def test_query_expression_where_clause_generation(self):
        query1 = self.table.objects(self.table.column('test_id') == 5)
        self.assertEqual(len(query1._where), 1)
        where = query1._where[0]
        self.assertEqual(where.field, 'test_id')
        self.assertEqual(where.value, 5)

        query2 = query1.filter(self.table.column('expected_result') >= 1)
        self.assertEqual(len(query2._where), 2)

        where = query2._where[0]
        self.assertEqual(where.field, 'test_id')
        self.assertIsInstance(where.operator, EqualsOperator)
        self.assertEqual(where.value, 5)

        where = query2._where[1]
        self.assertEqual(where.field, 'expected_result')
        self.assertIsInstance(where.operator, GreaterThanOrEqualOperator)
        self.assertEqual(where.value, 1)
Returns the pointer argument's by-refernece value.
dataset/ETHPy150Open datastax/python-driver/tests/integration/cqlengine/query/test_named.py/TestQuerySetOperation.test_query_expression_where_clause_generation--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/gis/gdal/prototypes/errcheck.py/arg_byref