That is probably good to create a test file, but in introduces a lot of
false positive. With this patch, new module will be marked as « working
» by default, but that is probably better than « not working ».

Thanks to the coverage, we should be able to find this kind of
non-tested modules

Remove useless trailing \
Remove trailing spaces
Add missing empty lines

autopep8 -ir -j2 --select=E301,E302,E502,W291,W293,W391 .

Diff quickly checked.