forked from celery/celery
-
Notifications
You must be signed in to change notification settings - Fork 40
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
263 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Original file line | Diff line number | Diff line change |
---|---|---|---|
@@ -0,0 +1,263 @@ | |||
from __future__ import absolute_import | |||
from __future__ import with_statement | |||
|
|||
from celery.worker.hub import ( | |||
DummyLock, | |||
BoundedSemaphore, | |||
Hub, | |||
) | |||
|
|||
from mock import Mock, call, patch | |||
|
|||
from celery.tests.utils import Case | |||
|
|||
|
|||
class File(object): | |||
|
|||
def __init__(self, fd): | |||
self.fd = fd | |||
|
|||
def fileno(self): | |||
return self.fd | |||
|
|||
def __eq__(self, other): | |||
if isinstance(other, File): | |||
return self.fd == other.fd | |||
return NotImplemented | |||
|
|||
|
|||
class test_DummyLock(Case): | |||
|
|||
def test_context(self): | |||
mutex = DummyLock() | |||
with mutex: | |||
pass | |||
|
|||
|
|||
class test_BoundedSemaphore(Case): | |||
|
|||
def test_acquire_release(self): | |||
x = BoundedSemaphore(2) | |||
|
|||
c1 = Mock() | |||
x.acquire(c1, 1); | |||
self.assertEqual(x.value, 1) | |||
c1.assert_called_with(1) | |||
|
|||
c2 = Mock() | |||
x.acquire(c2, 2) | |||
self.assertEqual(x.value, 0) | |||
c2.assert_called_with(2) | |||
|
|||
c3 = Mock() | |||
x.acquire(c3, 3) | |||
self.assertEqual(x.value, 0) | |||
self.assertFalse(c3.called) | |||
|
|||
x.release() | |||
self.assertEqual(x.value, 1) | |||
c3.assert_called_with(3) | |||
|
|||
def test_bounded(self): | |||
x = BoundedSemaphore(2) | |||
for i in xrange(100): | |||
x.release() | |||
self.assertEqual(x.value, 2) | |||
|
|||
def test_grow_shrink(self): | |||
x = BoundedSemaphore(1) | |||
self.assertEqual(x.initial_value, 1) | |||
cb1 = Mock() | |||
x.acquire(cb1, 1) | |||
cb1.assert_called_with(1) | |||
self.assertEqual(x.value, 0) | |||
|
|||
cb2 = Mock() | |||
x.acquire(cb2, 2) | |||
self.assertFalse(cb2.called) | |||
self.assertEqual(x.value, 0) | |||
|
|||
cb3 = Mock() | |||
x.acquire(cb3, 3) | |||
self.assertFalse(cb3.called) | |||
|
|||
x.grow(2) | |||
cb2.assert_called_with(2) | |||
cb3.assert_called_with(3) | |||
self.assertEqual(x.value, 3) | |||
self.assertEqual(x.initial_value, 3) | |||
|
|||
self.assertFalse(x._waiting) | |||
x.grow(3) | |||
for i in xrange(x.initial_value): | |||
self.assertTrue(x.acquire(Mock())) | |||
self.assertFalse(x.acquire(Mock())) | |||
x.clear() | |||
|
|||
x.shrink(3) | |||
for i in xrange(x.initial_value): | |||
self.assertTrue(x.acquire(Mock())) | |||
self.assertFalse(x.acquire(Mock())) | |||
self.assertEqual(x.value, 0) | |||
|
|||
for i in xrange(100): | |||
x.release() | |||
self.assertEqual(x.value, x.initial_value) | |||
|
|||
def test_clear(self): | |||
x = BoundedSemaphore(10) | |||
for i in xrange(11): | |||
x.acquire(Mock()) | |||
self.assertTrue(x._waiting) | |||
self.assertEqual(x.value, 0) | |||
|
|||
x.clear() | |||
self.assertFalse(x._waiting) | |||
self.assertEqual(x.value, x.initial_value) | |||
|
|||
|
|||
class test_Hub(Case): | |||
|
|||
@patch("kombu.utils.eventio.poll") | |||
def test_start_stop(self, poll): | |||
hub = Hub() | |||
hub.start() | |||
poll.assert_called_with() | |||
|
|||
hub.stop() | |||
hub.poller.close.assert_called_with() | |||
|
|||
def test_init(self): | |||
hub = Hub() | |||
cb1 = Mock() | |||
cb2 = Mock() | |||
hub.on_init.extend([cb1, cb2]) | |||
|
|||
hub.init() | |||
cb1.assert_called_with(hub) | |||
cb2.assert_called_with(hub) | |||
|
|||
