Add events for bot default_events_register_stream changes

(imported from commit 143ed5b110a7f3b37f145dcd3fbe9133a183c7ec)

zerver/lib/actions.py

@@ -1395,6 +1395,16 @@ def do_change_default_events_register_stream(user_profile, stream, log=True):
         log_event({'type': 'user_change_default_events_register_stream',
                    'user': user_profile.email,
                    'stream': str(stream)})
+    if user_profile.is_bot:
+        if stream:
+            stream_name = stream.name
+        else:
+            stream_name = None
+        send_event(dict(type='realm_bot',
+                        op='update',
+                        bot=dict(email=user_profile.email,
+                                 default_events_register_stream=stream_name,)),
+                    bot_owner_userids(user_profile))
 
 def do_change_default_all_public_streams(user_profile, value, log=True):
     user_profile.default_all_public_streams = value

zerver/test_events.py

@@ -28,6 +28,7 @@ from zerver.lib.actions import (
     do_change_avatar_source,
     do_change_default_all_public_streams,
     do_change_default_sending_stream,
+    do_change_default_events_register_stream,
     fetch_initial_state_data,
 )
 
@@ -318,6 +319,13 @@ class EventsRegisterTest(AuthedTestCase):
         error = self.build_update_checker('default_sending_stream', check_string)('events[0]', events[0])
         self.assert_on_error(error)
 
+    def test_change_bot_default_events_register_stream(self):
+        stream = get_stream("Rome", self.bot.realm)
+        action = lambda: do_change_default_events_register_stream(self.bot, stream)
+        events = self.do_test(action)
+        error = self.build_update_checker('default_events_register_stream', check_string)('events[0]', events[0])
+        self.assert_on_error(error)
+
     def test_rename_stream(self):
         realm = get_realm('zulip.com')
         stream, _ = create_stream_if_needed(realm, 'old_name')