One thing that has often stopped me from either submitting PR's in general, or of submitting a PR complete enough to get committed, is my lack of knowledge/understanding of tests... Sure I can go online and try to read up on tests/the testing framework/SimpleTest/etc., but I'd much rather learn interactively through examples and someone knowledgeable teaching me, especially if it can be Backdrop-specific.
So I'd like to propose the idea of a VUG based around learning to use and write tests for Backdrop. Thoughts?
Sounds useful. I know a few things and when I have time I could help.
The basics is not hard. Most of Backdrop and Drupal 7 tests are "end to end" or functional tests, that is, they simulate using the site like an end user. This is a bit easier to understand than unit tests. This tutorial is helpful https://www.drupal.org/docs/7/testing/simpletest-testing-tutorial-drupal-7
I like this suggestion too.
This is a topic I always wanted to delve into, but never managed to find the time/energy/drive. It would certainly help if we had someone introduce us to the basics.
(I have learned most of what I know about Drupal/Backdrop by watching video tutorials)