fix: add sub api doc & test suite (#5634)

* fix: add sub api doc & test suite

apps/emqx_management/src/emqx_mgmt_api_subscriptions.erl

@@ -96,13 +96,13 @@ parameters() ->
         #{
             name => topic,
             in => query,
-            description => <<"Topic">>,
+            description => <<"Topic, url encoding">>,
             schema => #{type => string}
         }
         #{
             name => match_topic,
             in => query,
-            description => <<"Match topic string">>,
+            description => <<"Match topic string, url encoding">>,
             schema => #{type => string}
         } | page_params()
     ].

apps/emqx_management/test/emqx_mgmt_subscription_api_SUITE.erl

@@ -24,8 +24,10 @@
 -define(USERNAME, <<"api_username">>).
 
 %% notice: integer topic for sort response
--define(TOPIC1, <<"0000">>).
+-define(TOPIC1, <<"/t/0000">>).
--define(TOPIC2, <<"0001">>).
+-define(TOPIC2, <<"/t/0001">>).
+
+-define(TOPIC_SORT, #{?TOPIC1 => 1, ?TOPIC2 => 2}).
 
 all() ->
     emqx_ct:all(?MODULE).
@@ -53,11 +55,24 @@ t_subscription_api(_) ->
     ?assertEqual(length(Subscriptions), 2),
     Sort =
         fun(#{<<"topic">> := T1}, #{<<"topic">> := T2}) ->
-            binary_to_integer(T1) =< binary_to_integer(T2)
+            maps:get(T1, ?TOPIC_SORT) =< maps:get(T2, ?TOPIC_SORT)
         end,
     [Subscriptions1, Subscriptions2]  = lists:sort(Sort, Subscriptions),
     ?assertEqual(maps:get(<<"topic">>, Subscriptions1), ?TOPIC1),
     ?assertEqual(maps:get(<<"topic">>, Subscriptions2), ?TOPIC2),
     ?assertEqual(maps:get(<<"clientid">>, Subscriptions1), ?CLIENTID),
     ?assertEqual(maps:get(<<"clientid">>, Subscriptions2), ?CLIENTID),
+
+    QsTopic = "topic=" ++ <<"%2Ft%2F0001">>,
+    Headers = emqx_mgmt_api_test_util:auth_header_(),
+    {ok, ResponseTopic1} = emqx_mgmt_api_test_util:request_api(get, Path, QsTopic, Headers),
+    DataTopic1 = emqx_json:decode(ResponseTopic1, [return_maps]),
+    Meta1 = maps:get(<<"meta">>, DataTopic1),
+    ?assertEqual(1, maps:get(<<"page">>, Meta1)),
+    ?assertEqual(emqx_mgmt:max_row_limit(), maps:get(<<"limit">>, Meta1)),
+    ?assertEqual(1, maps:get(<<"count">>, Meta1)),
+    Subscriptions_qs1 = maps:get(<<"data">>, DataTopic1),
+    ?assertEqual(length(Subscriptions_qs1), 1),
+
+
     emqtt:disconnect(Client).