def test_key_lock_creates(self):
with TempDir() as cache_dir, TempDir() as d:
cache = Directory(path=cache_dir)
key = 'foo_key'
self.assertFalse(cache.exists(key))
with cache.lease(key, create=True):
self.assertTrue(cache.exists(key))
self.assertTrue(cache.exists(key))
self.assertTrue(os.listdir(cache_dir))
def test_key_lock_unlock(self):
with TempDir() as cache_dir, TempDir() as d:
cache = Directory(path=cache_dir)
foo_file = os.path.join(d, 'foo_file')
with open(foo_file, 'w') as f:
f.write('foo')
key = 'foo_key'
cache.store_file(foo_file, key)
self.assertTrue(self.try_lock_from_another_process(cache_dir, key))
with cache.lease(key):
self.assertFalse(self.try_lock_from_another_process(cache_dir, key))
self.assertTrue(self.try_lock_from_another_process(cache_dir, key))
