Index: Lib/test/test_poplib.py
===================================================================
--- Lib/test/test_poplib.py	(revision 74311)
+++ Lib/test/test_poplib.py	(working copy)
@@ -104,6 +104,8 @@
     def cmd_rpop(self, arg):
         self.push('+OK done nothing.')
 
+    def cmd_apop(self, arg):
+        self.push('+OK done nothing.')
 
 class DummyPOP3Server(asyncore.dispatcher, threading.Thread):
 
@@ -209,6 +211,9 @@
     def test_rpop(self):
         self.assertOK(self.client.rpop('foo'))
 
+    def test_apop(self):
+        self.assertOK(self.client.apop('foo', 'dummypassword'))
+
     def test_top(self):
         expected =  (b'+OK 116 bytes',
                      [b'From: postmaster@python.org', b'Content-Type: text/plain',