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import random
import pytest
import portalocker
from portalocker import utils
@pytest.mark.parametrize('timeout', [None, 0, 0.001])
@pytest.mark.parametrize('check_interval', [None, 0, 0.0005])
def test_bounded_semaphore(timeout, check_interval, monkeypatch):
n = 2
name = random.random()
monkeypatch.setattr(utils, 'DEFAULT_TIMEOUT', 0.0001)
monkeypatch.setattr(utils, 'DEFAULT_CHECK_INTERVAL', 0.0005)
semaphore_a = portalocker.BoundedSemaphore(n, name=name, timeout=timeout)
semaphore_b = portalocker.BoundedSemaphore(n, name=name, timeout=timeout)
semaphore_c = portalocker.BoundedSemaphore(n, name=name, timeout=timeout)
semaphore_a.acquire(timeout=timeout)
semaphore_b.acquire()
with pytest.raises(portalocker.AlreadyLocked):
semaphore_c.acquire(check_interval=check_interval, timeout=timeout)
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