The default scaffolds in Phoenix do not show how to use setup_all
and other niceties in your tests. This article shows you how:
http://blog.lucidsimple.com/2016/01/31/exunit-cheat-sheet.html
describe
and setup
blocks.
http://elixir-lang.org/blog/2016/06/21/elixir-v1-3-0-released/
How to assign a user using a setup block
https://github.com/smpallen99/coherence/wiki/Testing-with-Coherence
http://adrian-philipp.com/post/why-elixir-has-great-potential