Improve test coverage (#4924)

diff --git a/Lib/test/test_asyncio/test_transports.py b/Lib/test/test_asyncio/test_transports.py
index 3b6e3d67075b57b3bb65d36d1e49a728a09679e9..7de9b3e81a34ec3ff6f547c066f34ad257da72ed 100644 (file)
--- a/Lib/test/test_asyncio/test_transports.py
+++ b/Lib/test/test_asyncio/test_transports.py
@@ -42,6 +42,7 @@ class TransportTests(unittest.TestCase):
         self.assertRaises(NotImplementedError, transport.can_write_eof)
         self.assertRaises(NotImplementedError, transport.pause_reading)
         self.assertRaises(NotImplementedError, transport.resume_reading)
+        self.assertRaises(NotImplementedError, transport.is_reading)
         self.assertRaises(NotImplementedError, transport.close)
         self.assertRaises(NotImplementedError, transport.abort)