| 1 | diff --git a/tests/defer/tests.py b/tests/defer/tests.py
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| 2 | index 266a851..eaef66b 100644
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| 3 | --- a/tests/defer/tests.py
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| 4 | +++ b/tests/defer/tests.py
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| 5 | @@ -3,7 +3,7 @@ from __future__ import unicode_literals
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| 6 | from django.db.models.query_utils import DeferredAttribute, InvalidQuery
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| 7 | from django.test import TestCase
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| 8 |
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| 9 | -from .models import Secondary, Primary, Child, BigChild, ChildProxy
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| 10 | +from .models import Secondary, Primary, Child, BigChild, ChildProxy, PrimaryProxy
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| 11 |
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| 12 |
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| 13 | class DeferTests(TestCase):
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| 14 | @@ -169,6 +169,14 @@ class DeferTests(TestCase):
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| 15 | self.assertEqual(child.name, 'p1')
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| 16 | self.assertEqual(child.value, 'xx')
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| 17 |
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| 18 | + def test_defer_proxy_related_field(self):
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| 19 | + related = Secondary.objects.create(first='x1', second='x2')
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| 20 | + PrimaryProxy.objects.create(name='p1', value='xx', related=related)
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| 21 | + objs = PrimaryProxy.objects.all().select_related().only('related__first')
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| 22 | + self.assertEqual(len(objs), 1)
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| 23 | + obj = objs[0]
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| 24 | + self.assert_delayed(obj, 3)
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| 25 | +
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| 26 | def test_defer_inheritance_pk_chaining(self):
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| 27 | """
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| 28 | When an inherited model is fetched from the DB, its PK is also fetched.
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