From a1551213c892325b076b62a99085da7c05300e1b Mon Sep 17 00:00:00 2001
From: "Zaiming (Stone) Shi" <zmstone@gmail.com>
Date: Thu, 27 Apr 2023 16:23:32 +0200
Subject: [PATCH] test: EMQX_ETC_DIR for test is app's etc dir

---
 apps/emqx/src/emqx_schema.erl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/apps/emqx/src/emqx_schema.erl b/apps/emqx/src/emqx_schema.erl
index db3046bcf..c1fe656da 100644
--- a/apps/emqx/src/emqx_schema.erl
+++ b/apps/emqx/src/emqx_schema.erl
@@ -3181,5 +3181,13 @@ resolve_env(Name0) ->
         true ->
             {ok, Value};
         false ->
-            error
+            special_env(Name)
     end.
+
+-ifdef(TEST).
+%% when running tests, we need to mock the env variables
+special_env("EMQX_ETC_DIR") ->
+    {ok, filename:join([code:lib_dir(emqx), etc])}.
+-else.
+special_env(_Name) -> error.
+-endif.