public void destroyCreatedStreams() {
		for (int s = streams.size() - 1; s >= 0; s--) {
			String streamname = streams.get(s);
			CommandResult cr = executeCommand("stream destroy --name " + streamname);
			stateVerifier.waitForDestroy(streamname);
			assertTrue("Failure to destroy stream " + streamname + ".  CommandResult = " + cr.toString(),
					cr.isSuccess());
		}
	}
Destroy all streams that were created using the 'create' method. Commonly called in a @After annotated method
spring-xd-shell/src/test/java/org/springframework/xd/shell/command/StreamCommandsTemplate.java