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import pytest
from ase.utils import Lock
def test_cannot_acquire_lock_twice(tmp_path):
"""Test timeout on Lock.acquire()."""
lock = Lock(tmp_path / 'lockfile', timeout=0.3)
with lock:
with pytest.raises(TimeoutError):
with lock:
...
def test_lock_close_file_descriptor(tmp_path):
"""Test that lock file descriptor is properly closed."""
# The choice of timeout=1.0 is arbitrary but we don't want to use
# something that is too large since it could mean that the test
# takes long to fail.
lock = Lock(tmp_path / 'lockfile', timeout=1.0)
with lock:
assert not lock.fd.closed
assert lock.fd.closed
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