def METHOD_NAME(self, exchange, course_dir):
    self._copy_file(join("files", "test.ipynb"), join(course_dir, "release", "ps1", "p1.ipynb"))
    run_nbgrader([
        "release_assignment", "ps1",
        "--course", "abc101",
        "--Exchange.root={}".format(exchange)
    ])
    assert os.path.isfile(join(exchange, "abc101", "outbound", "ps1", "p1.ipynb"))