pythongh-108973: Fix asyncio test_subprocess_consistent_callbacks()

Subprocess events can be delivered in any order: tolerate that in the
case.

Author: vstinner

Lib/test/test_asyncio/test_subprocess.py

@@ -763,7 +763,7 @@ def pipe_data_received(self, fd, data) -> None:
                 events.append(('pipe_data_received', fd, data))
 
             def pipe_connection_lost(self, fd, exc) -> None:
-                events.append('pipe_connection_lost')
+                events.append(('pipe_connection_lost', fd))
 
             def process_exited(self) -> None:
                 events.append('process_exited')
@@ -777,13 +777,16 @@ async def main() -> None:
                                                       sys.executable, '-c', code, stdin=None)
             await exit_future
             transport.close()
-            self.assertEqual(events, [
+
+            expected = [
                 ('pipe_data_received', 1, b'stdout'),
                 ('pipe_data_received', 2, b'stderr'),
-                'pipe_connection_lost',
-                'pipe_connection_lost',
+                ('pipe_connection_lost', 1),
+                ('pipe_connection_lost', 2),
                 'process_exited',
-            ])
+            ]
+            # gh-108973: Events can be delivered in any order
+            self.assertSetEqual(set(events), set(expected))
 
         self.loop.run_until_complete(main())