### Question:
ClassificationResult { public String getErrorMessage() { return errorMessage; } ClassificationResult(String errorMessage);  ClassificationResult(List<String> matches); String getErrorMessage(); boolean isSuccessfull();  }### Answer:
@Test public void testGetErrorMessage() { assertEquals(resultOk.getErrorMessage(), ClassificationResult.DEFAULT_ERROR_MESSAGE); assertEquals(resultError.getErrorMessage(), ERROR_MESSAGE); }