@Test
public void testEvaluator() throws IOException {
String inPredicted = "opennlp/tools/lemmatizer/output.txt";
String inExpected = "opennlp/tools/lemmatizer/output.txt";
String encoding = "UTF-8";
DummyLemmaSampleStream predictedSample = new DummyLemmaSampleStream(
new PlainTextByLineStream(
new MockInputStreamFactory(new File(inPredicted)), encoding), true);
DummyLemmaSampleStream expectedSample = new DummyLemmaSampleStream(
new PlainTextByLineStream(
new MockInputStreamFactory(new File(inExpected)), encoding), false);
Lemmatizer dummyLemmatizer = new DummyLemmatizer(predictedSample);
OutputStream stream = new ByteArrayOutputStream();
LemmatizerEvaluationMonitor listener = new LemmaEvaluationErrorListener(stream);
LemmatizerEvaluator evaluator = new LemmatizerEvaluator(dummyLemmatizer, listener);
evaluator.evaluate(expectedSample);
Assert.assertEquals(0.9877049180327869, evaluator.getWordAccuracy(), DELTA);
Assert.assertNotSame(stream.toString().length(), 0);
}