text: # 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)))
  
  
  if __name__ == '__main__':
      unittest.main()
  