testLineTooLong: Ensure server processed incoming message before reading from the other client (#288)

Author: progval

irctest/server_tests/messages.py

@@ -140,9 +140,9 @@ def testLineTooLong(self):
         self.joinChannel(1, "#xyz")
         monsterMessage = "@+clientOnlyTagExample=" + "a" * 4096 + " PRIVMSG #xyz hi!"
         self.sendLine(1, monsterMessage)
-        self.assertEqual(self.getMessages(2), [], "overflowing message was relayed")
         replies = self.getMessages(1)
         self.assertIn(ERR_INPUTTOOLONG, set(reply.command for reply in replies))
+        self.assertEqual(self.getMessages(2), [], "overflowing message was relayed")
 
 
 class LengthLimitTestCase(cases.BaseServerTestCase):