test(authz): fix test suite for schema check and app start

apps/emqx_authz/src/emqx_authz_http.erl

@@ -73,6 +73,9 @@ authorize(Client, PubSub, Topic,
             ignore
     end.
 
+parse_url(URL)
+  when URL =:= undefined ->
+    #{};
 parse_url(URL) ->
     {ok, URIMap} = emqx_http_lib:uri_parse(URL),
     case maps:get(query, URIMap, undefined) of

apps/emqx_authz/src/emqx_authz_schema.erl

@@ -199,6 +199,9 @@ transform_header_name(Headers) ->
                       maps:put(K, V, Acc)
               end, #{}, Headers).
 
+check_ssl_opts(Conf)
+  when Conf =:= #{} ->
+    true;
 check_ssl_opts(Conf) ->
     case emqx_authz_http:parse_url(hocon_schema:get_value("config.url", Conf)) of
         #{scheme := https} ->
@@ -210,6 +213,9 @@ check_ssl_opts(Conf) ->
             ok
     end.
 
+check_headers(Conf)
+    when Conf =:= #{} ->
+    true;
 check_headers(Conf) ->
     Method = to_bin(hocon_schema:get_value("config.method", Conf)),
     Headers = hocon_schema:get_value("config.headers", Conf),

apps/emqx_authz/test/emqx_authz_SUITE.erl

@@ -36,7 +36,8 @@ init_per_suite(Config) ->
     meck:expect(emqx_resource, remove, fun(_) -> ok end ),
 
     ok = emqx_common_test_helpers:start_apps(
-           [emqx_conf, emqx_authz], fun set_special_configs/1),
+           [emqx_connector, emqx_conf, emqx_authz],
+           fun set_special_configs/1),
     Config.
 
 end_per_suite(_Config) ->