StringWithSubstringTest.testStringNonEmptyWithEmptySubstringFail: String 'referenceA'(okay) has substring().
StringWithSubstringTest.testStringNonEmptyWithMatchingPostfixFail: String 'referenceA'(okay) has substring(ay).
StringWithSubstringTest.testStringNonEmptyWithSelfSubstringFailMessage: String 'referenceA'(okay) has substring(okay). Extra info goes here.
StringWithSubstringTest.testStringNonEmptyWithMatchingSubstringFailMessage: String 'referenceA'(okay) has substring(ka). Extra info goes here.
StringWithSubstringTest.testStringEmptyWithEmptySubstringFail: String 'referenceA'() has substring().
StringWithSubstringTest.testStringNonEmptyWithMatchingPrefixFail: String 'referenceA'(okay) has substring(ok).