forked from celery/celery
/
test_timer2.py
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/
test_timer2.py
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from __future__ import absolute_import
from __future__ import with_statement
import sys
import time
from kombu.tests.utils import redirect_stdouts
from mock import Mock, patch
import celery.utils.timer2 as timer2
from celery.tests.utils import Case, skip_if_quick
class test_Entry(Case):
def test_call(self):
scratch = [None]
def timed(x, y, moo="foo"):
scratch[0] = (x, y, moo)
tref = timer2.Entry(timed, (4, 4), {"moo": "baz"})
tref()
self.assertTupleEqual(scratch[0], (4, 4, "baz"))
def test_cancel(self):
tref = timer2.Entry(lambda x: x, (1, ), {})
tref.cancel()
self.assertTrue(tref.cancelled)
class test_Schedule(Case):
def test_handle_error(self):
from datetime import datetime
mktime = timer2.mktime
scratch = [None]
def _overflow(x):
raise OverflowError(x)
def on_error(exc_info):
scratch[0] = exc_info
s = timer2.Schedule(on_error=on_error)
timer2.mktime = _overflow
try:
s.enter(timer2.Entry(lambda: None, (), {}),
eta=datetime.now())
s.enter(timer2.Entry(lambda: None, (), {}),
eta=None)
s.on_error = None
with self.assertRaises(OverflowError):
s.enter(timer2.Entry(lambda: None, (), {}),
eta=datetime.now())
finally:
timer2.mktime = mktime
exc = scratch[0]
self.assertIsInstance(exc, OverflowError)
class test_Timer(Case):
@skip_if_quick
def test_enter_after(self):
t = timer2.Timer()
done = [False]
def set_done():
done[0] = True
try:
t.apply_after(300, set_done)
while not done[0]:
time.sleep(0.1)
finally:
t.stop()
def test_exit_after(self):
t = timer2.Timer()
t.apply_after = Mock()
t.exit_after(300, priority=10)
t.apply_after.assert_called_with(300, sys.exit, 10)
def test_apply_interval(self):
t = timer2.Timer()
t.enter_after = Mock()
myfun = Mock()
t.apply_interval(30, myfun)
self.assertEqual(t.enter_after.call_count, 1)
args1, _ = t.enter_after.call_args_list[0]
msec1, tref1, _ = args1
self.assertEqual(msec1, 30)
tref1()
self.assertEqual(t.enter_after.call_count, 2)
args2, _ = t.enter_after.call_args_list[1]
msec2, tref2, _ = args2
self.assertEqual(msec2, 30)
tref2.cancelled = True
tref2()
self.assertEqual(t.enter_after.call_count, 2)
@patch("celery.utils.timer2.logger")
def test_apply_entry_error_handled(self, logger):
t = timer2.Timer()
t.schedule.on_error = None
fun = Mock()
fun.side_effect = ValueError()
t.apply_entry(fun)
self.assertTrue(logger.error.called)
@redirect_stdouts
def test_apply_entry_error_not_handled(self, stdout, stderr):
t = timer2.Timer()
t.schedule.on_error = Mock()
fun = Mock()
fun.side_effect = ValueError()
t.apply_entry(fun)
fun.assert_called_with()
self.assertFalse(stderr.getvalue())
@patch("os._exit")
def test_thread_crash(self, _exit):
t = timer2.Timer()
t._next_entry = Mock()
t._next_entry.side_effect = OSError(131)
t.run()
_exit.assert_called_with(1)
def test_gc_race_lost(self):
t = timer2.Timer()
t._is_stopped.set = Mock()
t._is_stopped.set.side_effect = TypeError()
t._is_shutdown.set()
t.run()
t._is_stopped.set.assert_called_with()