'An object can be created with inlines when it inherits another class.'

def test_create_inlines_on_inherited_model(self):

    data = {'name': 'Martian', 'sighting_set-TOTAL_FORMS': 1, 'sighting_set-INITIAL_FORMS': 0, 'sighting_set-MAX_NUM_FORMS': 0, 'sighting_set-0-place': 'Zone    51', '_save': 'Save'}
    response = self.client.post(reverse('admin:admin_inlines_extraterrestrial_add'), data)
    self.assertEqual(response.status_code, 302)
    self.assertEqual(Sighting.objects.filter(et__name='Martian').count(), 1)
