### Question:
ClassificationResult { public boolean isSuccessfull() { return isSuccessful; } ClassificationResult(String errorMessage);  ClassificationResult(List<MatchBuilder> matches); List<MatchBuilder> getMatchBuilders(); String getErrorMessage(); boolean isSuccessfull();  }### Answer:
@Test public void testIsSuccessfull() { ClassificationResult result1 = new ClassificationResult(errorMessage); assertFalse(result1.isSuccessfull()); ClassificationResult result2 = new ClassificationResult(matches); assertTrue(result2.isSuccessfull()); }