public TwitterStreamSource twitterStream() {
		return new TwitterStreamSource(xdEnvironment.getTwitterConsumerKey(),
				xdEnvironment.getTwitterConsumerSecretKey(), xdEnvironment.getTwitterAccessToken(),
				xdEnvironment.getTwitterAccessTokenSecret());
	}
Construct a TwitterStreamSource fixture..

@return An instance of the twitterStreamSource fixture.
spring-xd-integration-test/src/main/java/org/springframework/xd/integration/fixtures/Sources.java