def test_fire_timers(self): | |||
hub = Hub() | |||
hub.timer = Mock() | |||
hub.timer._queue = [] | |||
self.assertEqual(hub.fire_timers(min_delay=42.324, | |||
max_delay=32.321), 32.321) | |||
|
|||
hub.timer._queue = [1] | |||
hub.scheduler = Mock() | |||
hub.scheduler.next.return_value = 3.743, None | |||
self.assertEqual(hub.fire_timers(), 3.743) | |||
|
|||
e1, e2, e3 = Mock(), Mock(), Mock() | |||
entries = [e1, e2, e3] | |||
def se(): | |||
if entries: | |||
return None, entries.pop() | |||
return 3.982, None | |||
hub.scheduler.next = Mock() | |||
hub.scheduler.next.side_effect = se | |||
|
|||
self.assertEqual(hub.fire_timers(max_timers=10), 3.982) | |||
hub.timer.apply_entry.assert_has_calls(map(call, [e3, e2, e1])) | |||
|
|||
entries[:] = [Mock() for _ in xrange(11)] | |||
keep = list(entries) | |||
self.assertEqual(hub.fire_timers(max_timers=10, min_delay=1.13), 1.13) | |||
hub.timer.apply_entry.assert_has_calls(map(call, | |||
reversed(keep[1:]))) | |||
self.assertEqual(hub.fire_timers(max_timers=10), 3.982) | |||
hub.timer.apply_entry.assert_has_calls(call(keep[0])) | |||
|
|||
def test_update_readers(self): | |||
hub = Hub() | |||
P = hub.poller = Mock() | |||
|
|||
read_A = Mock() | |||
read_B = Mock() | |||
hub.update_readers({10: read_A, File(11): read_B}) | |||
|
|||
P.register.assert_has_calls([ | |||
call(10, hub.READ | hub.ERR), | |||
call(File(11), hub.READ | hub.ERR), | |||
], any_order=True) | |||
|
|||
self.assertIs(hub.readers[10], read_A) | |||
self.assertIs(hub.readers[11], read_B) | |||
|
|||
hub.remove(10) | |||
self.assertNotIn(10, hub.readers) | |||
hub.remove(File(11)) | |||
self.assertNotIn(11, hub.readers) | |||
P.unregister.assert_has_calls([ | |||
call(10), call(File(11)), | |||
]) | |||
|
|||
def test_can_remove_unknown_fds(self): | |||
hub = Hub() | |||
hub.poller = Mock() | |||
hub.remove(30) | |||
hub.remove(File(301)) | |||
|
|||
def test_remove__unregister_raises(self): | |||
hub = Hub() | |||
hub.poller = Mock() | |||
hub.poller.unregister.side_effect = OSError() | |||
|
|||
hub.remove(313) | |||
|
|||
def test_update_writers(self): | |||
hub = Hub() | |||
P = hub.poller = Mock() | |||
|
|||
write_A = Mock() | |||
write_B = Mock() | |||
hub.update_writers({20: write_A, File(21): write_B}) | |||
|
|||
P.register.assert_has_calls([ | |||
call(20, hub.WRITE), | |||
call(File(21), hub.WRITE), | |||
], any_order=True) | |||
|
|||
self.assertIs(hub.writers[20], write_A) | |||
self.assertIs(hub.writers[21], write_B) | |||
|
|||
hub.remove(20) | |||
self.assertNotIn(20, hub.writers) | |||
hub.remove(File(21)) | |||
self.assertNotIn(21, hub.writers) | |||
P.unregister.assert_has_calls([ | |||
call(20), call(File(21)), | |||
]) | |||
|
|||
def test_enter__exit(self): | |||
hub = Hub() | |||
P = hub.poller = Mock() | |||
hub.init = Mock() | |||
|
|||
on_close = Mock() | |||
hub.on_close.append(on_close) | |||
|
|||
with hub: | |||
hub.init.assert_called_with() | |||
|
|||
read_A = Mock() | |||
read_B = Mock() | |||
hub.update_readers({10: read_A, File(11): read_B}) | |||
write_A = Mock() | |||
write_B = Mock() | |||
hub.update_writers({20: write_A, File(21): write_B}) | |||
self.assertTrue(hub.readers) | |||
self.assertTrue(hub.writers) | |||
self.assertFalse(hub.readers) | |||
self.assertFalse(hub.writers) | |||
|
|||
P.unregister.assert_has_calls([ | |||
call(10), call(11), call(20), call(21), | |||
], any_order=True) | |||
|
|||
on_close.assert_called_with(hub) | |||
|
|||
def test_scheduler_property(self): | |||
hub = Hub(timer=[1, 2, 3]) | |||
self.assertEqual(list(hub.scheduler), [1, 2, 3]) |