StringWithoutPrefixTest.testStringNonEmptyWithNullPrefixFail: String 'referenceA'(okay) does NOT have prefix(null). StringWithoutPrefixTest.testStringNullWithEmptyPrefixFail: String 'referenceA'(null) does NOT have prefix(). StringWithoutPrefixTest.testStringEmptyWithNullPrefixFail: String 'referenceA'() does NOT have prefix(null). StringWithoutPrefixTest.testStringNullWithNullPrefixFail: String 'referenceA'(null) does NOT have prefix(null). StringWithoutPrefixTest.testStringNonEmptyWithNonMatchingPrefixFailMessage: String 'referenceA'(okay) does NOT have prefix(xyz). addition info.