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import unittest
from unittest.mock import patch
import pytest
try:
from kazoo.handlers.eventlet import green_socket as socket
EVENTLET_HANDLER_AVAILABLE = True
except ImportError:
EVENTLET_HANDLER_AVAILABLE = False
class TestCreateTCPConnection(unittest.TestCase):
def test_timeout_arg(self):
from kazoo.handlers import utils
from kazoo.handlers.utils import create_tcp_connection, socket, time
with patch.object(socket, "create_connection") as create_connection:
with patch.object(utils, "_set_default_tcpsock_options"):
# Ensure a gap between calls to time.time() does not result in
# create_connection being called with a negative timeout
# argument.
with patch.object(time, "time", side_effect=range(10)):
create_tcp_connection(
socket, ("127.0.0.1", 2181), timeout=1.5
)
for call_args in create_connection.call_args_list:
timeout = call_args[0][1]
assert timeout >= 0, "socket timeout must be nonnegative"
def test_timeout_arg_eventlet(self):
if not EVENTLET_HANDLER_AVAILABLE:
pytest.skip("eventlet handler not available.")
from kazoo.handlers import utils
from kazoo.handlers.utils import create_tcp_connection, time
with patch.object(socket, "create_connection") as create_connection:
with patch.object(utils, "_set_default_tcpsock_options"):
# Ensure a gap between calls to time.time() does not result in
# create_connection being called with a negative timeout
# argument.
with patch.object(time, "time", side_effect=range(10)):
create_tcp_connection(
socket, ("127.0.0.1", 2181), timeout=1.5
)
for call_args in create_connection.call_args_list:
timeout = call_args[0][1]
assert timeout >= 0, "socket timeout must be nonnegative"
def test_slow_connect(self):
# Currently, create_tcp_connection will raise a socket timeout if it
# takes longer than the specified "timeout" to create a connection.
# In the future, "timeout" might affect only the created socket and not
# the time it takes to create it.
from kazoo.handlers.utils import create_tcp_connection, socket, time
# Simulate a second passing between calls to check the current time.
with patch.object(time, "time", side_effect=range(10)):
with pytest.raises(socket.error):
create_tcp_connection(socket, ("127.0.0.1", 2181), timeout=0.5)
def test_negative_timeout(self):
from kazoo.handlers.utils import create_tcp_connection, socket
with pytest.raises(socket.error):
create_tcp_connection(socket, ("127.0.0.1", 2181), timeout=-1)
def test_zero_timeout(self):
# Rather than pass '0' through as a timeout to
# socket.create_connection, create_tcp_connection should raise
# socket.error. This is because the socket library treats '0' as an
# indicator to create a non-blocking socket.
from kazoo.handlers.utils import create_tcp_connection, socket, time
# Simulate no time passing between calls to check the current time.
with patch.object(time, "time", return_value=time.time()):
with pytest.raises(socket.error):
create_tcp_connection(socket, ("127.0.0.1", 2181), timeout=0)
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