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Fixed #31767 -- Fixed QuerySet.none() on combined queryset.

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Mariusz Felisiak 2020-07-07 12:15:05 +02:00 • committed by GitHub
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7
tests/queries/test_qs_combinators.py
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@ -51,6 +51,13 @@ class QuerySetSetOperationTests(TestCase):
self.assertEqual(len(list(qs1.union(qs2, all=True))), 20)
self.assertEqual(len(list(qs1.union(qs2))), 10)
def test_union_none(self):
qs1 = Number.objects.filter(num__lte=1)
qs2 = Number.objects.filter(num__gte=8)
qs3 = qs1.union(qs2)
self.assertSequenceEqual(qs3.none(), [])
self.assertNumbersEqual(qs3, [0, 1, 8, 9], ordered=False)
@skipUnlessDBFeature('supports_select_intersection')
def test_intersection_with_empty_qs(self):
qs1 = Number.objects.all()