m test import support
            from test.support import os_helper
            with os_helper.temp_cwd() as temp_path:
                pid = os.fork()
                if pid != 0:
                    # parent process

                    # wait for the child to terminate
                    support.wait_process(pid, exitcode=0)

                    # Make sure that temp_path is still present. When the child
                    # process leaves the 'temp_cwd'-context, the __exit__()-
                    # method of the context must not remove the temporary
                    # directory.
                    if not os.path.isdir(temp_path):
                        raise AssertionError("Child removed temp_path.")
        N)