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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.language.opennlp;
import com.yahoo.language.Language;
import com.yahoo.language.detect.Detector;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @author jonmv
*/
public class OpenNlpDetectorTestCase {
@Test
public void testDetection() {
Detector detector = new OpenNlpDetector();
assertLanguage(Language.UNKNOWN,
"",
detector);
assertLanguage(Language.UNKNOWN,
"Hello!",
detector);
// from https://en.wikipedia.org/wiki/Yahoo
assertLanguage(Language.ENGLISH,
"Yahoo became a public company via an initial public offering in April 1996 and its stock price rose 600% within two years.",
detector);
// from https://de.wikipedia.org/wiki/Yahoo
assertLanguage(Language.GERMAN,
"1996 ging Yahoo mit 46 Angestellten an die Börse. 2009 arbeiteten insgesamt rund 13.500 Mitarbeiter für Yahoo.",
detector);
// from https://fr.wikipedia.org/wiki/Yahoo
assertLanguage(Language.FRENCH,
"À l'origine, Yahoo! était uniquement un annuaire Web.",
detector);
// Test fallback to SimpleDetector
assertLanguage(Language.CHINESE_TRADITIONAL, // CHINESE_SIMPLIFIED input
"\u6211\u80FD\u541E\u4E0B\u73BB\u7483\u800C\u4E0D\u4F24\u8EAB\u4F53\u3002",
detector);
// from https://ru.wikipedia.org/wiki/%D0%A0%D0%BE%D1%81%D1%81%D0%B8%D1%8F
assertLanguage(Language.RUSSIAN,
"7 февраля 2000 года Yahoo.com подвергся DDoS атаке и на несколько часов приостановил работу.",
detector);
// https://he.wikipedia.org/wiki/Yahoo!
assertLanguage(Language.HEBREW,
"אתר יאהו! הוא אחד מאתרי האינטרנט הפופולריים ביותר בעולם, עם מעל 500 מיליון כניסות בכל יום",
detector);
}
private void assertLanguage(Language language, String input, Detector detector) {
assertEquals(language, detector.detect(input, null).getLanguage());
}
}
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