1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
from __future__ import absolute_import, unicode_literals
from datetime import datetime
from itertools import count
from time import time
from celery import states
from celery.events import Event as _Event
from celery.events.state import State, Worker, Task
from celery.utils import gen_unique_id
from djcelery import celery
from djcelery import snapshot
from djcelery import models
from djcelery.utils import make_aware
from djcelery.tests.utils import unittest
from djcelery.compat import unicode
_next_id_gen = count(0)
_next_id = lambda: next(_next_id_gen)
_next_clock_gen = count(1)
_next_clock = lambda: next(_next_clock_gen)
def Event(*args, **kwargs):
kwargs.setdefault('clock', _next_clock())
kwargs.setdefault('local_received', time())
return _Event(*args, **kwargs)
def create_task(worker, **kwargs):
d = dict(uuid=gen_unique_id(),
name='djcelery.unittest.task{0}'.format(_next_id()),
worker=worker)
return Task(**dict(d, **kwargs))
class test_Camera(unittest.TestCase):
Camera = snapshot.Camera
def setUp(self):
self.state = State()
self.cam = self.Camera(self.state)
def test_constructor(self):
cam = self.Camera(State())
self.assertTrue(cam.state)
self.assertTrue(cam.freq)
self.assertTrue(cam.cleanup_freq)
self.assertTrue(cam.logger)
def test_get_heartbeat(self):
worker = Worker(hostname='fuzzie')
self.assertIsNone(self.cam.get_heartbeat(worker))
t1 = time()
t2 = time()
t3 = time()
for t in t1, t2, t3:
worker.event('heartbeat', t, t, {})
self.state.workers[worker.hostname] = worker
self.assertEqual(self.cam.get_heartbeat(worker),
make_aware(datetime.fromtimestamp(t3)))
def test_handle_worker(self):
worker = Worker(hostname='fuzzie')
worker.event('online', time(), time(), {})
self.cam._last_worker_write.clear()
m = self.cam.handle_worker((worker.hostname, worker))
self.assertTrue(m)
self.assertTrue(m.hostname)
self.assertTrue(m.last_heartbeat)
self.assertTrue(m.is_alive())
self.assertEqual(unicode(m), unicode(m.hostname))
self.assertTrue(repr(m))
def test_handle_task_received(self):
worker = Worker(hostname='fuzzie')
worker.event('oneline', time(), time(), {})
self.cam.handle_worker((worker.hostname, worker))
task = create_task(worker)
task.event('received', time(), time(), {})
self.assertEqual(task.state, 'RECEIVED')
mt = self.cam.handle_task((task.uuid, task))
self.assertEqual(mt.name, task.name)
self.assertTrue(unicode(mt))
self.assertTrue(repr(mt))
mt.eta = celery.now()
self.assertIn('eta', unicode(mt))
self.assertIn(mt, models.TaskState.objects.active())
def test_handle_task(self):
worker1 = Worker(hostname='fuzzie')
worker1.event('online', time(), time(), {})
mw = self.cam.handle_worker((worker1.hostname, worker1))
task1 = create_task(worker1)
task1.event('received', time(), time(), {})
mt = self.cam.handle_task((task1.uuid, task1))
self.assertEqual(mt.worker, mw)
worker2 = Worker(hostname=None)
task2 = create_task(worker2)
task2.event('received', time(), time(), {})
mt = self.cam.handle_task((task2.uuid, task2))
self.assertIsNone(mt.worker)
task1.event('succeeded', time(), time(), {'result': 42})
self.assertEqual(task1.state, states.SUCCESS)
self.assertEqual(task1.result, 42)
mt = self.cam.handle_task((task1.uuid, task1))
self.assertEqual(mt.name, task1.name)
self.assertEqual(mt.result, 42)
task3 = create_task(worker1, name=None)
task3.event('revoked', time(), time(), {})
mt = self.cam.handle_task((task3.uuid, task3))
self.assertIsNone(mt)
def assertExpires(self, dec, expired, tasks=10):
worker = Worker(hostname='fuzzie')
worker.event('online', time(), time(), {})
for total in range(tasks):
task = create_task(worker)
task.event('received', time() - dec, time() - dec, {})
task.event('succeeded', time() - dec, time() - dec, {'result': 42})
self.assertTrue(task.name)
self.assertTrue(self.cam.handle_task((task.uuid, task)))
self.assertEqual(self.cam.on_cleanup(), expired)
def test_on_cleanup_expires(self, dec=332000):
self.assertExpires(dec, 10)
def test_on_cleanup_does_not_expire_new(self, dec=0):
self.assertExpires(dec, 0)
def test_on_shutter(self):
state = self.state
cam = self.cam
ws = ['worker1.ex.com', 'worker2.ex.com', 'worker3.ex.com']
uus = [gen_unique_id() for i in range(50)]
events = [Event('worker-online', hostname=ws[0]),
Event('worker-online', hostname=ws[1]),
Event('worker-online', hostname=ws[2]),
Event('task-received',
uuid=uus[0], name='A', hostname=ws[0]),
Event('task-started',
uuid=uus[0], name='A', hostname=ws[0]),
Event('task-received',
uuid=uus[1], name='B', hostname=ws[1]),
Event('task-revoked',
uuid=uus[2], name='C', hostname=ws[2])]
for event in events:
event['local_received'] = time()
state.event(event)
cam.on_shutter(state)
for host in ws:
worker = models.WorkerState.objects.get(hostname=host)
self.assertTrue(worker.is_alive())
t1 = models.TaskState.objects.get(task_id=uus[0])
self.assertEqual(t1.state, 'STARTED')
self.assertEqual(t1.name, 'A')
t2 = models.TaskState.objects.get(task_id=uus[1])
self.assertEqual(t2.state, 'RECEIVED')
t3 = models.TaskState.objects.get(task_id=uus[2])
self.assertEqual(t3.state, 'REVOKED')
events = [Event('task-succeeded',
uuid=uus[0], hostname=ws[0], result=42),
Event('task-failed',
uuid=uus[1], exception="KeyError('foo')",
hostname=ws[1]),
Event('worker-offline', hostname=ws[0])]
list(map(state.event, events))
cam._last_worker_write.clear()
cam.on_shutter(state)
w1 = models.WorkerState.objects.get(hostname=ws[0])
self.assertFalse(w1.is_alive())
t1 = models.TaskState.objects.get(task_id=uus[0])
self.assertEqual(t1.state, 'SUCCESS')
self.assertEqual(t1.result, '42')
self.assertEqual(t1.worker, w1)
t2 = models.TaskState.objects.get(task_id=uus[1])
self.assertEqual(t2.state, 'FAILURE')
self.assertEqual(t2.result, "KeyError('foo')")
self.assertEqual(t2.worker.hostname, ws[1])
cam.on_shutter(state)
|
