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python-telegram-bot/tests/test_dispatcher.py
Bibo-Joshi f6b663f175
bot_data as global memory (V12 version of #1322) (#1325) 
* Update AUTHORS.rst

* Update AUTHORS.rst

* Add bot_data to CallbackContext as global memory

* Minor fixes in docstrings

* Incorp. req. changes, Flake8 Fixes

* Persist before stop

* Fix CI errors

* Implement #1342 for bot_data

* Add check pickle_persistence_only_bot similar to #1462

* Fix test_persistence

* Try dispatching error before logging it

* Fix test

Co-authored-by: Eldinnie <Eldinnie@users.noreply.github.com>
2020-02-02 22:20:31 +01:00

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#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2020
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program. If not, see [http://www.gnu.org/licenses/].
import sys
from queue import Queue
from threading import current_thread
from time import sleep
import pytest
from telegram import TelegramError, Message, User, Chat, Update, Bot, MessageEntity
from telegram.ext import (MessageHandler, Filters, CommandHandler, CallbackContext,
JobQueue, BasePersistence)
from telegram.ext.dispatcher import run_async, Dispatcher, DispatcherHandlerStop
from telegram.utils.deprecate import TelegramDeprecationWarning
from tests.conftest import create_dp
from collections import defaultdict
@pytest.fixture(scope='function')
def dp2(bot):
for dp in create_dp(bot):
yield dp
class TestDispatcher(object):
message_update = Update(1,
message=Message(1, User(1, '', False), None, Chat(1, ''), text='Text'))
received = None
count = 0
@pytest.fixture(autouse=True, name='reset')
def reset_fixture(self):
self.reset()
def reset(self):
self.received = None
self.count = 0
def error_handler(self, bot, update, error):
self.received = error.message
def error_handler_raise_error(self, bot, update, error):
raise Exception('Failing bigly')
def callback_increase_count(self, bot, update):
self.count += 1
def callback_set_count(self, count):
def callback(bot, update):
self.count = count
return callback
def callback_raise_error(self, bot, update):
raise TelegramError(update.message.text)
def callback_if_not_update_queue(self, bot, update, update_queue=None):
if update_queue is not None:
self.received = update.message
def callback_context(self, update, context):
if (isinstance(context, CallbackContext)
and isinstance(context.bot, Bot)
and isinstance(context.update_queue, Queue)
and isinstance(context.job_queue, JobQueue)
and isinstance(context.error, TelegramError)):
self.received = context.error.message
def test_one_context_per_update(self, cdp):
def one(update, context):
if update.message.text == 'test':
context.my_flag = True
def two(update, context):
if update.message.text == 'test':
if not hasattr(context, 'my_flag'):
pytest.fail()
else:
if hasattr(context, 'my_flag'):
pytest.fail()
cdp.add_handler(MessageHandler(Filters.regex('test'), one), group=1)
cdp.add_handler(MessageHandler(None, two), group=2)
u = Update(1, Message(1, None, None, None, text='test'))
cdp.process_update(u)
u.message.text = 'something'
cdp.process_update(u)
def test_error_handler(self, dp):
dp.add_error_handler(self.error_handler)
error = TelegramError('Unauthorized.')
dp.update_queue.put(error)
sleep(.1)
assert self.received == 'Unauthorized.'
# Remove handler
dp.remove_error_handler(self.error_handler)
self.reset()
dp.update_queue.put(error)
sleep(.1)
assert self.received is None
def test_construction_with_bad_persistence(self, caplog, bot):
class my_per:
def __init__(self):
self.store_user_data = False
self.store_chat_data = False
self.store_bot_data = False
with pytest.raises(TypeError,
match='persistence should be based on telegram.ext.BasePersistence'):
Dispatcher(bot, None, persistence=my_per())
def test_error_handler_that_raises_errors(self, dp):
"""
Make sure that errors raised in error handlers don't break the main loop of the dispatcher
"""
handler_raise_error = MessageHandler(Filters.all, self.callback_raise_error)
handler_increase_count = MessageHandler(Filters.all, self.callback_increase_count)
error = TelegramError('Unauthorized.')
dp.add_error_handler(self.error_handler_raise_error)
