zulip_botserver: Change style of type annotations to python3

zulip_botserver/tests/test_server.py

@@ -1,24 +1,20 @@
-from __future__ import absolute_import
 import mock
+from typing import Any, Dict
 import unittest
-from typing import Any
 from .server_test_lib import BotServerTestCase
 import six
 
 class BotServerTests(BotServerTestCase):
     class MockMessageHandler(object):
-        def handle_message(self, message, bot_handler):
-            # type: (Any, Any, Any) -> None
+        def handle_message(self, message: Dict[str, str], bot_handler: Any) -> None:
             assert message == {'key': "test message"}
 
     class MockLibModule(object):
-        def handler_class(self):
-            # type: () -> Any
+        def handler_class(self) -> Any:
             return BotServerTests.MockMessageHandler()
 
     @mock.patch('zulip_botserver.server.ExternalBotHandler')
-    def test_successful_request(self, mock_ExternalBotHandler):
-        # type: (mock.Mock) -> None
+    def test_successful_request(self, mock_ExternalBotHandler: mock.Mock) -> None:
         available_bots = ['helloworld']
         bots_config = {
             'helloworld': {
@@ -31,16 +27,14 @@ class BotServerTests(BotServerTestCase):
                                         bots_config=bots_config,
                                         check_success=True)
 
-    def test_bot_module_not_exists(self):
-        # type: () -> None
+    def test_bot_module_not_exists(self) -> None:
         self.assert_bot_server_response(available_bots=[],
                                         payload_url="/bots/not_supported_bot",
                                         check_success=False)
 
     @mock.patch('logging.error')
     @mock.patch('zulip_bots.lib.StateHandler')
-    def test_wrong_bot_credentials(self, mock_StateHandler, mock_LoggingError):
-        # type: (mock.Mock, mock.Mock) -> None
+    def test_wrong_bot_credentials(self, mock_StateHandler: mock.Mock, mock_LoggingError: mock.Mock) -> None:
         available_bots = ['nonexistent-bot']
         bots_config = {
             'nonexistent-bot': {