 
   test "help list default task", context do
     in_tmp context.test, fn ->
-      Mix.Tasks.Help.run []
+      Mix.Tasks.Help.run([])
 
-      {_, _, [output]} =
-        assert_received {:mix_shell, :info, [_]}
+      assert_received {:mix_shell, :info, [output]}
       assert output =~ ~r/^mix\s+# Runs the default task \(current: \"mix run\"\)/m
     end
   end


      output =
        capture_io(fn ->
          Mix.Tasks.Help.run ["compile.all"]
        end)

      assert output =~ "# mix compile.all\n"

    in_tmp context.test, fn ->
      output =
        capture_io(fn ->
          Mix.Tasks.Help.run(["compile"])
        end)

      assert output =~ "# mix compile\n"
