[pgsql-www] Writing some tests

I'm new to the world of open source projects, but I've been working as a django developer and proud postgres user for 1 year now.

Would you be interested if I wrote some tests for pgweb? 

It would help me familiarize myself with the codebase and it would help you prevent bugs in the future. The tests could also help ensure stability if you plan on upgrading to the next LTS release of django (1.11).

Also, what's the normal process for contributing code? Someone in the IRC mentioned patching, but didn't go into specifics.