def second_lock(self):
lock = FileLock(self.testfile, timeout=0)
try:
lock.acquire()
except FileLockException:
sys.exit(1)
lock.release()
def test_stale(self):
"""Handling of stale lock files."""
lock = FileLock(self.testfile)
lockfile = open(lock.lockfile, 'w')
lock.acquire()
lockfile.close()
lock.release()
def test_double(self):
"""Test of double locking."""
lock1 = FileLock(self.testfile)
lock2 = FileLock(self.testfile, timeout=0)
lock1.acquire()
self.assertRaises(FileLockException, lock2.acquire)
lock1.release()
lock2.acquire()
lock2.release()
def test_lock(self):
"""Basic locking test."""
lock = FileLock(self.testfile)
lock.acquire()
self.assertTrue(lock.is_locked)
self.assertTrue(lock.check_lock())
lock.release()
self.assertFalse(lock.is_locked)
self.assertFalse(lock.check_lock())
def test_process(self):
"""Test of double locking."""
lock = FileLock(self.testfile)
lock.acquire()
try:
process = Process(target=self.second_lock)
process.start()
process.join()
self.assertEqual(process.exitcode, 1)
finally:
lock.release()
process = Process(target=self.second_lock)
process.start()
process.join()
self.assertEqual(process.exitcode, 0)