@Test
	public void moduleLabels() {
		StreamNode ast = parse("label: http");
		assertEquals("[((Label:label:0>5) ModuleNode:http:0>11)]", ast.stringify(true));
	}
Parse streams and verify either the correct abstract syntax tree is produced or the current exception comes out.

@author Andy Clement
@author David Turanski
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/dsl/StreamConfigParserTests.java