@Override
		public StreamDefinition findOne(String id) {
			StreamDefinition sd = data.get(id);
			if (debugRepository) {
				System.out.println(System.identityHashCode(this) + " repository findOne(" + id + ") returning " + sd);
			}
			return sd;
		}
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