1 files changed, 25 insertions, 0 deletions
diff --git a/test/active_echo_protocol.erl b/test/active_echo_protocol.erl
new file mode 100644
index 0000000..ac53d12
--- /dev/null
+++ b/test/active_echo_protocol.erl
@@ -0,0 +1,25 @@
+-module(active_echo_protocol).
+
+-export([start_link/4]).
+-export([init/4]).
+
+start_link(ListenerPid, Socket, Transport, Opts) ->
+	Pid = spawn_link(?MODULE, init, [ListenerPid, Socket, Transport, Opts]),
+	{ok, Pid}.
+
+init(ListenerPid, Socket, Transport, _Opts = []) ->
+	ok = ranch:accept_ack(ListenerPid),
+	loop(Socket, Transport).
+
+loop(Socket, Transport) ->
+	{OK, Closed, Error} = Transport:messages(),
+	Transport:setopts(Socket, [{active, once}]),
+	receive
+		{OK, Socket, Data} ->
+			Transport:send(Socket, Data),
+			loop(Socket, Transport);
+		{Closed, Socket} ->
+			ok;
+		{Error, Socket, _} ->
+			ok = Transport:close(Socket)
+	end.