Mocking doesn't work with Async Tests

[lvalencia]

Context: When I mock an module call and try to run tests async I got a concurrent_reload error from Meck

Problem: We can't run tests asynchronously if we're mocking module calls

Is there a workaround for this?

Sample Error

...** (EXIT from #PID<0.71.0>) an exception was raised:
    ** (ErlangError) erlang error: :concurrent_reload
        src/meck_proc.erl:458: :meck_proc.check_if_being_reloaded/1
        src/meck_proc.erl:231: :meck_proc.handle_call/3
        (stdlib) gen_server.erl:615: :gen_server.try_handle_call/4
        (stdlib) gen_server.erl:647: :gen_server.handle_msg/5
        (stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
21:35:18.669 [error] GenServer MyApp.Repo_meck terminating
** (stop) :concurrent_reload
    src/meck_proc.erl:458: :meck_proc.check_if_being_reloaded/1
    src/meck_proc.erl:231: :meck_proc.handle_call/3
    (stdlib) gen_server.erl:615: :gen_server.try_handle_call/4
    (stdlib) gen_server.erl:647: :gen_server.handle_msg/5
    (stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Last message: {:set_expect, {{:insert, 1}, [{{:args_matcher, [:_], "", false}, {:meck_exec, #Function<0.14554771/1 in MyApp.MyControllerSpec.before_jcswrdayflhugompvzxeinbtkq/1>}}]}}

sample problem code

  use ESpec.Phoenix, controller: MyApp.MyController, async: true
  alias MyApp.Repo

  ...

    before do
       allow(Repo).to accept(:insert, fn(_changeset) -> {:ok, @response} end)
    end

  it "does something" do
     ...
 end

regards.

[lvalencia]

found a link to the same issue addressed directly on espec repo

https://github.com/antonmi/espec/issues/184