Ticket #27632: test_annotation_with_value.diff

tests/aggregation_regress/tests.py

@@ -107 +107 @@
         for attr, value in six.iteritems(kwargs):
             self.assertEqual(getattr(obj, attr), value)
 
+    def test_annotation_with_value(self):
+        values = (
+            Book.objects
+            .filter(name='Practical Django Projects')
+            .annotate(discount_price=F('price') * 0.75)
+            .values('discount_price')
+            .annotate(sum_discount=Sum('discount_price'))
+        )
+        self.assertEqual(
+            values,
+            {'discount_price': Decimal('22.2675'), 'sum_discount': Decimal('22.2675')},
+        )
+
     def test_aggregates_in_where_clause(self):
         """
         Regression test for #12822: DatabaseError: aggregates not allowed in