### Question:
RabbitmqClientDemo implements ClientDemo { public ConnectionFactory connectionFactory(){ ConnectionFactory connectionFactory = new ConnectionFactory(); connectionFactory.setHost("dev"); connectionFactory.setPort(5672); connectionFactory.setUsername("admin"); connectionFactory.setPassword("admin"); connectionFactory.setVirtualHost("/learn"); return connectionFactory; }  ConnectionFactory connectionFactory(); Connection connection(ConnectionFactory connectionFactory); @Override void declareQueue();  }### Answer:
@Test void connectionFactory() { }