Add an e2e test to demonstrate #3304

tests/end_to_end/__main__.py

@@ -2975,6 +2975,60 @@ if __name__ == '__main__':
                      partial(send_stanza, "<presence from='{jid_one}' to='{biboumi_host}' type='unavailable' />"),
                      partial(send_stanza, "<presence from='{jid_one}' to='{biboumi_host}' type='unsubscribed' />"),
                  ]),
+        Scenario("resource_is_removed_from_server_when_last_chan_is_left",
+                 [
+                     # Join the channel
+                     handshake_sequence(),
+                     partial(send_stanza,
+                             "<presence from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}/{nick_one}' />"),
+                     connection_sequence("irc.localhost", '{jid_one}/{resource_one}'),
+                     partial(expect_stanza,
+                             "/message/body[text()='Mode #foo [+nt] by {irc_host_one}']"),
+                     partial(expect_stanza,
+                             ("/presence[@to='{jid_one}/{resource_one}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']",
+                              "/presence/muc_user:x/muc_user:status[@code='110']")
+                             ),
+                     partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat'][@to='{jid_one}/{resource_one}']/subject[not(text())]"),
+
+                     # Make it persistent
+                     partial(send_stanza, "<iq from='{jid_one}/{resource_one}' id='conf1' to='#foo%{irc_server_one}' type='get'><query xmlns='http://jabber.org/protocol/muc#owner'/></iq>"),
+                     partial(expect_stanza, "/iq[@type='result']/muc_owner:query/dataform:x/dataform:field[@var='persistent'][@type='boolean']/dataform:value[text()='false']"),
+                     partial(send_stanza, "<iq from='{jid_one}/{resource_one}' id='conf2' to='#foo%{irc_server_one}' type='set'><query xmlns='http://jabber.org/protocol/muc#owner'><x type='submit' xmlns='jabber:x:data'><field var='persistent' xmlns='jabber:x:data'><value>true</value></field></x></query></iq>"),
+                     partial(expect_stanza, "/iq[@type='result']"),
+
+                     partial(send_stanza, "<presence from='{jid_one}/{resource_one}' to='#foo%{irc_server_one}/{nick_one}' type='unavailable' />"),
+                     partial(expect_stanza, "/presence[@type='unavailable'][@from='#foo%{irc_server_one}/{nick_one}']"),
+
+                     # Join the same channel, with the same JID, but a different resource
+                     partial(send_stanza,
+                             "<presence from='{jid_one}/{resource_two}' to='#foo%{irc_server_one}/{nick_one}' />"),
+                     partial(expect_stanza,
+                             ("/presence[@to='{jid_one}/{resource_two}'][@from='#foo%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']",
+                              "/presence/muc_user:x/muc_user:status[@code='110']")
+                             ),
+                     partial(expect_stanza, "/message[@from='#foo%{irc_server_one}'][@type='groupchat'][@to='{jid_one}/{resource_two}']/subject[not(text())]"),
+
+                     # Join some other channel with someone else
+                     partial(send_stanza,
+                             "<presence from='{jid_two}/{resource_one}' to='#bar%{irc_server_one}/{nick_two}' />"),
+                     connection_sequence("irc.localhost", '{jid_two}/{resource_one}'),
+                     partial(expect_stanza,
+                             "/message/body[text()='Mode #bar [+nt] by {irc_host_one}']"),
+                     partial(expect_stanza,
+                             ("/presence[@to='{jid_two}/{resource_one}'][@from='#bar%{irc_server_one}/{nick_two}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']",
+                              "/presence/muc_user:x/muc_user:status[@code='110']")
+                             ),
+                     partial(expect_stanza, "/message[@from='#bar%{irc_server_one}'][@type='groupchat'][@to='{jid_two}/{resource_one}']/subject[not(text())]"),
+
+                     # Send two messages from the second user to the first one
+                     partial(send_stanza, "<message from='{jid_two}/{resource_one}' to='{lower_nick_one}%{irc_server_one}' type='chat'><body>kikoo</body></message>"),
+                     partial(send_stanza, "<message from='{jid_two}/{resource_one}' to='{lower_nick_one}%{irc_server_one}' type='chat'><body>second kikoo</body></message>"),
+
+                     # We must receive each message only once, no duplicate
+                     partial(expect_stanza, "/message/body[text()='kikoo']"),
+                     partial(expect_stanza, "/message/body[text()='second kikoo']"),
+                  ]
+                 ),
         Scenario("irc_server_presence_in_roster",
                  [
                      handshake_sequence(),