| # IsolatedAsyncioTestCase based tests |
| import asyncio |
| import unittest |
| |
| |
| class FutureTests(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 RecursiveError at first. |
| # The check for returned string is not very reliable but |
| # exact comparison for the whole string is even weaker. |
| self.assertIn('...', repr(await asyncio.wait_for(func(), timeout=10))) |