def METHOD_NAME(sandbox, temp_cache):
    os.environ["PINT_CLOCK_OVERRIDE"] = str(sandbox.override_dir)
    c = find_clock_file(sandbox.name, format="tempo2", url_base=sandbox.repo_uri)
    assert c.time.mjd[0] == sandbox.override_clock.time.mjd[0]
    # FIXME: how to test that a warning is emitted?