self = <accounts.tests.TestSelectedInstance testMethod=test_selected_instance_through_session>

    def test_selected_instance_through_session(self):
        self.client.get("/?selected_instance=mastodon.social")
        response = self.client.get("/")
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context["selected_instance"], "mastodon.social")
        self.assertEqual(self.client.session["selected_instance"], "mastodon.social")
>       self.assertContains(
            response,
            "mastodon.social selected",
        )

accounts/tests.py:198: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/opt/hostedtoolcache/Python/3.12.3/x64/lib/python3.12/site-packages/django/test/testcases.py:537: in assertContains
    self.assertTrue(
E   AssertionError: False is not true : Couldn't find 'mastodon.social selected' in response