Re: AttributeError When Overwritting AUTH_USER_MODEL in Test Cases

I am getting similar issue. No reply on your question. Please share the solution if you found


On Monday, 8 February 2016 19:50:07 UTC+5:30, Aubrey Stark-Toller wrote:

Hello,

When I override the AUTH_USER_MODEL setting to "auth.User",  when
AUTH_USER_MODEL in settings is not set to "auth.User", in
either a TestCase or individual test, and then try to access the objects
attribute on the user model, I get an AttributeError.

The exact error I get is:
AttributeError: Manager isn't available; 'auth.User' has been swapped
for 'None'

I've found this to be the case in both Django 1.8 and 1.9.

This is easily reproducible in a fresh project : create a boilerplate
project with a boilerplate app, add a new user model (call it
CustomUser) to the app and set to AUTH_USER_MODEL to CustomUser, and add
the following test case to the app:

> from django.test import TestCase, override_settings
> from django.contrib.auth import get_user_model
>
> class MyTestCase(TestCase):
>    @override_settings(AUTH_USER_MODEL = 'auth.User')
>    def test_custom_user(self):
>        UserModel = get_user_model()
>        UserModel.objects.all()

get_user_model() retrieves the correct model but accessing objects
attribute gives the stated error when running the test.

If I throw in another user model (say CustomerUser2) and write a test
such as:

>    @override_settings(AUTH_USER_MODEL = 'another_app.CustomerUser2')
>    def test_custom_user(self):
>        UserModel = get_user_model()
>        UserModel.objects.all()

this works fine, and if I unset AUTH_USER_MODEL in settings again
everything works as expected.

Perhaps someone can shed some light on this behavior?

Cheers,
Aubrey

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