def test_default_future_blocks_greenlets(self):
""" Default Future using regular Condition/RLock blocks greenlets
"""
f = Future()
def _set_result():
sleep(0.1)
f.set_result(123)
spawn(_set_result)
try:
f.result(timeout=0.2)
except TimeoutError:
# a timeout means the _set_result greenlet has been blocked
# by the future's lock, which we expect
pass
else:
self.assertTrue(False)
def test_patched_future_respects_greenlets(self):
""" A Future using gevent Condition/RLock respects greenlets
"""
f = Future(condition=threading.Condition())
def _set_result():
sleep(0.1)
f.set_result(123)
spawn(_set_result)
try:
res = f.result(timeout=0.2)
self.assertEquals(res, 123)
except TimeoutError:
# a timeout means the _set_result greenlet has been blocked
# by the future's lock, which should not happen
self.assertTrue(False)