rcrowe\Hippy\Queue::add PHP Method

    public function add(MessageInterface $message)
    {
        // Get the next index in the container that we can insert into
        if (count($this->container) > 0) {
            $keys = array_keys($this->container);
            $index = $keys[count($keys) - 1] + 1;
        } else {
            $index = 0;
        }
        $this->container[$index] = $message;
        return $index;
    }

 public function testQueuedMessages()
 {
     $entity = m::mock('Guzzle\\Http\\Message\\EntityEnclosingRequest');
     $entity->shouldReceive('send')->twice();
     $http = m::mock('Guzzle\\Http\\Client');
     $http->shouldReceive('post')->andReturn($entity)->twice();
     $transport = new Guzzle('123', 'cog', 'vivalacrowe');
     $transport->setHttp($http);
     $hippy = new Hippy($transport);
     $queue = new Queue();
     $queue->add(new Message(true, 'red'));
     $queue->add(new Message(false, 'random'));
     $hippy->send($queue);
 }