Yield to avoid race in tests, closes #8275
Yield to avoid race in tests, closes #8275

pedrosnk/elixir,kelvinst/elixir,lexmag/elixir,kelvinst/elixir,elixir-lang/elixir,pedrosnk/elixir,michalmuskala/elixir,ggcampinho/elixir,kimshrier/elixir,ggcampinho/elixir,lexmag/elixir,joshprice/elixir,kimshrier/elixir