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# Copyright (c) 2009 AG Projects
# Author: Denis Bilenko
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import greentest
import unittest
import time
import re
import sys
import gevent
from gevent import core
from gevent import socket
from gevent.hub import Waiter
import signal
DELAY = 0.1
class TestScheduleCall(greentest.TestCase):
def test_global(self):
lst = [1]
gevent.spawn(core.timer, DELAY, lst.pop)
gevent.sleep(DELAY * 2)
assert lst == [], lst
class TestCloseSocketWhilePolling(greentest.TestCase):
def test(self):
try:
sock = socket.socket()
core.timer(0, sock.close)
sock.connect(('python.org', 81))
except Exception:
gevent.sleep(0)
else:
assert False, 'expected an error here'
class TestExceptionInMainloop(greentest.TestCase):
def test_sleep(self):
# even if there was an error in the mainloop, the hub should continue to work
start = time.time()
gevent.sleep(DELAY)
delay = time.time() - start
assert delay >= DELAY * 0.9, 'sleep returned after %s seconds (was scheduled for %s)' % (delay, DELAY)
def fail():
raise greentest.ExpectedException('TestExceptionInMainloop.test_sleep/fail')
core.timer(0, fail)
start = time.time()
gevent.sleep(DELAY)
delay = time.time() - start
assert delay >= DELAY * 0.9, 'sleep returned after %s seconds (was scheduled for %s)' % (delay, DELAY)
class TestShutdown(unittest.TestCase):
def _shutdown(self, seconds=0, fuzzy=None):
if fuzzy is None:
fuzzy = max(0.05, seconds / 2.)
start = time.time()
gevent.hub.shutdown()
delta = time.time() - start
assert seconds - fuzzy < delta < seconds + fuzzy, (seconds - fuzzy, delta, seconds + fuzzy)
def assert_hub(self):
assert 'hub' in gevent.hub._threadlocal.__dict__
def assert_no_hub(self):
assert 'hub' not in gevent.hub._threadlocal.__dict__, gevent.hub._threadlocal.__dict__
def test(self):
# make sure Hub is started. For the test case when hub is not started, see test_hub_shutdown.py
gevent.sleep(0)
assert not gevent.hub.get_hub().dead
self._shutdown()
self.assert_no_hub()
# shutting down dead hub is silent
self._shutdown()
self._shutdown()
self.assert_no_hub()
# ressurect
gevent.sleep(0)
self.assert_hub()
gevent.core.timer(0.1, lambda: None)
self.assert_hub()
self._shutdown(seconds=0.1)
self.assert_no_hub()
self._shutdown(seconds=0)
self.assert_no_hub()
class TestSleep(greentest.GenericWaitTestCase):
def wait(self, timeout):
gevent.sleep(timeout)
def test_negative(self):
self.switch_expected = False
self.assertRaises(IOError, gevent.sleep, -1)
if sys.platform != 'win32':
from time import sleep as real_sleep
try:
real_sleep(-0.1)
except IOError, real_ex:
pass
else:
# XXX real_sleep(-0.1) hangs on win32
real_ex = "[Errno 22] Invalid argument"
try:
gevent.sleep(-0.1)
except IOError, gevent_ex:
pass
self.assertEqual(str(gevent_ex), str(real_ex))
class Expected(Exception):
pass
if hasattr(signal, 'SIGALRM'):
class TestSignal(greentest.TestCase):
__timeout__ = 2
def test_exception_goes_to_MAIN(self):
def handler():
raise Expected('TestSignal')
gevent.signal(signal.SIGALRM, handler)
signal.alarm(1)
try:
gevent.spawn(gevent.sleep, 2).join()
raise AssertionError('must raise Expected')
except Expected, ex:
assert str(ex) == 'TestSignal', ex
class TestWaiter(greentest.GenericWaitTestCase):
def setUp(self):
super(TestWaiter, self).setUp()
self.waiter = Waiter()
def wait(self, timeout):
evt = core.timer(timeout, self.waiter.switch, None)
try:
return self.waiter.get()
finally:
evt.cancel()
def test(self):
waiter = self.waiter
self.assertEqual(str(waiter), '<Waiter greenlet=None>')
waiter.switch(25)
self.assertEqual(str(waiter), '<Waiter greenlet=None value=25>')
self.assertEqual(waiter.get(), 25)
waiter = Waiter()
waiter.throw(ZeroDivisionError)
assert re.match('^<Waiter greenlet=None exc_info=.*ZeroDivisionError.*$', str(waiter)), str(waiter)
self.assertRaises(ZeroDivisionError, waiter.get)
waiter = Waiter()
g = gevent.spawn(waiter.get)
gevent.sleep(0)
assert str(waiter).startswith('<Waiter greenlet=<Greenlet at '), str(waiter)
g.kill()
if __name__ == '__main__':
greentest.main()
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