show queue status on integration test

it's useful to check queue status to see how backed up the queues
are to pinpoint performance issues.

Change-Id: I85974c1a2a1f8967244867e8241f462689fd1fc1
diff --git a/ceilometer/tests/integration/hooks/post_test_hook.sh b/ceilometer/tests/integration/hooks/post_test_hook.sh
index bea2be8..252d4bc 100755
--- a/ceilometer/tests/integration/hooks/post_test_hook.sh
+++ b/ceilometer/tests/integration/hooks/post_test_hook.sh
@@ -53,6 +53,9 @@
 sudo -E -H -u ${STACK_USER:-${USER}} tox -eintegration
 EXIT_CODE=$?
 
+echo "* Message queue status:"
+sudo rabbitmqctl list_queues | grep -e \\.sample -e \\.info
+
 if [ $EXIT_CODE -ne 0 ] ; then
     set +x
     echo "* Heat stack:"