[Python-checkins] add tests for `asyncio` transport sockets (#100263)

[kumaraditya303]

https://github.com/python/cpython/commit/5369bba8c594de7a643408550e19e1ff6df5178a
commit: 5369bba8c594de7a643408550e19e1ff6df5178a
branch: main
author: Kumar Aditya <59607654+kumaraditya303 at users.noreply.github.com>
committer: kumaraditya303 <59607654+kumaraditya303 at users.noreply.github.com>
date: 2022-12-28T10:07:55+05:30
summary:

add tests for `asyncio` transport sockets (#100263)

files:
M Lib/test/test_asyncio/test_events.py

diff --git a/Lib/test/test_asyncio/test_events.py b/Lib/test/test_asyncio/test_events.py
index 153b2de81722..e7771edd2e4a 100644
--- a/Lib/test/test_asyncio/test_events.py
+++ b/Lib/test/test_asyncio/test_events.py
@@ -823,6 +823,29 @@ def test_create_server(self):
         # close server
         server.close()
 
+    def test_create_server_trsock(self):
+        proto = MyProto(self.loop)
+        f = self.loop.create_server(lambda: proto, '0.0.0.0', 0)
+        server = self.loop.run_until_complete(f)
+        self.assertEqual(len(server.sockets), 1)
+        sock = server.sockets[0]
+        self.assertIsInstance(sock, asyncio.trsock.TransportSocket)
+        host, port = sock.getsockname()
+        self.assertEqual(host, '0.0.0.0')
+        dup = sock.dup()
+        self.addCleanup(dup.close)
+        self.assertIsInstance(dup, socket.socket)
+        self.assertFalse(sock.get_inheritable())
+        with self.assertRaises(ValueError):
+            sock.settimeout(1)
+        sock.settimeout(0)
+        self.assertEqual(sock.gettimeout(), 0)
+        with self.assertRaises(ValueError):
+            sock.setblocking(True)
+        sock.setblocking(False)
+        server.close()
+
+
     @unittest.skipUnless(hasattr(socket, 'SO_REUSEPORT'), 'No SO_REUSEPORT')
     def test_create_server_reuse_port(self):
         proto = MyProto(self.loop)