@Test
	public void sourceTapChannel() {
		StreamNode ast = parse("tap:queue:xxy > file");
		assertEquals("[(tap:queue:xxy:0>13)>(ModuleNode:file:16>20)]", 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