/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package opennlp.tools.postag;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import opennlp.tools.cmdline.postag.POSEvaluationErrorListener;
import opennlp.tools.util.InvalidFormatException;
import opennlp.tools.util.Sequence;
public class POSEvaluatorTest {
@Test
public void testPositive() throws InvalidFormatException {
OutputStream stream = new ByteArrayOutputStream();
POSTaggerEvaluationMonitor listener = new POSEvaluationErrorListener(stream);
POSEvaluator eval = new POSEvaluator(new DummyPOSTagger(
POSSampleTest.createGoldSample()), listener);
eval.evaluateSample(POSSampleTest.createGoldSample());
Assert.assertEquals(1.0, eval.getWordAccuracy(), 0.0);
Assert.assertEquals(0, stream.toString().length());
}
@Test
public void testNegative() throws InvalidFormatException {
OutputStream stream = new ByteArrayOutputStream();
POSTaggerEvaluationMonitor listener = new POSEvaluationErrorListener(stream);
POSEvaluator eval = new POSEvaluator(
new DummyPOSTagger(POSSampleTest.createGoldSample()), listener);
eval.evaluateSample(POSSampleTest.createPredSample());
Assert.assertEquals(.7, eval.getWordAccuracy(), .1d);
Assert.assertNotSame(0, stream.toString().length());
}
class DummyPOSTagger implements POSTagger {
private POSSample sample;
public DummyPOSTagger(POSSample sample) {
this.sample = sample;
}
public List<String> tag(List<String> sentence) {
return Arrays.asList(sample.getTags());
}
public String[] tag(String[] sentence) {
return sample.getTags();
}
public String tag(String sentence) {
return null;
}
public Sequence[] topKSequences(List<String> sentence) {
return null;
}
public Sequence[] topKSequences(String[] sentence) {
return null;
}
public String[] tag(String[] sentence, Object[] additionaContext) {
return tag(sentence);
}
public Sequence[] topKSequences(String[] sentence, Object[] additionaContext) {
return topKSequences(sentence);
}
}
}