'run_xsslint finds fewer violations than are allowed'

@patch.object(pavelib.quality, '_write_metric')
@patch.object(pavelib.quality, '_prepare_report_dir')
@patch.object(pavelib.quality, '_get_xsslint_counts')
def test_xsslint_under_limit(self, _mock_counts, _mock_report_dir, _mock_write_metric):

    _mock_counts.return_value = {'total': 4}
    call_task('pavelib.quality.run_xsslint', options={'thresholds': '{"total":    5}'})
