@Test(expected = InvalidSyntaxException.class)
public void testTeeFirstOfSubpipe() throws Exception {

	String sample = "./src/test/resources/tee-first-of-subpipe.xml";
    GauloisPipe piper = new GauloisPipe(configFactory);
    ConfigUtil cu = new ConfigUtil(configFactory.getConfiguration(), piper.getUriResolver(), sample);
    Config config = cu.buildConfig(emptyInputParams);
    config.verify();     
}