Issue #16488: epoll() objects now support the `with` statement.
Patch by Serhiy Storchaka.
diff --git a/Lib/test/test_epoll.py b/Lib/test/test_epoll.py
index 7f9547f..b9b1492 100644
--- a/Lib/test/test_epoll.py
+++ b/Lib/test/test_epoll.py
@@ -87,6 +87,13 @@
         self.assertRaises(TypeError, select.epoll, ['foo'])
         self.assertRaises(TypeError, select.epoll, {})
 
+    def test_context_manager(self):
+        with select.epoll(16) as ep:
+            self.assertGreater(ep.fileno(), 0)
+            self.assertFalse(ep.closed)
+        self.assertTrue(ep.closed)
+        self.assertRaises(ValueError, ep.fileno)
+
     def test_add(self):
         server, client = self._connected_pair()