make the tests check for any error message

cookbook/tests/edits/test_edits_storage.py

@@ -1,7 +1,10 @@
-from cookbook.models import Storage
-from django.contrib import auth
-from django.urls import reverse
 import pytest
+from django.contrib import auth
+from django.contrib import messages
+from django.contrib.messages import get_messages
+from django.urls import reverse
+
+from cookbook.models import Storage
 
 
 @pytest.fixture
@@ -29,6 +32,9 @@ def test_edit_storage(storage_obj, a1_s1, a1_s2):
     )
     storage_obj.refresh_from_db()
     assert r.status_code == 200
+    r_messages = [m for m in get_messages(r.wsgi_request)]
+    assert not any(m.level > messages.SUCCESS for m in r_messages)
+
     assert storage_obj.password == '1234_pw'
     assert storage_obj.token == '1234_token'