def test_supervisor_shutdown(self):
""" Test shutdown joining/forcing with timeouts. """
sup = GreenProcessSupervisor()
sup.start()
import gevent
self.assertIs(time.sleep, gevent.hub.sleep)
# Test that it takes at least the given timeout to join_children, but not much more
proc_sleep_secs, proc_count = 0.01, 5
[sup.spawn(('green', time.sleep), proc_sleep_secs) for i in xrange(5)]
elapsed = sup.shutdown(2*proc_sleep_secs)
# MM, 1/12: Ok, I loosened the timing boundaries. Do the tests still work?
# Enabled 0.2s of slack for all tests
self.assertLess(elapsed - proc_sleep_secs, 0.2)
# this could be trouble
self.assertLess(elapsed, 0.2 + proc_sleep_secs*3)
# Test that a small timeout forcibly shuts down without waiting
wait_secs = 0.0001
[sup.spawn(('green', time.sleep), proc_sleep_secs) for i in xrange(5)]
elapsed = sup.shutdown(wait_secs)
self.assertLess(elapsed - wait_secs, 0.2)
# this could be trouble too
self.assertLess(elapsed, 0.2 + proc_sleep_secs)
# Test that no timeout waits until all finished
[sup.spawn(('green', time.sleep), proc_sleep_secs) for i in xrange(5)]
elapsed = sup.shutdown()
self.assertLess(elapsed - proc_sleep_secs, 0.2)
def test_supervisor(self):
self.counter = 0
sup = GreenProcessSupervisor()
sup.start()
proc = sup.spawn(('green', self.increment), amount=2)
self.assertEqual(self.counter, 0)
sup.join_children()
self.assertEqual(self.counter, 2)
def test_ensure_ready(self):
# GreenProcess by default will signal ready immediately, but we can still pass it through to make sure it's ok
sup = GreenProcessSupervisor()
sup.start()
proc = sup.spawn(('green', self.increment), amount=5)
sup.ensure_ready(proc)
self.assertEqual(self.counter, 5)
def test_ensure_ready_failed_proc(self):
# yes the error we print is intentional and annoying, sorry
def failboat():
self.increment(5, 1) # too many params, will fail
sup = GreenProcessSupervisor()
sup.start()
proc = sup.spawn(('green', failboat))
self.assertRaises(ContainerError, sup.ensure_ready, proc)
def test_ensure_ready_timeout(self):
# we have to make a process with a get_ready_event that never fires
class SlowGreenProcess(GreenProcess):
def get_ready_event(self):
from gevent.event import Event
return Event()
def target(self, *args, **kwargs):
return "The goggles, they do nothing"
sup = GreenProcessSupervisor()
sup.start()
proc = sup.spawn(SlowGreenProcess)
self.assertRaises(ContainerError, sup.ensure_ready, proc, timeout=1)