Add tests for non-existent file errors in mix run
Add tests for non-existent file errors in mix run
pedrosnk/elixir,gfvcastro/elixir,joshprice/elixir,ggcampinho/elixir,beedub/elixir,lexmag/elixir,kelvinst/elixir,kelvinst/elixir,antipax/elixir,lexmag/elixir,elixir-lang/elixir,kimshrier/elixir,antipax/elixir,ggcampinho/elixir,pedrosnk/elixir,beedub/elixir,gfvcastro/elixir,michalmuskala/elixir,kimshrier/elixir