diff options
Diffstat (limited to 'Lib/test/test_asyncio/test_futures.py')
| -rw-r--r-- | Lib/test/test_asyncio/test_futures.py | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/Lib/test/test_asyncio/test_futures.py b/Lib/test/test_asyncio/test_futures.py index 5d4b2d2aa0e..ce657fc1b6a 100644 --- a/Lib/test/test_asyncio/test_futures.py +++ b/Lib/test/test_asyncio/test_futures.py @@ -593,7 +593,7 @@ class BaseFutureDoneCallbackTests(): fut.remove_done_callback(evil()) - def test_schedule_callbacks_list_mutation(self): + def test_schedule_callbacks_list_mutation_1(self): # see http://bugs.python.org/issue28963 for details def mut(f): @@ -606,6 +606,28 @@ class BaseFutureDoneCallbackTests(): fut.set_result(1) test_utils.run_briefly(self.loop) + def test_schedule_callbacks_list_mutation_2(self): + # see http://bugs.python.org/issue30828 for details + + fut = self._new_future() + fut.add_done_callback(str) + + for _ in range(63): + fut.add_done_callback(id) + + max_extra_cbs = 100 + extra_cbs = 0 + + class evil: + def __eq__(self, other): + nonlocal extra_cbs + extra_cbs += 1 + if extra_cbs < max_extra_cbs: + fut.add_done_callback(id) + return False + + fut.remove_done_callback(evil()) + @unittest.skipUnless(hasattr(futures, '_CFuture'), 'requires the C _asyncio module') |