@Test
	public void errorMissingJob() {
		// Only single & between jobs
		checkForParseError("<aa && bb>", JobDSLMessage.EXPECTED_JOB_REF_OR_DEF, 5);
	}
Parse job specifications and verify either the correct abstract syntax tree is produced or the current exception comes out.
The parser does no semantic validation, it is purely syntax checking.

@author Andy Clement
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/job/dsl/JobParserTests.java