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import unittest
import sys
import pytest
from kazoo.client import KazooClient
from kazoo.exceptions import NoNodeError
from kazoo.protocol.states import Callback
from kazoo.testing import KazooTestCase
from kazoo.tests import test_client
@pytest.mark.skipif(sys.platform == "win32", reason="does not run on windows")
class TestGeventHandler(unittest.TestCase):
def setUp(self):
try:
import gevent # NOQA
except ImportError:
pytest.skip("gevent not available.")
def _makeOne(self, *args):
from kazoo.handlers.gevent import SequentialGeventHandler
return SequentialGeventHandler(*args)
def _getAsync(self, *args):
from kazoo.handlers.gevent import AsyncResult
return AsyncResult
def _getEvent(self):
from gevent.event import Event
return Event
def test_proper_threading(self):
h = self._makeOne()
h.start()
assert isinstance(h.event_object(), self._getEvent())
def test_matching_async(self):
h = self._makeOne()
h.start()
async_handler = self._getAsync()
assert isinstance(h.async_result(), async_handler)
def test_exception_raising(self):
h = self._makeOne()
with pytest.raises(h.timeout_exception):
raise h.timeout_exception("This is a timeout")
def test_exception_in_queue(self):
h = self._makeOne()
h.start()
ev = self._getEvent()()
def func():
ev.set()
raise ValueError("bang")
call1 = Callback("completion", func, ())
h.dispatch_callback(call1)
ev.wait()
def test_queue_empty_exception(self):
from gevent.queue import Empty
h = self._makeOne()
h.start()
ev = self._getEvent()()
def func():
ev.set()
raise Empty()
call1 = Callback("completion", func, ())
h.dispatch_callback(call1)
ev.wait()
@pytest.mark.skipif(sys.platform == "win32", reason="does not run on windows")
class TestBasicGeventClient(KazooTestCase):
def setUp(self):
try:
import gevent # NOQA
except ImportError:
pytest.skip("gevent not available.")
KazooTestCase.setUp(self)
def _makeOne(self, *args):
from kazoo.handlers.gevent import SequentialGeventHandler
return SequentialGeventHandler(*args)
def _getEvent(self):
from gevent.event import Event
return Event
def test_start(self):
client = self._get_client(handler=self._makeOne())
client.start()
assert client.state == "CONNECTED"
client.stop()
def test_start_stop_double(self):
client = self._get_client(handler=self._makeOne())
client.start()
assert client.state == "CONNECTED"
client.handler.start()
client.handler.stop()
client.stop()
def test_basic_commands(self):
client = self._get_client(handler=self._makeOne())
client.start()
assert client.state == "CONNECTED"
client.create("/anode", b"fred")
assert client.get("/anode")[0] == b"fred"
assert client.delete("/anode")
assert client.exists("/anode") is None
client.stop()
def test_failures(self):
client = self._get_client(handler=self._makeOne())
client.start()
with pytest.raises(NoNodeError):
client.get("/none")
client.stop()
def test_data_watcher(self):
client = self._get_client(handler=self._makeOne())
client.start()
client.ensure_path("/some/node")
ev = self._getEvent()()
@client.DataWatch("/some/node")
def changed(d, stat):
ev.set()
ev.wait()
ev.clear()
client.set("/some/node", b"newvalue")
ev.wait()
client.stop()
def test_huge_file_descriptor(self):
import resource
from gevent import socket
from kazoo.handlers.utils import create_tcp_socket
try:
resource.setrlimit(resource.RLIMIT_NOFILE, (4096, 4096))
except (ValueError, resource.error):
self.skipTest("couldnt raise fd limit high enough")
fd = 0
socks = []
while fd < 4000:
sock = create_tcp_socket(socket)
fd = sock.fileno()
socks.append(sock)
h = self._makeOne()
h.start()
h.select(socks, [], [], 0)
h.stop()
for sock in socks:
sock.close()
@pytest.mark.skipif(sys.platform == "win32", reason="does not run on windows")
class TestGeventClient(test_client.TestClient):
def setUp(self):
try:
import gevent # NOQA
except ImportError:
pytest.skip("gevent not available.")
KazooTestCase.setUp(self)
def _makeOne(self, *args):
from kazoo.handlers.gevent import SequentialGeventHandler
return SequentialGeventHandler(*args)
def _get_client(self, **kwargs):
kwargs["handler"] = self._makeOne()
return KazooClient(self.hosts, **kwargs)
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