diff --git a/apps/emqx_gateway/src/coap/emqx_coap_impl.erl b/apps/emqx_gateway/src/coap/emqx_coap_impl.erl
index bce57e559..8bdf1bb3c 100644
--- a/apps/emqx_gateway/src/coap/emqx_coap_impl.erl
+++ b/apps/emqx_gateway/src/coap/emqx_coap_impl.erl
@@ -89,8 +89,8 @@ start_listener(GwName, Ctx, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case start_listener(GwName, Ctx, Type, LisName, ListenOn, SocketOpts, Cfg) of
         {ok, Pid} ->
-            ?ULOG("Gateway ~ts:~ts:~ts on ~ts started.~n",
-                  [GwName, Type, LisName, ListenOnStr]),
+            console_print("Gateway ~ts:~ts:~ts on ~ts started.~n",
+                          [GwName, Type, LisName, ListenOnStr]),
             Pid;
         {error, Reason} ->
             ?ELOG("Failed to start gateway ~ts:~ts:~ts on ~ts: ~0p~n",
@@ -118,8 +118,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     StopRet = stop_listener(GwName, Type, LisName, ListenOn, SocketOpts, Cfg),
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case StopRet of
-        ok -> ?ULOG("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
-                    [GwName, Type, LisName, ListenOnStr]);
+        ok ->
+            console_print("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
+                          [GwName, Type, LisName, ListenOnStr]);
         {error, Reason} ->
             ?ELOG("Failed to stop gateway ~ts:~ts:~ts on ~ts: ~0p~n",
                   [GwName, Type, LisName, ListenOnStr, Reason])
@@ -129,3 +130,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
 stop_listener(GwName, Type, LisName, ListenOn, _SocketOpts, _Cfg) ->
     Name = emqx_gateway_utils:listener_id(GwName, Type, LisName),
     esockd:close(Name, ListenOn).
+
+-ifndef(TEST).
+console_print(Fmt, Args) -> ?ULOG(Fmt, Args).
+-else.
+console_print(_Fmt, _Args) -> ok.
+-endif.
diff --git a/apps/emqx_gateway/src/exproto/emqx_exproto_impl.erl b/apps/emqx_gateway/src/exproto/emqx_exproto_impl.erl
index 0a540f4c1..82eb0b52c 100644
--- a/apps/emqx_gateway/src/exproto/emqx_exproto_impl.erl
+++ b/apps/emqx_gateway/src/exproto/emqx_exproto_impl.erl
@@ -59,12 +59,18 @@ start_grpc_server(GwName, Options = #{bind := ListenOn}) ->
                   SslOpts ->
                       [{ssl_options, SslOpts}]
               end,
-    _ = grpc:start_server(GwName, ListenOn, Services, SvrOptions),
-    ?ULOG("Start ~ts gRPC server on ~p successfully.~n", [GwName, ListenOn]).
+    case grpc:start_server(GwName, ListenOn, Services, SvrOptions) of
+        {ok, _SvrPid} ->
+            console_print("Start ~ts gRPC server on ~p successfully.",
+                          [GwName, ListenOn]);
+        {error, Reason} ->
+            ?ELOG("Falied to start ~ts gRPC server on ~p, reason: ~p",
+                  [GwName, ListenOn, Reason])
+    end.
 
 stop_grpc_server(GwName) ->
     _ = grpc:stop_server(GwName),
-    ?ULOG("Stop ~s gRPC server successfully.~n", [GwName]).
+    console_print("Stop ~s gRPC server successfully.~n", [GwName]).
 
