 
   @doc """
   Assets a message was or is going to be received. Differently from
-  `assert_received`, it has a default timeout time of half second.
+  `assert_received`, it has a default timeout time of 100 miliseconds.
 
   The given `expected` content must be a pattern.
 


  Refute received with a explicit timeout:

      refute_receive :bye, 500

  """
  defmacro refute_receive(not_expected, timeout // 500, message // nil) do
    do_refute_receive(not_expected, timeout, message)
  end


      assert_received { :hello, _ }

  """
  defmacro assert_receive(expected, timeout // 100, message // nil) do
    do_assert_receive(expected, timeout, message)
  end

