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-rw-r--r--tests/modeltests/serializers/tests.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/modeltests/serializers/tests.py b/tests/modeltests/serializers/tests.py
index 721ca09282..309a83e8b4 100644
--- a/tests/modeltests/serializers/tests.py
+++ b/tests/modeltests/serializers/tests.py
@@ -178,6 +178,19 @@ class SerializersTestBase(object):
mv_obj = obj_list[0].object
self.assertEqual(mv_obj.title, movie_title)
+ def test_serialize_superfluous_queries(self):
+ """Ensure no superfluous queries are made when serializing ForeignKeys
+
+ #17602
+ """
+ ac = Actor(name='Actor name')
+ ac.save()
+ mv = Movie(title='Movie title', actor_id=ac.pk)
+ mv.save()
+
+ with self.assertNumQueries(0):
+ serial_str = serializers.serialize(self.serializer_name, [mv])
+
def test_serialize_with_null_pk(self):
"""
Tests that serialized data with no primary key results