   import Serum.DevServer.Prompt
   import Serum.TestHelper
   alias Serum.DevServer.Service
+  alias Serum.GlobalBindings
   alias Serum.IOProxy
 
   @commands ~w(build help open quit)

    {:ok, io_opts} = IOProxy.config()

    IOProxy.config(mute_err: false)
    on_exit(fn -> IOProxy.config(Keyword.new(io_opts)) end)
  end

  setup do


    test "handles 'open' command" do
      Serum.DevServer.CommandHandler.Mock
      |> expect(:open_url, fn "http://localhost:8080/test-site/" -> :ok end)

      stderr =
        capture_io(:stderr, fn ->
