Google Drive can be used to convert documents to pdf for assignment submission annotation

This test requires ghostscript to be installed on the server and a Google client ID and secret and email address for use in testing. It also requires an assignment activity with file submissions allowed.

1. Log in as an admin and set up and configure the OAuth 2 Google service, as described in the documentation OAuth2 Services and OAuth 2 Google service.
2. Connect the Google service to a system account.
3. Go to Site admin > Plugins > Document converters and enable the Google Drive document converter.
4. In the settings, select Google as the OAuth 2 service, then save changes.
5. Click the link 'Test this converter is working properly' and make sure a message is displayed stating that the document converter is correctly configured.
6. Click the link 'Test document conversion' and make sure that a pdf file is displayed.
7. Log in as a student and upload a rtf, doc, xls, docx, xlsx, ppt or pptx file as an assignment submission.
8. Log in as admin (or as a teacher) and try grading the assignment submission.
9. Check that the file is correctly converted to pdf and can be annotated.
10. Repeat the last few steps with at least one other file type assignment submission.