How to use maybe_delete_a_numbered_dir method in Pytest

Best Python code snippet using pytest

pathlib.py

Source:pathlib.py Github

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...125 lock_path.unlink()126 except (OSError, IOError):127 pass128 return register(cleanup_on_exit)129def maybe_delete_a_numbered_dir(path):130 """removes a numbered directory if its lock can be obtained and it does not seem to be in use"""131 lock_path = None132 try:133 lock_path = create_cleanup_lock(path)134 parent = path.parent135 garbage = parent.joinpath("garbage-{}".format(uuid.uuid4()))136 path.rename(garbage)137 rmtree(garbage, force=True)138 except (OSError, EnvironmentError):139 # known races:140 # * other process did a cleanup at the same time141 # * deletable folder was found142 # * process cwd (Windows)143 return144 finally:145 # if we created the lock, ensure we remove it even if we failed146 # to properly remove the numbered dir147 if lock_path is not None:148 try:149 lock_path.unlink()150 except (OSError, IOError):151 pass152def ensure_deletable(path, consider_lock_dead_if_created_before):153 """checks if a lock exists and breaks it if its considered dead"""154 if path.is_symlink():155 return False156 lock = get_lock_path(path)157 if not lock.exists():158 return True159 try:160 lock_time = lock.stat().st_mtime161 except Exception:162 return False163 else:164 if lock_time < consider_lock_dead_if_created_before:165 lock.unlink()166 return True167 else:168 return False169def try_cleanup(path, consider_lock_dead_if_created_before):170 """tries to cleanup a folder if we can ensure it's deletable"""171 if ensure_deletable(path, consider_lock_dead_if_created_before):172 maybe_delete_a_numbered_dir(path)173def cleanup_candidates(root, prefix, keep):174 """lists candidates for numbered directories to be removed - follows py.path"""175 max_existing = max(map(parse_num, find_suffixes(root, prefix)), default=-1)176 max_delete = max_existing - keep177 paths = find_prefixed(root, prefix)178 paths, paths2 = itertools.tee(paths)179 numbers = map(parse_num, extract_suffixes(paths2, prefix))180 for path, number in zip(paths, numbers):181 if number <= max_delete:182 yield path183def cleanup_numbered_dir(root, prefix, keep, consider_lock_dead_if_created_before):184 """cleanup for lock driven numbered directories"""185 for path in cleanup_candidates(root, prefix, keep):186 try_cleanup(path, consider_lock_dead_if_created_before)...

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test_pathlib.py

Source:test_pathlib.py Github

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...64 def renamed_failed(*args):65 raise OSError("access denied")66 monkeypatch.setattr(Path, "rename", renamed_failed)67 lock_path = get_lock_path(path)68 maybe_delete_a_numbered_dir(path)...

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