diff --git a/Lib/test/test_abc.py b/Lib/test/test_abc.py
index e6c8415..884dd32 100644
--- a/Lib/test/test_abc.py
+++ b/Lib/test/test_abc.py
@@ -56,10 +56,18 @@
             self.assertEqual(F.__abstractmethods__, {"bar"})
             self.assertRaises(TypeError, F)  # because bar is abstract now
 
+    def test_subclass_oldstyle_class(self):
+        class A:
+            __metaclass__ = abc.ABCMeta
+        class OldstyleClass:
+            pass
+        self.assertFalse(issubclass(OldstyleClass, A))
+        self.assertFalse(issubclass(A, OldstyleClass))
+
     def test_registration_basics(self):
         class A(metaclass=abc.ABCMeta):
             pass
-        class B:
+        class B(object):
             pass
         b = B()
         self.assertEqual(issubclass(B, A), False)
@@ -94,7 +102,7 @@
         class A1(A):
             pass
         self.assertRaises(RuntimeError, A1.register, A)  # cycles not allowed
-        class B:
+        class B(object):
             pass
         A1.register(B)  # ok
         A1.register(B)  # should pass silently
@@ -135,7 +143,7 @@
     def test_all_new_methods_are_called(self):
         class A(metaclass=abc.ABCMeta):
             pass
-        class B:
+        class B(object):
             counter = 0
             def __new__(cls):
                 B.counter += 1
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 535f0ef..facf9fd 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -1114,6 +1114,85 @@
         buf = bytes(MSG)
         self.serv_conn.send(buf)
 
+
+TIPC_STYPE = 2000
+TIPC_LOWER = 200
+TIPC_UPPER = 210
+
+def isTipcAvailable():
+    """Check if the TIPC module is loaded
+
+    The TIPC module is not loaded automatically on Ubuntu and probably
+    other Linux distros.
+    """
+    if not hasattr(socket, "AF_TIPC"):
+        return False
+    if not os.path.isfile("/proc/modules"):
+        return False
+    with open("/proc/modules") as f:
+        for line in f:
+            if line.startswith("tipc "):
+                return True
+    if test_support.debug:
+        print("TIPC module is not loaded, please 'sudo modprobe tipc'")
+    return False
+
+class TIPCTest (unittest.TestCase):
+    def testRDM(self):
+        srv = socket.socket(socket.AF_TIPC, socket.SOCK_RDM)
+        cli = socket.socket(socket.AF_TIPC, socket.SOCK_RDM)
+
+        srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE,
+                TIPC_LOWER, TIPC_UPPER)
+        srv.bind(srvaddr)
+
+        sendaddr = (socket.TIPC_ADDR_NAME, TIPC_STYPE,
+                TIPC_LOWER + int((TIPC_UPPER - TIPC_LOWER) / 2), 0)
+        cli.sendto(MSG, sendaddr)
+
+        msg, recvaddr = srv.recvfrom(1024)
+
+        self.assertEqual(cli.getsockname(), recvaddr)
+        self.assertEqual(msg, MSG)
+
+
+class TIPCThreadableTest (unittest.TestCase, ThreadableTest):
+    def __init__(self, methodName = 'runTest'):
+        unittest.TestCase.__init__(self, methodName = methodName)
+        ThreadableTest.__init__(self)
+
+    def setUp(self):
+        self.srv = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM)
+        self.srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE,
+                TIPC_LOWER, TIPC_UPPER)
+        self.srv.bind(srvaddr)
+        self.srv.listen(5)
+        self.serverExplicitReady()
+        self.conn, self.connaddr = self.srv.accept()
+
+    def clientSetUp(self):
+        # The is a hittable race between serverExplicitReady() and the
+        # accept() call; sleep a little while to avoid it, otherwise
+        # we could get an exception
+        time.sleep(0.1)
+        self.cli = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM)
+        addr = (socket.TIPC_ADDR_NAME, TIPC_STYPE,
+                TIPC_LOWER + int((TIPC_UPPER - TIPC_LOWER) / 2), 0)
+        self.cli.connect(addr)
+        self.cliaddr = self.cli.getsockname()
+
+    def testStream(self):
+        msg = self.conn.recv(1024)
+        self.assertEqual(msg, MSG)
+        self.assertEqual(self.cliaddr, self.connaddr)
+
+    def _testStream(self):
+        self.cli.send(MSG)
+        self.cli.close()
+
+
 def test_main():
     tests = [GeneralModuleTests, BasicTCPTest, TCPCloserTest, TCPTimeoutTest,
              TestExceptions, BufferIOTest, BasicTCPTest2]
@@ -1134,6 +1213,9 @@
         tests.append(BasicSocketPairTest)
     if sys.platform == 'linux2':
         tests.append(TestLinuxAbstractNamespace)
+    if isTipcAvailable():
+        tests.append(TIPCTest)
+    tests.append(TIPCThreadableTest)
 
     thread_info = test_support.threading_setup()
     test_support.run_unittest(*tests)