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-rw-r--r--tests/regressiontests/aggregation_regress/tests.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/regressiontests/aggregation_regress/tests.py b/tests/regressiontests/aggregation_regress/tests.py
index 51f439c5a1..786431420d 100644
--- a/tests/regressiontests/aggregation_regress/tests.py
+++ b/tests/regressiontests/aggregation_regress/tests.py
@@ -481,6 +481,14 @@ class AggregationTests(TestCase):
lambda b: b.name
)
+ def test_duplicate_alias(self):
+ # Regression for #11256 - duplicating a default alias raises ValueError.
+ self.assertRaises(ValueError, Book.objects.all().annotate, Avg('authors__age'), authors__age__avg=Avg('authors__age'))
+
+ def test_field_name_conflict(self):
+ # Regression for #11256 - providing an aggregate name that conflicts with a field name on the model raises ValueError
+ self.assertRaises(ValueError, Author.objects.annotate, age=Avg('friends__age'))
+
def test_pickle(self):
# Regression for #10197 -- Queries with aggregates can be pickled.
# First check that pickling is possible at all. No crash = success