# From errors caused by handlers
dp.add_handler(handler_raise_error)
dp.update_queue.put(self.message_update)
sleep(.1)
# From errors in the update_queue
dp.remove_handler(handler_raise_error)
dp.add_handler(handler_increase_count)
dp.update_queue.put(error)
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.count == 1
def test_run_async_multiple(self, bot, dp, dp2):
def get_dispatcher_name(q):
q.put(current_thread().name)
q1 = Queue()
q2 = Queue()
dp.run_async(get_dispatcher_name, q1)
dp2.run_async(get_dispatcher_name, q2)
sleep(.1)
name1 = q1.get()
name2 = q2.get()
assert name1 != name2
def test_multiple_run_async_decorator(self, dp, dp2):
# Make sure we got two dispatchers and that they are not the same
assert isinstance(dp, Dispatcher)
assert isinstance(dp2, Dispatcher)
assert dp is not dp2
@run_async
def must_raise_runtime_error():
pass
with pytest.raises(RuntimeError):
must_raise_runtime_error()
def test_run_async_with_args(self, dp):
dp.add_handler(MessageHandler(Filters.all,
run_async(self.callback_if_not_update_queue),
pass_update_queue=True))
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.received == self.message_update.message
def test_error_in_handler(self, dp):
dp.add_handler(MessageHandler(Filters.all, self.callback_raise_error))
dp.add_error_handler(self.error_handler)
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.received == self.message_update.message.text
def test_add_remove_handler(self, dp):
handler = MessageHandler(Filters.all, self.callback_increase_count)
dp.add_handler(handler)
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.count == 1
dp.remove_handler(handler)
dp.update_queue.put(self.message_update)
assert self.count == 1
def test_add_remove_handler_non_default_group(self, dp):
handler = MessageHandler(Filters.all, self.callback_increase_count)
dp.add_handler(handler, group=2)
with pytest.raises(KeyError):
dp.remove_handler(handler)
dp.remove_handler(handler, group=2)
def test_error_start_twice(self, dp):
assert dp.running
dp.start()
def test_handler_order_in_group(self, dp):
dp.add_handler(MessageHandler(Filters.photo, self.callback_set_count(1)))
dp.add_handler(MessageHandler(Filters.all, self.callback_set_count(2)))
dp.add_handler(MessageHandler(Filters.text, self.callback_set_count(3)))
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.count == 2
def test_groups(self, dp):
dp.add_handler(MessageHandler(Filters.all, self.callback_increase_count))
dp.add_handler(MessageHandler(Filters.all, self.callback_increase_count), group=2)
dp.add_handler(MessageHandler(Filters.all, self.callback_increase_count), group=-1)
dp.update_queue.put(self.message_update)
sleep(.1)
assert self.count == 3
def test_add_handler_errors(self, dp):
handler = 'not a handler'
with pytest.raises(TypeError, match='handler is not an instance of'):
dp.add_handler(handler)
handler = MessageHandler(Filters.photo, self.callback_set_count(1))
with pytest.raises(TypeError, match='group is not int'):
dp.add_handler(handler, 'one')
def test_flow_stop(self, dp, bot):
passed = []
def start1(b, u):
passed.append('start1')
raise DispatcherHandlerStop
def start2(b, u):
passed.append('start2')
def start3(b, u):
passed.append('start3')
def error(b, u, e):
passed.append('error')
passed.append(e)
update = Update(1, message=Message(1, None, None, None, text='/start',
entities=[MessageEntity(type=MessageEntity.BOT_COMMAND,
offset=0,
length=len('/start'))],
bot=bot))
# If Stop raised handlers in other groups should not be called.
passed = []
dp.add_handler(CommandHandler('start', start1), 1)
dp.add_handler(CommandHandler('start', start3), 1)
dp.add_handler(CommandHandler('start', start2), 2)
dp.process_update(update)
assert passed == ['start1']
def test_exception_in_handler(self, dp, bot):
passed = []
err = Exception('General exception')
def start1(b, u):
passed.append('start1')
raise err
def start2(b, u):
passed.append('start2')
def start3(b, u):
passed.append('start3')
def error(b, u, e):
passed.append('error')
passed.append(e)
update = Update(1, message=Message(1, None, None, None, text='/start',
entities=[MessageEntity(type=MessageEntity.BOT_COMMAND,
offset=0,
length=len('/start'))],
bot=bot))
