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https://github.com/python-telegram-bot/python-telegram-bot.git
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149 lines
4.5 KiB
Python
149 lines
4.5 KiB
Python
#!/usr/bin/env python
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#
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# A library that provides a Python interface to the Telegram Bot API
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# Copyright (C) 2015-2022
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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import logging
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import pytest
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from telegram.error import TelegramError
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from telegram.ext._utils.promise import Promise
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class TestPromise:
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"""
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Here we just test the things that are not covered by the other tests anyway
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"""
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test_flag = False
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def test_slot_behaviour(self, mro_slots):
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inst = Promise(self.test_call, [], {})
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for attr in inst.__slots__:
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assert getattr(inst, attr, 'err') != 'err', f"got extra slot '{attr}'"
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assert len(mro_slots(inst)) == len(set(mro_slots(inst))), "duplicate slot"
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@pytest.fixture(autouse=True)
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def reset(self):
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self.test_flag = False
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def test_call(self):
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def callback():
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self.test_flag = True
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promise = Promise(callback, [], {})
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promise()
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assert promise.done
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assert self.test_flag
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def test_run_with_exception(self):
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def callback():
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raise TelegramError('Error')
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promise = Promise(callback, [], {})
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promise.run()
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assert promise.done
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assert not self.test_flag
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assert isinstance(promise.exception, TelegramError)
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def test_wait_for_exception(self):
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def callback():
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raise TelegramError('Error')
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promise = Promise(callback, [], {})
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promise.run()
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with pytest.raises(TelegramError, match='Error'):
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promise.result()
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def test_done_cb_after_run(self):
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def callback():
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return "done!"
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def done_callback(_):
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self.test_flag = True
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promise = Promise(callback, [], {})
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promise.run()
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promise.add_done_callback(done_callback)
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assert promise.result() == "done!"
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assert self.test_flag is True
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def test_done_cb_after_run_excp(self):
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def callback():
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return "done!"
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def done_callback(_):
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raise Exception("Error!")
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promise = Promise(callback, [], {})
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promise.run()
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assert promise.result() == "done!"
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with pytest.raises(Exception) as err:
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promise.add_done_callback(done_callback)
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assert str(err) == "Error!"
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def test_done_cb_before_run(self):
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def callback():
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return "done!"
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def done_callback(_):
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self.test_flag = True
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promise = Promise(callback, [], {})
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promise.add_done_callback(done_callback)
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assert promise.result(0) != "done!"
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assert self.test_flag is False
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promise.run()
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assert promise.result() == "done!"
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assert self.test_flag is True
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def test_done_cb_before_run_excp(self, caplog):
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def callback():
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return "done!"
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def done_callback(_):
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raise Exception("Error!")
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promise = Promise(callback, [], {})
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promise.add_done_callback(done_callback)
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assert promise.result(0) != "done!"
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caplog.clear()
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with caplog.at_level(logging.WARNING):
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promise.run()
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assert len(caplog.records) == 2
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assert caplog.records[0].message == (
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"`done_callback` of a Promise raised the following exception."
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" The exception won't be handled by error handlers."
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)
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assert caplog.records[1].message.startswith("Full traceback:")
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assert promise.result() == "done!"
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def test_done_cb_not_run_on_excp(self):
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def callback():
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raise TelegramError('Error')
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def done_callback(_):
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self.test_flag = True
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promise = Promise(callback, [], {})
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promise.add_done_callback(done_callback)
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promise.run()
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assert isinstance(promise.exception, TelegramError)
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assert promise.done
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assert self.test_flag is False
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