def push_changelog_file(conn_api, changelog_file):
    """
    Fixture to push to the FIRE archive a mock CHANGELOG to be used with the CurrentTree.run function

    Returns
    -------
    FIRE path of the object that has been pushed
    """
    conn_api.push_object(fileO=changelog_file,
                         fire_path="ctree/MOCK_CHANGELOG",
                         dry=False)

    return "ctree/MOCK_CHANGELOG"