Add test case for last change

src/emqx_listeners.erl

@@ -22,6 +22,12 @@
 -export([restart_listener/1, restart_listener/3]).
 -export([stop_listener/1, stop_listener/3]).
 
+-ifdef(TEST).
+
+-export([mqtt_path/1]).
+
+-endif.
+
 -type(listener() :: {esockd:proto(), esockd:listen_on(), [esockd:option()]}).
 
 %% @doc Start all listeners.

test/emqx_listeners_SUITE.erl

@@ -26,7 +26,8 @@
 
 all() ->
     [start_stop_listeners,
-     restart_listeners].
+     restart_listeners,
+     t_mqtt_path].
 
 init_per_suite(Config) ->
     NewConfig = generate_config(),
@@ -49,6 +50,11 @@ restart_listeners(_) ->
     ok = emqx_listeners:restart(),
     ok = emqx_listeners:stop().
 
+t_mqtt_path(_) ->
+    ?assertEqual("/test", emqx_listeners:mqtt_path([{mqtt_path, "/test"}])),
+    ?assertEqual("/", emqx_listeners:mqtt_path([{mqtt_path, "/"}])),
+    ?assertEqual("/mqtt", emqx_listeners:mqtt_path([{mqtt_path, "test"}])).
+
 generate_config() ->
     Schema = cuttlefish_schema:files([local_path(["priv", "emqx.schema"])]),
     Conf = conf_parse:file([local_path(["etc", "gen.emqx.conf"])]),