weird answer for process koan about message queue

[EB-Plum]

https://github.com/elixirkoans/elixir-koans/blob/f5e3f75448e9a44bb3445d670f65ed37a216c792/lib/koans/15_processes.ex#L62-L68

# lib/koans/15_processes.ex. line 62
koan "Received messages are queued, first in first out" do
    send(self(), "hola!")
    send(self(), "como se llama?")
    send(self(), "1")
    send(self(), "2")
    send(self(), "3")

    assert_receive "1"
    assert_receive "3"
    assert_receive "como se llama?"
    assert_receive "hola!"
    assert_receive "2"
  end

i tried wrong answer(?), but somehow it passed. is this just my fault? or assert_receive acting weird?

[EB-Plum]

https://hexdocs.pm/ex_unit/1.13/ExUnit.Assertions.html#assert_receive/3 according to doc, it seems assert_receive is not considering message order. it only checks if message was delivered or not.

just in case, if anyone like me want to see the queue. try code below.

koan "Received messages are queued, first in first out" do
    send(self(), "hola!")
    send(self(), "como se llama?")

    {:messages, queue } = Process.info(self(), :messages)

    assert Enum.at(queue, 0) == ___
    assert Enum.at(queue, 1) == ___
end

[iamvery]

👀 #276