 start_grpc_client_channel(_GwName, undefined) ->
     undefined;
@@ -157,8 +163,8 @@ start_listener(GwName, Ctx, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case start_listener(GwName, Ctx, Type, LisName, ListenOn, SocketOpts, Cfg) of
         {ok, Pid} ->
-            ?ULOG("Gateway ~ts:~ts:~ts on ~ts started.~n",
-                  [GwName, Type, LisName, ListenOnStr]),
+            console_print("Gateway ~ts:~ts:~ts on ~ts started.~n",
+                          [GwName, Type, LisName, ListenOnStr]),
             Pid;
         {error, Reason} ->
             ?ELOG("Failed to start gateway ~ts:~ts:~ts on ~ts: ~0p~n",
@@ -212,8 +218,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     StopRet = stop_listener(GwName, Type, LisName, ListenOn, SocketOpts, Cfg),
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case StopRet of
-        ok -> ?ULOG("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
-                    [GwName, Type, LisName, ListenOnStr]);
+        ok ->
+            console_print("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
+                          [GwName, Type, LisName, ListenOnStr]);
         {error, Reason} ->
             ?ELOG("Failed to stop gateway ~ts:~ts:~ts on ~ts: ~0p~n",
                   [GwName, Type, LisName, ListenOnStr, Reason])
@@ -223,3 +230,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
 stop_listener(GwName, Type, LisName, ListenOn, _SocketOpts, _Cfg) ->
     Name = emqx_gateway_utils:listener_id(GwName, Type, LisName),
     esockd:close(Name, ListenOn).
+
+-ifndef(TEST).
+console_print(Fmt, Args) -> ?ULOG(Fmt, Args).
+-else.
+console_print(_Fmt, _Args) -> ok.
+-endif.
diff --git a/apps/emqx_gateway/src/lwm2m/emqx_lwm2m_impl.erl b/apps/emqx_gateway/src/lwm2m/emqx_lwm2m_impl.erl
index 899a7109f..6e01161bb 100644
--- a/apps/emqx_gateway/src/lwm2m/emqx_lwm2m_impl.erl
+++ b/apps/emqx_gateway/src/lwm2m/emqx_lwm2m_impl.erl
@@ -91,8 +91,8 @@ start_listener(GwName, Ctx, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case start_listener(GwName, Ctx, Type, LisName, ListenOn, SocketOpts, Cfg) of
         {ok, Pid} ->
-            ?ULOG("Gateway ~ts:~ts:~ts on ~ts started.~n",
-                  [GwName, Type, LisName, ListenOnStr]),
+            console_print("Gateway ~ts:~ts:~ts on ~ts started.~n",
+                          [GwName, Type, LisName, ListenOnStr]),
             Pid;
         {error, Reason} ->
             ?ELOG("Failed to start gateway ~ts:~ts:~ts on ~ts: ~0p~n",
@@ -131,8 +131,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     StopRet = stop_listener(GwName, Type, LisName, ListenOn, SocketOpts, Cfg),
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case StopRet of
-        ok -> ?ULOG("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
-                    [GwName, Type, LisName, ListenOnStr]);
+        ok ->
+            console_print("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
+                          [GwName, Type, LisName, ListenOnStr]);
         {error, Reason} ->
             ?ELOG("Failed to stop gateway ~ts:~ts:~ts on ~ts: ~0p~n",
                   [GwName, Type, LisName, ListenOnStr, Reason])
@@ -142,3 +143,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
 stop_listener(GwName, Type, LisName, ListenOn, _SocketOpts, _Cfg) ->
     Name = emqx_gateway_utils:listener_id(GwName, Type, LisName),
     esockd:close(Name, ListenOn).
+
+-ifndef(TEST).
+console_print(Fmt, Args) -> ?ULOG(Fmt, Args).
+-else.
+console_print(_Fmt, _Args) -> ok.
+-endif.
diff --git a/apps/emqx_gateway/src/mqttsn/emqx_sn_impl.erl b/apps/emqx_gateway/src/mqttsn/emqx_sn_impl.erl
index 4a683ebdf..377c4f6d6 100644
--- a/apps/emqx_gateway/src/mqttsn/emqx_sn_impl.erl
+++ b/apps/emqx_gateway/src/mqttsn/emqx_sn_impl.erl
@@ -108,8 +108,8 @@ start_listener(GwName, Ctx, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case start_listener(GwName, Ctx, Type, LisName, ListenOn, SocketOpts, Cfg) of
         {ok, Pid} ->
-            ?ULOG("Gateway ~ts:~ts:~ts on ~ts started.~n",
-                  [GwName, Type, LisName, ListenOnStr]),
+            console_print("Gateway ~ts:~ts:~ts on ~ts started.~n",
+                          [GwName, Type, LisName, ListenOnStr]),
             Pid;
         {error, Reason} ->
             ?ELOG("Failed to start gateway ~ts:~ts:~ts on ~ts: ~0p~n",
@@ -142,8 +142,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     StopRet = stop_listener(GwName, Type, LisName, ListenOn, SocketOpts, Cfg),
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case StopRet of
-        ok -> ?ULOG("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
-                    [GwName, Type, LisName, ListenOnStr]);
+        ok ->
+            console_print("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
+                          [GwName, Type, LisName, ListenOnStr]);
         {error, Reason} ->
             ?ELOG("Failed to stop gateway ~ts:~ts:~ts on ~ts: ~0p~n",
                   [GwName, Type, LisName, ListenOnStr, Reason])
@@ -153,3 +154,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
 stop_listener(GwName, Type, LisName, ListenOn, _SocketOpts, _Cfg) ->
     Name = emqx_gateway_utils:listener_id(GwName, Type, LisName),
     esockd:close(Name, ListenOn).
+
+-ifndef(TEST).
+console_print(Fmt, Args) -> ?ULOG(Fmt, Args).
+-else.
+console_print(_Fmt, _Args) -> ok.
+-endif.
diff --git a/apps/emqx_gateway/src/stomp/emqx_stomp_impl.erl b/apps/emqx_gateway/src/stomp/emqx_stomp_impl.erl
index de7321c92..41df189bc 100644
--- a/apps/emqx_gateway/src/stomp/emqx_stomp_impl.erl
+++ b/apps/emqx_gateway/src/stomp/emqx_stomp_impl.erl
@@ -93,8 +93,8 @@ start_listener(GwName, Ctx, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case start_listener(GwName, Ctx, Type, LisName, ListenOn, SocketOpts, Cfg) of
         {ok, Pid} ->
-            ?ULOG("Gateway ~ts:~ts:~ts on ~ts started.~n",
-                  [GwName, Type, LisName, ListenOnStr]),
+            console_print("Gateway ~ts:~ts:~ts on ~ts started.~n",
+                          [GwName, Type, LisName, ListenOnStr]),
             Pid;
         {error, Reason} ->
             ?ELOG("Failed to start gateway ~ts:~ts:~ts on ~ts: ~0p~n",
@@ -127,8 +127,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
     StopRet = stop_listener(GwName, Type, LisName, ListenOn, SocketOpts, Cfg),
     ListenOnStr = emqx_gateway_utils:format_listenon(ListenOn),
     case StopRet of
-        ok -> ?ULOG("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
-                    [GwName, Type, LisName, ListenOnStr]);
+        ok ->
+            console_print("Gateway ~ts:~ts:~ts on ~ts stopped.~n",
+                          [GwName, Type, LisName, ListenOnStr]);
         {error, Reason} ->
             ?ELOG("Failed to stop gateway ~ts:~ts:~ts on ~ts: ~0p~n",
                   [GwName, Type, LisName, ListenOnStr, Reason])
@@ -138,3 +139,9 @@ stop_listener(GwName, {Type, LisName, ListenOn, SocketOpts, Cfg}) ->
 stop_listener(GwName, Type, LisName, ListenOn, _SocketOpts, _Cfg) ->
     Name = emqx_gateway_utils:listener_id(GwName, Type, LisName),
     esockd:close(Name, ListenOn).
+
+-ifndef(TEST).
+console_print(Fmt, Args) -> ?ULOG(Fmt, Args).
+-else.
+console_print(_Fmt, _Args) -> ok.
+-endif.
diff --git a/apps/emqx_gateway/test/emqx_exproto_echo_svr.erl b/apps/emqx_gateway/test/emqx_exproto_echo_svr.erl
index db6334565..51a7e107d 100644
--- a/apps/emqx_gateway/test/emqx_exproto_echo_svr.erl
+++ b/apps/emqx_gateway/test/emqx_exproto_echo_svr.erl
@@ -40,7 +40,7 @@
         , on_received_messages/2
         ]).
 
