def test_parse_rank_score():
    ## GIVEN a rank score string on genmod format
    rank_scores_info = "123:10"
    variant_score = 10.0
    family_id = "123"
    ## WHEN parsing the rank score
    parsed_rank_score = parse_rank_score(rank_scores_info, family_id)
    ## THEN assert that the correct rank score is parsed
    assert variant_score == parsed_rank_score