Method pause_first

pkg/pypi/tests/test_cli.py:243–248

(source, destination)

            read_lock_owner = _cli._read_runtime_lock_owner

            def pause_first(source, destination):
                replace(source, destination)
                if Path(destination) == directory / binary_name:
                    first_holds_lock.set()
                    if not allow_first.wait(5):
                        raise RuntimeError("test did not release first publisher")

            def observe_waiter(lock_path):
                if threading.current_thread().name == "publisher-second":