--define(LOG(Fmt, Args), io:format(standard_error, Fmt, Args)).
+-define(LOG(Fmt, Args), ct:pal(Fmt, Args)).
 
 -define(HTTP, #{grpc_opts => #{service_protos => [emqx_exproto_pb],
                                services => #{'emqx.exproto.v1.ConnectionHandler' => ?MODULE}},
@@ -194,7 +194,7 @@ handle_in(Conn, ?TYPE_CONNECT, #{<<"clientinfo">> := ClientInfo, <<"password">>
             case maps:get(keepalive, NClientInfo, 0) of
                 0 -> ok;
                 Intv ->
-                    io:format("Try call start_timer with ~ps", [Intv]),
+                    ?LOG("Try call start_timer with ~ps", [Intv]),
                     ?start_timer(#{conn => Conn, type => 'KEEPALIVE', interval => Intv})
             end,
             handle_out(Conn, ?TYPE_CONNACK, 0);
diff --git a/apps/emqx_gateway/test/emqx_sn_protocol_SUITE.erl b/apps/emqx_gateway/test/emqx_sn_protocol_SUITE.erl
index 831b0d72f..c57fe48a2 100644
--- a/apps/emqx_gateway/test/emqx_sn_protocol_SUITE.erl
+++ b/apps/emqx_gateway/test/emqx_sn_protocol_SUITE.erl
@@ -36,7 +36,7 @@
 -define(FLAG_RETAIN(X),X).
 -define(FLAG_SESSION(X),X).
 
--define(LOG(Format, Args), ct:print("TEST: " ++ Format, Args)).
+-define(LOG(Format, Args), ct:pal("TEST: " ++ Format, Args)).
 
 -define(MAX_PRED_TOPIC_ID, 2).
 -define(PREDEF_TOPIC_ID1, 1).