@Test
	public void expressions_xd159_2() {
		// need quotes around an argument value with a space in it
		checkForParseError("foo | transform --expression=new StringBuilder(payload).reverse() | bar",
				XDDSLMessages.UNEXPECTED_DATA, 46);
	}
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