Issue #1027206: Support IDNA in gethostbyname, gethostbyname_ex and
getaddrinfo. Patch by David Watson.
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 02c99b4..e0912d8 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -637,6 +637,11 @@
                                flags=socket.AI_PASSIVE)
         self.assertEqual(a, b)
 
+    def test_idna(self):
+        # these should all be successful
+        socket.gethostbyname('испытание.python.org')
+        socket.gethostbyname_ex('испытание.python.org')
+        socket.getaddrinfo('испытание.python.org',0)
 
 @unittest.skipUnless(thread, 'Threading required for this test.')
 class BasicTCPTest(SocketConnectedTest):