--- a/Lib/test/test_ftplib.py	Sat May 07 16:06:59 2011 +0200
+++ b/Lib/test/test_ftplib.py	Sat May 07 16:59:22 2011 +0200
@@ -81,6 +81,8 @@
 
     def __init__(self, conn):
         asynchat.async_chat.__init__(self, conn)
+        # tells the socket to handle urgent data inline (ABOR command)
+        self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_OOBINLINE, 1)
         self.set_terminator(b"\r\n")
         self.in_buffer = []
         self.dtp = None
@@ -202,6 +204,9 @@
         self.push('221 quit ok')
         self.close()
 
+    def cmd_abor(self, arg):
+        self.push('226 abor ok')
+
     def cmd_stor(self, arg):
         self.push('125 stor ok')
 
@@ -520,6 +525,9 @@
         # Ensure the connection gets closed; sock attribute should be None
         self.assertEqual(self.client.sock, None)
 
+    def test_abort(self):
+        self.client.abort()
+
     def test_retrbinary(self):
         def callback(data):
             received.append(data.decode('ascii'))