diff --git a/tests/postgres_tests/test_hstore.py b/tests/postgres_tests/test_hstore.py
index ed88e2f..8c4172f 100644
a
|
b
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class TestQuerying(PostgresSQLTestCase):
|
114 | 114 | self.objs[:3] |
115 | 115 | ) |
116 | 116 | |
| 117 | def test_key_isnull(self): |
| 118 | obj = HStoreModel.objects.create(field={'a': None}) |
| 119 | self.assertSequenceEqual( |
| 120 | HStoreModel.objects.filter(field__a__isnull=True), |
| 121 | [obj] |
| 122 | ) |
| 123 | |
117 | 124 | |
118 | 125 | class TestSerialization(PostgresSQLTestCase): |
119 | 126 | test_data = '[{"fields": {"field": "{\\"a\\": \\"b\\"}"}, "model": "postgres_tests.hstoremodel", "pk": null}]' |