X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=test%2Ftools%2Ffastbgp%2Fplay.py;fp=test%2Ftools%2Ffastbgp%2Fplay.py;h=47a801da2ffc55b18d8aaab1aab678ca8fe9f1e6;hb=cc36b6e84076204e10fc56d1b0c8b020ded2eb81;hp=d42176ac09fa38ed33c6b2b8fe9ce7781a07b465;hpb=d218a0def7d735bee748428e0fe465cc19a6190a;p=integration%2Ftest.git

diff --git a/test/tools/fastbgp/play.py b/test/tools/fastbgp/play.py
index d42176ac09..47a801da2f 100644
--- a/test/tools/fastbgp/play.py
+++ b/test/tools/fastbgp/play.py
@@ -95,8 +95,17 @@ class MessageError(ValueError):
         super(MessageError, self).__init__(text, message, *args)
 
     def __str__(self):
-        """Concatenate text comment, space and hexlified message."""
-        return self.text + ' ' + binascii.hexlify(self.msg)
+        """
+        Generate human readable error message
+
+        Concatenate text comment, colon with space
+        and hexlified message. Use a placeholder string
+        if the message turns out to be empty.
+        """
+        message = binascii.hexlify(self.msg)
+        if message == "":
+            message = "(empty message)"
+        return self.text + ': ' + message
 
 
 def read_open_message(bgp_socket):