('unexisting', self.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(), {})
@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.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.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.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'))
class TestPostgresql(unittest.TestCase):
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
def setUp(self):
self.data_dir = 'data/test0'
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': self.data_dir,
'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432',
'pg_hba': ['host replication replicator 127.0.0.1/32 md5',
'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': '******'},
'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'})
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_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())
with open(os.path.join(self.data_dir, 'pg_hba.conf')) as f:
lines = f.readlines()
assert 'host replication replicator 127.0.0.1/32 md5\n' in lines
assert 'host all all 0.0.0.0/0 md5\n' in lines
@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.data_dir, 'postmaster.pid'), 'w').close()
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertTrue(self.p.start())
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("foo = 'bar'\n" in lines)
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('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)
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)
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()
def test_bootstrap(self):
with patch('subprocess.call', Mock(return_value=1)):
self.assertRaises(PostgresException, self.p.bootstrap)
self.p.bootstrap()
@patch('patroni.postgresql.Postgresql.create_replica', Mock(return_value=0))
def test_clone(self):
self.p.clone(self.leader)
@patch('os.listdir', Mock(return_value=['recovery.conf']))
@patch('os.path.exists', Mock(return_value=True))
def test_get_postgres_role_from_data_directory(self):
self.assertEquals(self.p.get_postgres_role_from_data_directory(), 'replica')
def test_remove_data_directory(self):
self.p.remove_data_directory()
open(self.data_dir, 'w').close()
self.p.remove_data_directory()
os.symlink('unexisting', self.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(), {})
@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.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.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.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'))
