From 7ba6ebe9149ae38257d70100e8bfbfd0da189862 Mon Sep 17 00:00:00 2001 From: Albert Defler Date: Fri, 14 Jan 2022 12:44:17 +0000 Subject: Fixed #19580 -- Unified behavior of reverse foreign key and many-to-many relations for unsaved instances. --- tests/null_queries/tests.py | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'tests/null_queries') diff --git a/tests/null_queries/tests.py b/tests/null_queries/tests.py index 4c5c3bbe5c..828c68d921 100644 --- a/tests/null_queries/tests.py +++ b/tests/null_queries/tests.py @@ -44,9 +44,14 @@ class NullQueriesTests(TestCase): with self.assertRaisesMessage(ValueError, "Cannot use None as a query value"): Choice.objects.filter(id__gt=None) - # Related managers use __exact=None implicitly if the object hasn't been saved. - p2 = Poll(question="How?") - self.assertEqual(repr(p2.choice_set.all()), "") + def test_unsaved(self): + poll = Poll(question="How?") + msg = ( + "'Poll' instance needs to have a primary key value before this " + "relationship can be used." + ) + with self.assertRaisesMessage(ValueError, msg): + poll.choice_set.all() def test_reverse_relations(self): """ -- cgit v1.2.1