mirror of
https://github.com/python/cpython.git
synced 2025-11-04 07:31:38 +00:00
66 lines
1.6 KiB
Python
66 lines
1.6 KiB
Python
"""Tests for asyncio/threads.py"""
|
|
|
|
import asyncio
|
|
import unittest
|
|
|
|
from contextvars import ContextVar
|
|
from unittest import mock
|
|
|
|
|
|
def tearDownModule():
|
|
asyncio.set_event_loop_policy(None)
|
|
|
|
|
|
class ToThreadTests(unittest.IsolatedAsyncioTestCase):
|
|
async def test_to_thread(self):
|
|
result = await asyncio.to_thread(sum, [40, 2])
|
|
self.assertEqual(result, 42)
|
|
|
|
async def test_to_thread_exception(self):
|
|
def raise_runtime():
|
|
raise RuntimeError("test")
|
|
|
|
with self.assertRaisesRegex(RuntimeError, "test"):
|
|
await asyncio.to_thread(raise_runtime)
|
|
|
|
async def test_to_thread_once(self):
|
|
func = mock.Mock()
|
|
|
|
await asyncio.to_thread(func)
|
|
func.assert_called_once()
|
|
|
|
async def test_to_thread_concurrent(self):
|
|
calls = []
|
|
def func():
|
|
calls.append(1)
|
|
|
|
futs = []
|
|
for _ in range(10):
|
|
fut = asyncio.to_thread(func)
|
|
futs.append(fut)
|
|
await asyncio.gather(*futs)
|
|
|
|
self.assertEqual(sum(calls), 10)
|
|
|
|
async def test_to_thread_args_kwargs(self):
|
|
# Unlike run_in_executor(), to_thread() should directly accept kwargs.
|
|
func = mock.Mock()
|
|
|
|
await asyncio.to_thread(func, 'test', something=True)
|
|
|
|
func.assert_called_once_with('test', something=True)
|
|
|
|
async def test_to_thread_contextvars(self):
|
|
test_ctx = ContextVar('test_ctx')
|
|
|
|
def get_ctx():
|
|
return test_ctx.get()
|
|
|
|
test_ctx.set('parrot')
|
|
result = await asyncio.to_thread(get_ctx)
|
|
|
|
self.assertEqual(result, 'parrot')
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|