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import sys
from unittest.mock import Mock, patch
import pytest
pytest.importorskip('eventlet')
from greenlet import GreenletExit # noqa
import t.skip # noqa
from celery.concurrency.eventlet import TaskPool, Timer, apply_target # noqa
eventlet_modules = (
'eventlet',
'eventlet.debug',
'eventlet.greenthread',
'eventlet.greenpool',
'greenlet',
)
@t.skip.if_pypy
class EventletCase:
def setup_method(self):
self.patching.modules(*eventlet_modules)
def teardown_method(self):
for mod in [mod for mod in sys.modules
if mod.startswith('eventlet')]:
try:
del (sys.modules[mod])
except KeyError:
pass
class test_aaa_eventlet_patch(EventletCase):
def test_aaa_is_patched(self):
with patch('eventlet.monkey_patch', create=True) as monkey_patch:
from celery import maybe_patch_concurrency
maybe_patch_concurrency(['x', '-P', 'eventlet'])
monkey_patch.assert_called_with()
@patch('eventlet.debug.hub_blocking_detection', create=True)
@patch('eventlet.monkey_patch', create=True)
def test_aaa_blockdetecet(
self, monkey_patch, hub_blocking_detection, patching):
patching.setenv('EVENTLET_NOBLOCK', '10.3')
from celery import maybe_patch_concurrency
maybe_patch_concurrency(['x', '-P', 'eventlet'])
monkey_patch.assert_called_with()
hub_blocking_detection.assert_called_with(10.3, 10.3)
class test_Timer(EventletCase):
@pytest.fixture(autouse=True)
def setup_patches(self, patching):
self.spawn_after = patching('eventlet.greenthread.spawn_after')
self.GreenletExit = patching('greenlet.GreenletExit')
def test_sched(self):
x = Timer()
x.GreenletExit = KeyError
entry = Mock()
g = x._enter(1, 0, entry)
assert x.queue
x._entry_exit(g, entry)
g.wait.side_effect = KeyError()
x._entry_exit(g, entry)
entry.cancel.assert_called_with()
assert not x._queue
x._queue.add(g)
x.clear()
x._queue.add(g)
g.cancel.side_effect = KeyError()
x.clear()
def test_cancel(self):
x = Timer()
tref = Mock(name='tref')
x.cancel(tref)
tref.cancel.assert_called_with()
x.GreenletExit = KeyError
tref.cancel.side_effect = KeyError()
x.cancel(tref)
class test_TaskPool(EventletCase):
@pytest.fixture(autouse=True)
def setup_patches(self, patching):
self.GreenPool = patching('eventlet.greenpool.GreenPool')
self.greenthread = patching('eventlet.greenthread')
def test_pool(self):
x = TaskPool()
x.on_start()
x.on_stop()
x.on_apply(Mock())
x._pool = None
x.on_stop()
assert len(x._pool_map.keys()) == 1
assert x.getpid()
@patch('celery.concurrency.eventlet.base')
def test_apply_target(self, base):
apply_target(Mock(), getpid=Mock())
base.apply_target.assert_called()
def test_grow(self):
x = TaskPool(10)
x._pool = Mock(name='_pool')
x.grow(2)
assert x.limit == 12
x._pool.resize.assert_called_with(12)
def test_shrink(self):
x = TaskPool(10)
x._pool = Mock(name='_pool')
x.shrink(2)
assert x.limit == 8
x._pool.resize.assert_called_with(8)
def test_get_info(self):
x = TaskPool(10)
x._pool = Mock(name='_pool')
assert x._get_info() == {
'implementation': 'celery.concurrency.eventlet:TaskPool',
'max-concurrency': 10,
'free-threads': x._pool.free(),
'running-threads': x._pool.running(),
}
def test_terminate_job(self):
func = Mock()
pool = TaskPool(10)
pool.on_start()
pool.on_apply(func)
assert len(pool._pool_map.keys()) == 1
pid = list(pool._pool_map.keys())[0]
greenlet = pool._pool_map[pid]
pool.terminate_job(pid)
greenlet.link.assert_called_once()
greenlet.kill.assert_called_once()
def test_make_killable_target(self):
def valid_target():
return "some result..."
def terminating_target():
raise GreenletExit()
assert TaskPool._make_killable_target(valid_target)() == "some result..."
assert TaskPool._make_killable_target(terminating_target)() == (False, None, None)
def test_cleanup_after_job_finish(self):
testMap = {'1': None}
TaskPool._cleanup_after_job_finish(None, testMap, '1')
assert len(testMap) == 0
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