@Test
	public final void testRoutingWithSpel() throws InterruptedException {
		final StreamDefinition routerDefinition = new StreamDefinition("routerDefinition",
				QUEUE_ROUTE + " > router --expression=payload.contains('a')?'" + QUEUE_FOO + "':'" + QUEUE_BAR + "'");
		doTest(routerDefinition);
	}
Get the stream 'http | log' with random available http port selected.

@return the stream
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/AbstractSingleNodeStreamDeploymentIntegrationTests.java