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
|
import _thread
import logging
import random
import time
import pytest
from redis import client
from redis import exceptions
import portalocker
from portalocker import redis
from portalocker import utils
logger = logging.getLogger(__name__)
try:
client.Redis().ping()
except (exceptions.ConnectionError, ConnectionRefusedError):
pytest.skip('Unable to connect to redis', allow_module_level=True)
@pytest.fixture(autouse=True)
def set_redis_timeouts(monkeypatch):
monkeypatch.setattr(utils, 'DEFAULT_TIMEOUT', 0.0001)
monkeypatch.setattr(utils, 'DEFAULT_CHECK_INTERVAL', 0.0005)
monkeypatch.setattr(redis, 'DEFAULT_UNAVAILABLE_TIMEOUT', 0.01)
monkeypatch.setattr(redis, 'DEFAULT_THREAD_SLEEP_TIME', 0.001)
monkeypatch.setattr(_thread, 'interrupt_main', lambda: None)
def test_redis_lock():
channel = str(random.random())
lock_a = redis.RedisLock(channel)
lock_a.acquire(fail_when_locked=True)
time.sleep(0.01)
lock_b = redis.RedisLock(channel)
try:
with pytest.raises(portalocker.AlreadyLocked):
lock_b.acquire(fail_when_locked=True)
finally:
lock_a.release()
lock_a.connection.close()
@pytest.mark.parametrize('timeout', [None, 0, 0.001])
@pytest.mark.parametrize('check_interval', [None, 0, 0.0005])
def test_redis_lock_timeout(timeout, check_interval):
connection = client.Redis()
channel = str(random.random())
lock_a = redis.RedisLock(channel)
lock_a.acquire(timeout=timeout, check_interval=check_interval)
lock_b = redis.RedisLock(channel, connection=connection)
with pytest.raises(portalocker.AlreadyLocked):
try:
lock_b.acquire(timeout=timeout, check_interval=check_interval)
finally:
lock_a.release()
lock_a.connection.close()
def test_redis_lock_context():
channel = str(random.random())
lock_a = redis.RedisLock(channel, fail_when_locked=True)
with lock_a:
time.sleep(0.01)
lock_b = redis.RedisLock(channel, fail_when_locked=True)
with pytest.raises(portalocker.AlreadyLocked):
with lock_b:
pass
def test_redis_relock():
channel = str(random.random())
lock_a = redis.RedisLock(channel, fail_when_locked=True)
with lock_a:
time.sleep(0.01)
with pytest.raises(AssertionError):
lock_a.acquire()
time.sleep(0.01)
lock_a.release()
if __name__ == '__main__':
test_redis_lock()
|
