sebpiq/django-rest-framework — comment on commit 792bc4d60814af026f926a4c92a9d4a8e3124341
File: djangorestframework/tests/serializer.py line 125
By tomchristie:

Use "invalid".
Also probably needs a bit more explanation, such as:

Test serializing a model instance with an overridden hook method on the serializer.
Checks for correct serialization behavior when there are different class and instance attributes for a given field.