protected void executeStreamDestroy(String... streamNames) {
		for (String streamName : streamNames) {
			CommandResult cr = executeCommand("stream destroy --name " + streamName);
			assertTrue("Failure to destroy stream " + streamName + ".  CommandResult = " + cr.toString(),
					cr.isSuccess());
			jobStateVerifier.waitForDestroy(streamName);
		}
	}
Execute 'job destroy' for the supplied job names
spring-xd-shell/src/test/java/org/springframework/xd/shell/command/AbstractJobIntegrationTest.java