Make EmbeddedBotHandler.get_config_info comply with ExternalBotHandler.

zerver/lib/bot_lib.py

@@ -11,7 +11,7 @@ from zerver.lib.actions import internal_send_private_message, \
 from zerver.models import UserProfile, get_user
 from zerver.lib.bot_storage import get_bot_storage, set_bot_storage, \
     is_key_in_bot_storage, get_bot_storage_size, remove_bot_storage
-from zerver.lib.bot_config import get_bot_config
+from zerver.lib.bot_config import get_bot_config, ConfigError
 from zerver.lib.integrations import EMBEDDED_BOTS
 
 import configparser
@@ -105,5 +105,11 @@ class EmbeddedBotHandler:
                 sender_email=message['sender_email'],
             ))
 
-    def get_config_info(self) -> Dict[Text, Text]:
+    # The bot_name argument exists only to comply with ExternalBotHandler.get_config_info().
+    def get_config_info(self, bot_name: str, optional: bool=False) -> Dict[Text, Text]:
+        try:
             return get_bot_config(self.user_profile)
+        except ConfigError:
+            if optional:
+                return dict()
+            raise

zerver/tests/test_service_bot_system.py

@@ -282,16 +282,18 @@ class TestServiceBotConfigHandler(ZulipTestCase):
         with self.assertRaises(ConfigError):
             self.bot_handler.get_config_info('foo')
 
+        self.assertEqual(self.bot_handler.get_config_info('foo', optional=True), dict())
+
         config_dict = {"entry 1": "value 1", "entry 2": "value 2"}
         for key, value in config_dict.items():
             set_bot_config(self.bot_profile, key, value)
-        self.assertEqual(self.bot_handler.get_config_info(), config_dict)
+        self.assertEqual(self.bot_handler.get_config_info('foo'), config_dict)
 
         config_update = {"entry 2": "new value", "entry 3": "value 3"}
         for key, value in config_update.items():
             set_bot_config(self.bot_profile, key, value)
         config_dict.update(config_update)
-        self.assertEqual(self.bot_handler.get_config_info(), config_dict)
+        self.assertEqual(self.bot_handler.get_config_info('foo'), config_dict)
 
     @override_settings(BOT_CONFIG_SIZE_LIMIT=100)
     def test_config_entry_limit(self) -> None: