diff -r ad92e63de42c Lib/test/test_asyncio/test_events.py
--- a/Lib/test/test_asyncio/test_events.py	Thu Feb 20 23:26:12 2014 +0100
+++ b/Lib/test/test_asyncio/test_events.py	Fri Feb 21 00:33:36 2014 +0100
@@ -41,13 +41,19 @@ def data_file(filename):
     raise FileNotFoundError(filename)
 
 
-def osx_tiger():
-    """Return True if the platform is Mac OS 10.4 or older."""
-    if sys.platform != 'darwin':
+# Issue #20682: On Mac OS X Tiger and AIX, getsockname() returns a zero-length
+# address for UNIX socket.
+def broken_unix_getsockname():
+    """Return True if getsockname() does not work on UNIX socket,
+    False otherwise."""
+    if sys.platform == 'darwin':
+        version = platform.mac_ver()[0]
+        version = tuple(map(int, version.split('.')))
+        return version < (10, 5)
+    elif sys.platform == 'aix':
+        return True
+    else:
         return False
-    version = platform.mac_ver()[0]
-    version = tuple(map(int, version.split('.')))
-    return version < (10, 5)
 
 
 ONLYCERT = data_file('ssl_cert.pem')
@@ -527,9 +533,7 @@ class EventLoopTestsMixin:
 
     @unittest.skipUnless(hasattr(socket, 'AF_UNIX'), 'No UNIX Sockets')
     def test_create_unix_connection(self):
-        # Issue #20682: On Mac OS X Tiger, getsockname() returns a
-        # zero-length address for UNIX socket.
-        check_sockname = not osx_tiger()
+        check_sockname = not broken_unix_getsockname()
 
         with test_utils.run_test_unix_server() as httpd:
             conn_fut = self.loop.create_unix_connection(
@@ -589,9 +593,7 @@ class EventLoopTestsMixin:
     @unittest.skipIf(ssl is None, 'No ssl module')
     @unittest.skipUnless(hasattr(socket, 'AF_UNIX'), 'No UNIX Sockets')
     def test_create_ssl_unix_connection(self):
-        # Issue #20682: On Mac OS X Tiger, getsockname() returns a
-        # zero-length address for UNIX socket.
-        check_sockname = not osx_tiger()
+        check_sockname = not broken_unix_getsockname()
 
         with test_utils.run_test_unix_server(use_ssl=True) as httpd:
             conn_fut = self.loop.create_unix_connection(