Fix the order of from and to address in muc traffic info reply

And add a test for it.

fix #3238

src/xmpp/biboumi_component.cpp

@@ -738,7 +738,7 @@ void BiboumiComponent::send_irc_server_disco_info(const std::string& id, const s
   this->send_stanza(iq);
 }
 
-void BiboumiComponent::send_irc_channel_muc_traffic_info(const std::string id, const std::string& jid_from, const std::string& jid_to)
+void BiboumiComponent::send_irc_channel_muc_traffic_info(const std::string id, const std::string& jid_to, const std::string& jid_from)
 {
   Stanza iq("iq");
   {

src/xmpp/biboumi_component.hpp

@@ -69,7 +69,7 @@ public:
    * Sends the allowed namespaces in MUC message, according to
    * http://xmpp.org/extensions/xep-0045.html#impl-service-traffic
    */
-   void send_irc_channel_muc_traffic_info(const std::string id, const std::string& jid_from, const std::string& jid_to);
+   void send_irc_channel_muc_traffic_info(const std::string id, const std::string& jid_to, const std::string& jid_from);
   /**
    * Send a ping request
    */

tests/end_to_end/__main__.py

@@ -1864,7 +1864,7 @@ if __name__ == '__main__':
 
                      partial(send_stanza,
                              "<iq from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}' id='1' type='get'><query xmlns='http://jabber.org/protocol/disco#info' node='http://jabber.org/protocol/muc#traffic'/></iq>"),
-                     partial(expect_stanza, "/iq[@type='result']/disco_info:query[@node='http://jabber.org/protocol/muc#traffic']"),
+                     partial(expect_stanza, "/iq[@from='#foo%{irc_server_one}'][@to='{jid_one}/{resource_one}'][@type='result']/disco_info:query[@node='http://jabber.org/protocol/muc#traffic']"),
                 ]),
                 Scenario("raw_message",
                 [