Extract common ExUnit setup

Questions & Help Questions
5

So for anyone having a similar issue you can import ExUnit.Callbacks and it should do the trick.
My support module (test/support/my_app_mock.ex) now looks something like this

defmodule MyApp.Mock do
  import ExUnit.Callbacks

  def set_scaffold(_context) do
    start_supervised(MyApp.MyModule.Supervisor)
    start_supervised({Registry, keys: :unique, name: MyApp.Registry.ById})
    ...
    :ok
  end
end

And then it can be used like

...
import MyApp.Mock

setup :set_scaffold

Just don’t forget to add the path to the compilation path list (example here)