@pytest.mark.parametrize('line, expected', sample_gd_lines)
def test_parse_mutation(parser, line, expected):
    result = parser.parse_line(line)
    assert (result == expected)
@pytest.mark.parametrize('line, expected', sample_gd_lines)
def test_parse_mutation(parser, line, expected):
    result = parser.parse_line(line)
    assert (result == expected)