Add docstrings to test_acceptance.py
Add docstrings to test_acceptance.py

I just did this as a way of understanding what is being tested.

Also did some basic PEP8 fixes.

These tests do not currently pass for me.

governmentbg/ckan-datapusher,ckan/datapusher,datawagovau/datapusher,tanmaythakur/datapusher,OCHA-DAP/hdx-datapusher,ESRC-CDRC/ckan-datapusher-service