1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
# Copyright 2025-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Test that async cancellation performed by users clean up resources correctly."""
from __future__ import annotations
import asyncio
import sys
from test.asynchronous.utils import async_get_pool
from test.utils_shared import delay, one
sys.path[0:0] = [""]
from test.asynchronous import AsyncIntegrationTest, async_client_context, connected
class TestAsyncCancellation(AsyncIntegrationTest):
async def test_async_cancellation_closes_connection(self):
pool = await async_get_pool(self.client)
await self.client.db.test.insert_one({"x": 1})
self.addAsyncCleanup(self.client.db.test.delete_many, {})
conn = one(pool.conns)
async def task():
await self.client.db.test.find_one({"$where": delay(0.2)})
task = asyncio.create_task(task())
await asyncio.sleep(0.1)
task.cancel()
with self.assertRaises(asyncio.CancelledError):
await task
self.assertTrue(conn.closed)
@async_client_context.require_transactions
async def test_async_cancellation_aborts_transaction(self):
await self.client.db.test.insert_one({"x": 1})
self.addAsyncCleanup(self.client.db.test.delete_many, {})
session = self.client.start_session()
async def callback(session):
await self.client.db.test.find_one({"$where": delay(0.2)}, session=session)
async def task():
await session.with_transaction(callback)
task = asyncio.create_task(task())
await asyncio.sleep(0.1)
task.cancel()
with self.assertRaises(asyncio.CancelledError):
await task
self.assertFalse(session.in_transaction)
@async_client_context.require_failCommand_blockConnection
async def test_async_cancellation_closes_cursor(self):
await self.client.db.test.insert_many([{"x": 1}, {"x": 2}])
self.addAsyncCleanup(self.client.db.test.delete_many, {})
cursor = self.client.db.test.find({}, batch_size=1)
await cursor.next()
# Make sure getMore commands block
fail_command = {
"configureFailPoint": "failCommand",
"mode": "alwaysOn",
"data": {"failCommands": ["getMore"], "blockConnection": True, "blockTimeMS": 200},
}
async def task():
async with self.fail_point(fail_command):
await cursor.next()
task = asyncio.create_task(task())
await asyncio.sleep(0.1)
task.cancel()
with self.assertRaises(asyncio.CancelledError):
await task
self.assertTrue(cursor._killed)
@async_client_context.require_change_streams
@async_client_context.require_failCommand_blockConnection
async def test_async_cancellation_closes_change_stream(self):
self.addAsyncCleanup(self.client.db.test.delete_many, {})
change_stream = await self.client.db.test.watch(batch_size=2)
event = asyncio.Event()
# Make sure getMore commands block
fail_command = {
"configureFailPoint": "failCommand",
"mode": "alwaysOn",
"data": {"failCommands": ["getMore"], "blockConnection": True, "blockTimeMS": 200},
}
async def task():
async with self.fail_point(fail_command):
await self.client.db.test.insert_many([{"x": 1}, {"x": 2}])
event.set()
await change_stream.next()
task = asyncio.create_task(task())
await event.wait()
task.cancel()
with self.assertRaises(asyncio.CancelledError):
await task
self.assertTrue(change_stream._closed)
|
