'Regression test for #16433 - backwards references for related objects
broke if the related field is read-only due to the help_text attribute'

def test_readonly_manytomany_backwards_ref(self):

    topping = Topping.objects.create(name='Salami')
    pizza = Pizza.objects.create(name='Americano')
    pizza.toppings.add(topping)
    response = self.client.get(reverse('admin:admin_views_topping_add'))
    self.assertEqual(response.status_code, 200)
