diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/custom_lookups/tests.py | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/custom_lookups/tests.py b/tests/custom_lookups/tests.py index bdb27a224a..9661aebc49 100644 --- a/tests/custom_lookups/tests.py +++ b/tests/custom_lookups/tests.py @@ -240,6 +240,23 @@ class LookupTests(TestCase): models.DateField._unregister_lookup(YearTransform) models.DateField._unregister_lookup(YearTransform, custom_transform_name) + def test_custom_exact_lookup_none_rhs(self): + """ + __exact=None is transformed to __isnull=True if a custom lookup class + with lookup_name != 'exact' is registered as the `exact` lookup. + """ + class CustomExactLookup(models.Lookup): + lookup_name = 'somecustomlookup' + + field = Author._meta.get_field('birthdate') + OldExactLookup = field.get_lookup('exact') + author = Author.objects.create(name='author', birthdate=None) + try: + type(field).register_lookup(Exactly, 'exact') + self.assertEqual(Author.objects.get(birthdate__exact=None), author) + finally: + type(field).register_lookup(OldExactLookup, 'exact') + def test_basic_lookup(self): a1 = Author.objects.create(name='a1', age=1) a2 = Author.objects.create(name='a2', age=2) |