130 lines
4.2 KiB
Python
130 lines
4.2 KiB
Python
# Copyright 2025-present MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Test that async cancellation performed by users clean up resources correctly."""
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from __future__ import annotations
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import asyncio
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import sys
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from test.asynchronous.utils import async_get_pool
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from test.utils_shared import delay, one
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sys.path[0:0] = [""]
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from test.asynchronous import AsyncIntegrationTest, async_client_context, connected
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class TestAsyncCancellation(AsyncIntegrationTest):
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async def test_async_cancellation_closes_connection(self):
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pool = await async_get_pool(self.client)
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await self.client.db.test.insert_one({"x": 1})
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self.addAsyncCleanup(self.client.db.test.delete_many, {})
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conn = one(pool.conns)
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async def task():
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await self.client.db.test.find_one({"$where": delay(0.2)})
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task = asyncio.create_task(task())
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await asyncio.sleep(0.1)
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task.cancel()
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with self.assertRaises(asyncio.CancelledError):
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await task
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self.assertTrue(conn.closed)
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@async_client_context.require_transactions
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async def test_async_cancellation_aborts_transaction(self):
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await self.client.db.test.insert_one({"x": 1})
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self.addAsyncCleanup(self.client.db.test.delete_many, {})
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session = self.client.start_session()
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async def callback(session):
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await self.client.db.test.find_one({"$where": delay(0.2)}, session=session)
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async def task():
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await session.with_transaction(callback)
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task = asyncio.create_task(task())
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await asyncio.sleep(0.1)
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task.cancel()
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with self.assertRaises(asyncio.CancelledError):
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await task
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self.assertFalse(session.in_transaction)
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@async_client_context.require_failCommand_blockConnection
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async def test_async_cancellation_closes_cursor(self):
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await self.client.db.test.insert_many([{"x": 1}, {"x": 2}])
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self.addAsyncCleanup(self.client.db.test.delete_many, {})
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cursor = self.client.db.test.find({}, batch_size=1)
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await cursor.next()
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# Make sure getMore commands block
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fail_command = {
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"configureFailPoint": "failCommand",
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"mode": "alwaysOn",
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"data": {"failCommands": ["getMore"], "blockConnection": True, "blockTimeMS": 200},
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}
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async def task():
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async with self.fail_point(fail_command):
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await cursor.next()
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task = asyncio.create_task(task())
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await asyncio.sleep(0.1)
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task.cancel()
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with self.assertRaises(asyncio.CancelledError):
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await task
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self.assertTrue(cursor._killed)
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@async_client_context.require_change_streams
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@async_client_context.require_failCommand_blockConnection
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async def test_async_cancellation_closes_change_stream(self):
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self.addAsyncCleanup(self.client.db.test.delete_many, {})
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change_stream = await self.client.db.test.watch(batch_size=2)
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event = asyncio.Event()
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# Make sure getMore commands block
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fail_command = {
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"configureFailPoint": "failCommand",
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"mode": "alwaysOn",
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"data": {"failCommands": ["getMore"], "blockConnection": True, "blockTimeMS": 200},
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}
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async def task():
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async with self.fail_point(fail_command):
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await self.client.db.test.insert_many([{"x": 1}, {"x": 2}])
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event.set()
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await change_stream.next()
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task = asyncio.create_task(task())
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await event.wait()
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task.cancel()
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with self.assertRaises(asyncio.CancelledError):
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await task
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self.assertTrue(change_stream._closed)
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