Config.env() is deprecated

[ballPointPenguin]

I'm using elixir 1.13.2

I needed this to make config :mix_test_watch ... work properly:

if config_env() == :test do
  config :mix_test_watch,
    clear: true
end

and no use Mix.Config

Maybe make a note in the README

PS It was not working for me with only :dev, I needed to specify :test. I'm not sure if that's a version-related change as well.

[tobyhinloopen]

I'd put it in config/dev.exs. (yes, not in config/test.exs), without the IF-statement.

I think dev is used because mix test.watch is executed in development environment by default.

config :mix_test_watch, extra_extensions: [".heex"]