test_sort.py 文件源码

def test_sort_from_request_ASC(self):
        """Should sort variants wrt. a specific column
        - string, int or float -, from smaller to bigger or in alphabetical order.
        Compare with manual sort.
        Frequencies could have None values, which is why we use this Sort.
        """
        for field in ['chrom','start','aaf_1kg_all']:
            request = RequestFactory().get('', {'order_by': '{},ASC'.format(field)})
            order = sort_from_request(request)
            self.assertIsInstance(order, Sort)
            self.assertEqual(order.key, field)
            self.assertEqual(order.reverse, False)
            var = self.variants.order_by(order.key, order.reverse)
            col0 = [getattr(v,field) for v in self.variants]
            col = [getattr(v,field) for v in var]
            col0_nonull = [x for x in col0 if x is not None]
            col0 = [None]*(len(col)-len(col0_nonull)) + sorted(col0_nonull)
            self.assertEqual(col0, col)