Fix timing issue waiting for two messages

Author: MarcialRosales

selenium/test/authnz-msg-protocols/amqp10.js

@@ -61,7 +61,7 @@ describe('Having AMQP 1.0 protocol enabled and the following auth_backends: ' +
     await untilConnectionEstablished
     var untilMessageReceived = new Promise((resolve, reject) => {
       onAmqp('message', function(context) {
-        resolve()
+        if (receivedAmqpMessageCount == 2) resolve()
       })
     })
     amqp.sender.send({body:'second message'})