def test_gc_unused_connection(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool', 2, close_f, MyConnection,
'local', 8888, db=3)
# Both connections out the pool.
with pool.get_connection() as conn1:
with pool.get_connection() as conn2:
pass
self.assertEqual(2, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(2, pool.num_connected)
with pool.get_connection() as conn3:
self.assertIs(conn3, conn1)
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_in_use)
self.assertEqual(2, pool.num_connected)
self.assertEqual(1, len(pool._queue.queue))
for c in pool._queue.queue:
c.last_access_time -= 1.1
pool._gc_unused_conn(1)
self.assertEqual(1, len(pool._queue.queue))
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_in_use)
self.assertEqual(1, pool.num_connected)
self.assertEqual(2, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(1, pool.num_connected)
close_f.assert_called_once_with(conn2)
def test_get_connection_expired(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool', 1, close_f, MyConnection,
'local', 8888, db=3)
with self.assertRaises(ExpiredConnection) as cm:
with pool.get_connection(expiration=0.01) as conn:
gevent.sleep(1)
self.assertEqual('Connection is out pool (mypool,local,8888,db=3) for '
'too long (0.01 secs)', str(cm.exception))
self.assertEqual(1, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(0, pool.num_connected)
close_f.assert_called_once_with(conn)
with pool.get_connection(block=False) as conn:
self.assertIsNot(conn, None)
def test_gc_unused_connection(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool',
2,
close_f,
MyConnection,
'local',
8888,
db=3)
# Both connections out the pool.
with pool.get_connection() as conn1:
with pool.get_connection() as conn2:
pass
self.assertEqual(2, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(2, pool.num_connected)
with pool.get_connection() as conn3:
self.assertIs(conn3, conn1)
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_in_use)
self.assertEqual(2, pool.num_connected)
self.assertEqual(1, len(pool._queue.queue))
for c in pool._queue.queue:
c.last_access_time -= 1.1
pool._gc_unused_conn(1)
self.assertEqual(1, len(pool._queue.queue))
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_in_use)
self.assertEqual(1, pool.num_connected)
self.assertEqual(2, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(1, pool.num_connected)
close_f.assert_called_once_with(conn2)
def test_get_connection_expired(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool',
1,
close_f,
MyConnection,
'local',
8888,
db=3)
with self.assertRaises(ExpiredConnection) as cm:
with pool.get_connection(expiration=0.01) as conn:
gevent.sleep(1)
self.assertEqual(
'Connection is out pool (mypool,local,8888,db=3) for '
'too long (0.01 secs)', str(cm.exception))
self.assertEqual(1, pool.qsize())
self.assertEqual(0, pool.num_in_use)
self.assertEqual(0, pool.num_connected)
close_f.assert_called_once_with(conn)
with pool.get_connection(block=False) as conn:
self.assertIsNot(conn, None)
def test_context_manager_exception(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool', 2, close_f, MyConnection,
'local', 8888, db=3)
e = Exception("error")
try:
with pool.get_connection() as conn:
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
raise e
except Exception, ex:
self.assertIs(ex, e)
def test_context_manager(self):
pool = ConnectionPool('mypool', 2, close_conn, MyConnection,
'local', 8888, db=3)
with pool.get_connection() as conn:
self.assertIsNot(conn, None)
self.assertIsInstance(conn, MyConnection)
self.assertEqual('local', conn.host)
self.assertEqual(8888, conn.port)
self.assertEqual(3, conn.db)
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
self.assertEqual(2, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(0, pool.num_in_use)
def test_failed_connection_creation(self):
pool = ConnectionPool('mypool', 1, close_conn, MyBadConnection,
'local', 8888, db=3)
self.assertEqual(1, pool.qsize())
with self.assertRaises(Exception) as cm1:
pool.get()
self.assertEqual('Failed to create Connection', str(cm1.exception))
# Make sure the connection is returned to the pool.
self.assertEqual(1, pool.qsize())
with self.assertRaises(Exception) as cm2:
with pool.get_connection():
pass
self.assertEqual('Failed to create Connection', str(cm2.exception))
self.assertEqual(1, pool.qsize())
def test_context_manager_exception_with_replace_if(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool', 2, close_f, MyConnection,
'local', 8888, db=3)
e = Exception("error")
def replace_if(ex):
return ex is not e
try:
with pool.get_connection(replace_if=replace_if) as conn:
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
raise e
except Exception, ex:
self.assertIs(ex, e)
def test_context_manager_exception(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool',
2,
close_f,
MyConnection,
'local',
8888,
db=3)
e = Exception("error")
try:
with pool.get_connection() as conn:
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
raise e
except Exception, ex:
self.assertIs(ex, e)
def test_context_manager(self):
pool = ConnectionPool('mypool',
2,
close_conn,
MyConnection,
'local',
8888,
db=3)
with pool.get_connection() as conn:
self.assertIsNot(conn, None)
self.assertIsInstance(conn, MyConnection)
self.assertEqual('local', conn.host)
self.assertEqual(8888, conn.port)
self.assertEqual(3, conn.db)
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
self.assertEqual(2, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(0, pool.num_in_use)
def test_failed_connection_creation(self):
pool = ConnectionPool('mypool',
1,
close_conn,
MyBadConnection,
'local',
8888,
db=3)
self.assertEqual(1, pool.qsize())
with self.assertRaises(Exception) as cm1:
pool.get()
self.assertEqual('Failed to create Connection', str(cm1.exception))
# Make sure the connection is returned to the pool.
self.assertEqual(1, pool.qsize())
with self.assertRaises(Exception) as cm2:
with pool.get_connection():
pass
self.assertEqual('Failed to create Connection', str(cm2.exception))
self.assertEqual(1, pool.qsize())
def test_context_manager_exception_with_replace_if(self):
close_f = mock.Mock()
pool = ConnectionPool('mypool',
2,
close_f,
MyConnection,
'local',
8888,
db=3)
e = Exception("error")
def replace_if(ex):
return ex is not e
try:
with pool.get_connection(replace_if=replace_if) as conn:
self.assertEqual(1, pool.qsize())
self.assertEqual(1, pool.num_connected)
self.assertEqual(1, pool.num_in_use)
raise e
except Exception, ex:
self.assertIs(ex, e)
