@no_oracle
    def test13_select_related_null_fk(self):
        Book.objects.create(title='Without Author')
        b = Book.objects.select_related('author').get(title='Without Author')
        # Should be `None`, and not a 'dummy' model.
        self.assertIsNone(b.author)
Read a file and parse its contents into a Message object model.
dataset/ETHPy150Open django/django/tests/gis_tests/relatedapp/tests.py/RelatedGeoModelTest.test13_select_related_null_fk--crossover with--dataset/ETHPy150Open babble/babble/include/jython/Lib/email/__init__.py/message_from_file