StringNullOrEmptyTest.testStringNullFail: String 'referenceA'(null) is null or empty(). StringNullOrEmptyTest.testStringNullOrEmptyFailNoMessage: String 'referenceA'(null) is null or empty(). StringNullOrEmptyTest.testStringNullOrEmptyFailMessage: String 'referenceA'() is null or empty(). Extra info goes here.