GRAPHQL_SCHEMA is not included in the docs' testing example

[karmek-k]

Note: for support questions, please use stackoverflow. This repository's issues are reserved for feature requests and bug reports.

• What is the current behavior?

I was following the docs' article on testing and noticed that the example code raises the following error:

AttributeError: Variable GRAPHQL_SCHEMA not defined in GraphQLTestCase.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via
  a github repo, https://repl.it or similar (you can use this template as a starting point: https://repl.it/@jkimbo/Graphene-Django-Example).

Here is the code from docs.
Put it somewhere in a Django project with graphene-django installed and run python3 manage.py test.

• What is the expected behavior?

The tests should pass.

• What is the motivation / use case for changing the behavior?

It took me a while to investigate the problem. Hopefully this change may save others' time.

• Please tell us about your environment:

  • Version: Python 3.8.3
  • Platform: Manjaro Linux with KDE Plasma

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow)

The article should mention the GRAPHQL_SCHEMA property and how to set it properly.

[nikolaik]

Docs look correct for version 2.13.0 and forward, but would fail with older versions. Pre v2.13.0 GraphQLTestCase.GRAPHQL_SCHEMA was actually only validated and not ever used. It was removed when refactoring test helpers in #1015 .

[sjdemartini]

Closing since this is now obsolete in newer versions of graphene-django, and setting the schema is done via GRAPHENE['SCHEMA'} in settings as the docs now indicate (here and here)