[Proposal]: Make test created by `mix test` actually test the generated code

[Unai Esteibar Caballero]

Hi there!

I've modified my fork of the elixir repo so when you run `mix new my_project` it creates the following test:

defmodule MyProjectTest do

  use ExUnit.Case

  doctest MyProject

  test "salutates the world" do

    assert MyProject.hello == :world

  end

end

the current behaviour is:

test "the truth" do

  assert 1 + 1 == 2

end

which doesn't actually test the code.

My motivation for this change is that we would want the developers to be either consciously testing or not the code.

This change would push you towards this goal by giving you a red build whenever you changed the code for the first time, leading you to explicitly make the decision of fixing your tests to align with the changes you introduced to the code or consciously decide to remove them.

The change is pretty simple, you can see it here https://github.com/uesteibar/elixir/commit/26e1aa1461e6427fdec64a105ec93a3b6eb22a82

What do you guys think about this proposal? If it's fine for you, I can create an issue with the explanation and a pull request with the code I linked to above.

Thank you!!

Unai Esteibar

[José Valim]

Please do send a PR! I do believe this is better than the current code.

--

José Valim

www.plataformatec.com.br

Skype: jv.ptec

Founder and Director of R&D

[Unai Esteibar Caballero]

Done! Thanks for the quick reply :)