mirror of
https://github.com/python/cpython.git
synced 2024-11-24 17:47:13 +01:00
96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
# IsolatedAsyncioTestCase based tests
|
|
import asyncio
|
|
import contextvars
|
|
import traceback
|
|
import unittest
|
|
from asyncio import tasks
|
|
|
|
|
|
def tearDownModule():
|
|
asyncio.set_event_loop_policy(None)
|
|
|
|
|
|
class FutureTests:
|
|
|
|
async def test_future_traceback(self):
|
|
|
|
async def raise_exc():
|
|
raise TypeError(42)
|
|
|
|
future = self.cls(raise_exc())
|
|
|
|
for _ in range(5):
|
|
try:
|
|
await future
|
|
except TypeError as e:
|
|
tb = ''.join(traceback.format_tb(e.__traceback__))
|
|
self.assertEqual(tb.count("await future"), 1)
|
|
else:
|
|
self.fail('TypeError was not raised')
|
|
|
|
async def test_task_exc_handler_correct_context(self):
|
|
# see https://github.com/python/cpython/issues/96704
|
|
name = contextvars.ContextVar('name', default='foo')
|
|
exc_handler_called = False
|
|
|
|
def exc_handler(*args):
|
|
self.assertEqual(name.get(), 'bar')
|
|
nonlocal exc_handler_called
|
|
exc_handler_called = True
|
|
|
|
async def task():
|
|
name.set('bar')
|
|
1/0
|
|
|
|
loop = asyncio.get_running_loop()
|
|
loop.set_exception_handler(exc_handler)
|
|
self.cls(task())
|
|
await asyncio.sleep(0)
|
|
self.assertTrue(exc_handler_called)
|
|
|
|
async def test_handle_exc_handler_correct_context(self):
|
|
# see https://github.com/python/cpython/issues/96704
|
|
name = contextvars.ContextVar('name', default='foo')
|
|
exc_handler_called = False
|
|
|
|
def exc_handler(*args):
|
|
self.assertEqual(name.get(), 'bar')
|
|
nonlocal exc_handler_called
|
|
exc_handler_called = True
|
|
|
|
def callback():
|
|
name.set('bar')
|
|
1/0
|
|
|
|
loop = asyncio.get_running_loop()
|
|
loop.set_exception_handler(exc_handler)
|
|
loop.call_soon(callback)
|
|
await asyncio.sleep(0)
|
|
self.assertTrue(exc_handler_called)
|
|
|
|
@unittest.skipUnless(hasattr(tasks, '_CTask'),
|
|
'requires the C _asyncio module')
|
|
class CFutureTests(FutureTests, unittest.IsolatedAsyncioTestCase):
|
|
cls = tasks._CTask
|
|
|
|
class PyFutureTests(FutureTests, unittest.IsolatedAsyncioTestCase):
|
|
cls = tasks._PyTask
|
|
|
|
class FutureReprTests(unittest.IsolatedAsyncioTestCase):
|
|
|
|
async def test_recursive_repr_for_pending_tasks(self):
|
|
# The call crashes if the guard for recursive call
|
|
# in base_futures:_future_repr_info is absent
|
|
# See Also: https://bugs.python.org/issue42183
|
|
|
|
async def func():
|
|
return asyncio.all_tasks()
|
|
|
|
# The repr() call should not raise RecursionError at first.
|
|
waiter = await asyncio.wait_for(asyncio.Task(func()),timeout=10)
|
|
self.assertIn('...', repr(waiter))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|