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authorMariusz Felisiak <felisiak.mariusz@gmail.com>2020-06-11 11:29:14 +0200
committerMariusz Felisiak <felisiak.mariusz@gmail.com>2020-06-12 07:21:19 +0200
commit42f5f2d76b19ee36ca659c6141b8a8197387c918 (patch)
treef25d6d67c839c0a32977b2cb5d6c27a47d551fab /tests/annotations/tests.py
parent45ec013116f5d3b9f6a626528e04276b78b688da (diff)
[3.1.x] Fixed #31659 -- Made ExpressionWrapper preserve output_field for combined expressions.
Regression in df32fd42b84cc6dbba173201f244491b0d154a63. Thanks Simon Charette for the review. Backport of aeb8996a6706cad3e96d8221760c1cb408ee7ed9 from master
Diffstat (limited to 'tests/annotations/tests.py')
-rw-r--r--tests/annotations/tests.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/annotations/tests.py b/tests/annotations/tests.py
index c1ac0516ac..9f35074934 100644
--- a/tests/annotations/tests.py
+++ b/tests/annotations/tests.py
@@ -170,6 +170,14 @@ class NonAggregateAnnotationTestCase(TestCase):
self.assertEqual(book.is_book, 1)
self.assertEqual(book.rating_count, 1)
+ def test_combined_expression_annotation_with_aggregation(self):
+ book = Book.objects.annotate(
+ combined=ExpressionWrapper(Value(3) * Value(4), output_field=IntegerField()),
+ rating_count=Count('rating'),
+ ).first()
+ self.assertEqual(book.combined, 12)
+ self.assertEqual(book.rating_count, 1)
+
def test_aggregate_over_annotation(self):
agg = Author.objects.annotate(other_age=F('age')).aggregate(otherage_sum=Sum('other_age'))
other_agg = Author.objects.aggregate(age_sum=Sum('age'))