Unload meck before testcase ends

test/emqx_ctl_SUITE.erl

@@ -67,9 +67,10 @@ t_print(_) ->
     ok = emqx_ctl:print("help"),
     ok = emqx_ctl:print("~s", [help]),
     % - check the output of the usage
-    print_mock(),
+    mock_print(),
     ?assertEqual("help", emqx_ctl:print("help")),
-    ?assertEqual("help", emqx_ctl:print("~s", [help])).
+    ?assertEqual("help", emqx_ctl:print("~s", [help])),
+    unmock_print().
 
 t_usage(_) ->
     CmdParams1 = "emqx_cmd_1 param1 param2",
@@ -80,7 +81,7 @@ t_usage(_) ->
     ok = emqx_ctl:usage(CmdParams1, CmdDescr1),
 
     % - check the output of the usage
-    print_mock(),
+    mock_print(),
     ?assertEqual(Output1, emqx_ctl:usage(CmdParams1, CmdDescr1)),
     ?assertEqual([Output1, Output1], emqx_ctl:usage([{CmdParams1, CmdDescr1}, {CmdParams1, CmdDescr1}])),
 
@@ -90,7 +91,8 @@ t_usage(_) ->
     Output2 = "emqx_cmd_2 param1 param2                        # emqx_cmd_2 is a test command\n"
             "                                                ""# means nothing\n",
     ?assertEqual(Output2, emqx_ctl:usage(CmdParams2, CmdDescr2)),
-    ?assertEqual([Output2, Output2], emqx_ctl:usage([{CmdParams2, CmdDescr2}, {CmdParams2, CmdDescr2}])).
+    ?assertEqual([Output2, Output2], emqx_ctl:usage([{CmdParams2, CmdDescr2}, {CmdParams2, CmdDescr2}])),
+    unmock_print().
 
 t_unexpected(_) ->
     with_ctl_server(
@@ -116,10 +118,13 @@ with_ctl_server(Fun) ->
     _ = Fun(Pid),
     ok = emqx_ctl:stop().
 
-print_mock() ->
+mock_print() ->
     %% proxy usage/1,2 and print/1,2 to format_xx/1,2 funcs
     meck:new(emqx_ctl, [non_strict, passthrough]),
     meck:expect(emqx_ctl, print, fun(Arg) -> emqx_ctl:format(Arg) end),
     meck:expect(emqx_ctl, print, fun(Msg, Arg) -> emqx_ctl:format(Msg, Arg) end),
     meck:expect(emqx_ctl, usage, fun(Usages) -> emqx_ctl:format_usage(Usages) end),
     meck:expect(emqx_ctl, usage, fun(CmdParams, CmdDescr) -> emqx_ctl:format_usage(CmdParams, CmdDescr) end).
+
+unmock_print() ->
+    meck:unload(emqx_ctl).