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The overflow occurs under some circumstances when a task or future recursively returns itself. Co-authored-by: Kyle Stanley <aeros167@gmail.com>
18 lines
694 B
Python
18 lines
694 B
Python
# IsolatedAsyncioTestCase based tests
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import asyncio
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import unittest
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class FutureTests(unittest.IsolatedAsyncioTestCase):
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async def test_recursive_repr_for_pending_tasks(self):
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# The call crashes if the guard for recursive call
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# in base_futures:_future_repr_info is absent
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# See Also: https://bugs.python.org/issue42183
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async def func():
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return asyncio.all_tasks()
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# The repr() call should not raise RecursiveError at first.
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# The check for returned string is not very reliable but
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# exact comparison for the whole string is even weaker.
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self.assertIn('...', repr(await asyncio.wait_for(func(), timeout=10)))
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