@Override
	public MessageChannel bindDynamicPubSubProducer(String name, Properties properties) {
		this.topics.add(name);
		return this.messageBus.bindDynamicPubSubProducer(name, properties);
	}
Abstract class that adds test support for {@link MessageBus}.

@author Ilayaperumal Gopinathan
@author Gary Russell
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/integration/bus/AbstractTestMessageBus.java