# If an unhandled exception was caught, no further handlers from the same group should be
# called. Also, the error handler should be called and receive the exception
passed = []
dp.add_handler(CommandHandler('start', start1), 1)
dp.add_handler(CommandHandler('start', start2), 1)
dp.add_handler(CommandHandler('start', start3), 2)
dp.add_error_handler(error)
dp.process_update(update)
assert passed == ['start1', 'error', err, 'start3']
def test_telegram_error_in_handler(self, dp, bot):
passed = []
err = TelegramError('Telegram error')
def start1(b, u):
passed.append('start1')
raise err
def start2(b, u):
passed.append('start2')
def start3(b, u):
passed.append('start3')
def error(b, u, e):
passed.append('error')
passed.append(e)
update = Update(1, message=Message(1, None, None, None, text='/start',
entities=[MessageEntity(type=MessageEntity.BOT_COMMAND,
offset=0,
length=len('/start'))],
bot=bot))
# If a TelegramException was caught, an error handler should be called and no further
# handlers from the same group should be called.
dp.add_handler(CommandHandler('start', start1), 1)
dp.add_handler(CommandHandler('start', start2), 1)
dp.add_handler(CommandHandler('start', start3), 2)
dp.add_error_handler(error)
dp.process_update(update)
assert passed == ['start1', 'error', err, 'start3']
assert passed[2] is err
def test_error_while_saving_chat_data(self, dp, bot):
increment = []
class OwnPersistence(BasePersistence):
def __init__(self):
super(BasePersistence, self).__init__()
self.store_user_data = True
self.store_chat_data = True
self.store_bot_data = True
def get_bot_data(self):
return dict()
def update_bot_data(self, data):
raise Exception
def get_chat_data(self):
return defaultdict(dict)
def update_chat_data(self, chat_id, data):
raise Exception
def get_user_data(self):
return defaultdict(dict)
def update_user_data(self, user_id, data):
raise Exception
def start1(b, u):
pass
def error(b, u, e):
increment.append("error")
# If updating a user_data or chat_data from a persistence object throws an error,
# the error handler should catch it
update = Update(1, message=Message(1, User(1, "Test", False), None, Chat(1, "lala"),
text='/start',
entities=[MessageEntity(type=MessageEntity.BOT_COMMAND,
offset=0,
length=len('/start'))],
bot=bot))
my_persistence = OwnPersistence()
dp = Dispatcher(bot, None, persistence=my_persistence)
dp.add_handler(CommandHandler('start', start1))
dp.add_error_handler(error)
dp.process_update(update)
assert increment == ["error", "error", "error"]
def test_flow_stop_in_error_handler(self, dp, bot):
passed = []
err = TelegramError('Telegram error')
def start1(b, u):
passed.append('start1')
raise err
def start2(b, u):
passed.append('start2')
def start3(b, u):
passed.append('start3')
def error(b, u, e):
passed.append('error')
passed.append(e)
raise DispatcherHandlerStop
update = Update(1, message=Message(1, None, None, None, text='/start',
entities=[MessageEntity(type=MessageEntity.BOT_COMMAND,
offset=0,
length=len('/start'))],
bot=bot))
# If a TelegramException was caught, an error handler should be called and no further
# handlers from the same group should be called.
dp.add_handler(CommandHandler('start', start1), 1)
dp.add_handler(CommandHandler('start', start2), 1)
dp.add_handler(CommandHandler('start', start3), 2)
dp.add_error_handler(error)
dp.process_update(update)
assert passed == ['start1', 'error', err]
assert passed[2] is err
def test_error_handler_context(self, cdp):
cdp.add_error_handler(self.callback_context)
error = TelegramError('Unauthorized.')
cdp.update_queue.put(error)
sleep(.1)
assert self.received == 'Unauthorized.'
def test_sensible_worker_thread_names(self, dp2):
thread_names = [thread.name for thread in getattr(dp2, '_Dispatcher__async_threads')]
print(thread_names)
for thread_name in thread_names:
assert thread_name.startswith("Bot:{}:worker:".format(dp2.bot.id))
@pytest.mark.skipif(sys.version_info < (3, 0), reason='pytest fails this for no reason')
def test_non_context_deprecation(self, dp):
with pytest.warns(TelegramDeprecationWarning):
Dispatcher(dp.bot, dp.update_queue, job_queue=dp.job_queue, workers=0,
use_context=False)
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