--- /dev/null
+package org.apache.lucene.analysis.bg;
+
+/**
+ * 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.
+ */
+
+import java.io.IOException;
+import java.io.StringReader;
+
+import org.apache.lucene.analysis.BaseTokenStreamTestCase;
+import org.apache.lucene.analysis.CharArraySet;
+import org.apache.lucene.analysis.KeywordMarkerFilter;
+import org.apache.lucene.analysis.MockTokenizer;
+import org.apache.lucene.util.Version;
+
+/**
+ * Test the Bulgarian Stemmer
+ */
+public class TestBulgarianStemmer extends BaseTokenStreamTestCase {
+ /**
+ * Test showing how masculine noun forms conflate. An example noun for each
+ * common (and some rare) plural pattern is listed.
+ */
+ public void testMasculineNouns() throws IOException {
+ BulgarianAnalyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
+
+ // -и pattern
+ assertAnalyzesTo(a, "град", new String[] {"град"});
+ assertAnalyzesTo(a, "града", new String[] {"град"});
+ assertAnalyzesTo(a, "градът", new String[] {"град"});
+ assertAnalyzesTo(a, "градове", new String[] {"град"});
+ assertAnalyzesTo(a, "градовете", new String[] {"град"});
+
+ // -ове pattern
+ assertAnalyzesTo(a, "народ", new String[] {"народ"});
+ assertAnalyzesTo(a, "народа", new String[] {"народ"});
+ assertAnalyzesTo(a, "народът", new String[] {"народ"});
+ assertAnalyzesTo(a, "народи", new String[] {"народ"});
+ assertAnalyzesTo(a, "народите", new String[] {"народ"});
+ assertAnalyzesTo(a, "народе", new String[] {"народ"});
+
+ // -ища pattern
+ assertAnalyzesTo(a, "път", new String[] {"път"});
+ assertAnalyzesTo(a, "пътя", new String[] {"път"});
+ assertAnalyzesTo(a, "пътят", new String[] {"път"});
+ assertAnalyzesTo(a, "пътища", new String[] {"път"});
+ assertAnalyzesTo(a, "пътищата", new String[] {"път"});
+
+ // -чета pattern
+ assertAnalyzesTo(a, "градец", new String[] {"градец"});
+ assertAnalyzesTo(a, "градеца", new String[] {"градец"});
+ assertAnalyzesTo(a, "градецът", new String[] {"градец"});
+ /* note the below forms conflate with each other, but not the rest */
+ assertAnalyzesTo(a, "градовце", new String[] {"градовц"});
+ assertAnalyzesTo(a, "градовцете", new String[] {"градовц"});
+
+ // -овци pattern
+ assertAnalyzesTo(a, "дядо", new String[] {"дяд"});
+ assertAnalyzesTo(a, "дядото", new String[] {"дяд"});
+ assertAnalyzesTo(a, "дядовци", new String[] {"дяд"});
+ assertAnalyzesTo(a, "дядовците", new String[] {"дяд"});
+
+ // -е pattern
+ assertAnalyzesTo(a, "мъж", new String[] {"мъж"});
+ assertAnalyzesTo(a, "мъжа", new String[] {"мъж"});
+ assertAnalyzesTo(a, "мъже", new String[] {"мъж"});
+ assertAnalyzesTo(a, "мъжете", new String[] {"мъж"});
+ assertAnalyzesTo(a, "мъжо", new String[] {"мъж"});
+ /* word is too short, will not remove -ът */
+ assertAnalyzesTo(a, "мъжът", new String[] {"мъжът"});
+
+ // -а pattern
+ assertAnalyzesTo(a, "крак", new String[] {"крак"});
+ assertAnalyzesTo(a, "крака", new String[] {"крак"});
+ assertAnalyzesTo(a, "кракът", new String[] {"крак"});
+ assertAnalyzesTo(a, "краката", new String[] {"крак"});
+
+ // брат
+ assertAnalyzesTo(a, "брат", new String[] {"брат"});
+ assertAnalyzesTo(a, "брата", new String[] {"брат"});
+ assertAnalyzesTo(a, "братът", new String[] {"брат"});
+ assertAnalyzesTo(a, "братя", new String[] {"брат"});
+ assertAnalyzesTo(a, "братята", new String[] {"брат"});
+ assertAnalyzesTo(a, "брате", new String[] {"брат"});
+ }
+
+ /**
+ * Test showing how feminine noun forms conflate
+ */
+ public void testFeminineNouns() throws IOException {
+ BulgarianAnalyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
+
+ assertAnalyzesTo(a, "вест", new String[] {"вест"});
+ assertAnalyzesTo(a, "вестта", new String[] {"вест"});
+ assertAnalyzesTo(a, "вести", new String[] {"вест"});
+ assertAnalyzesTo(a, "вестите", new String[] {"вест"});
+ }
+
+ /**
+ * Test showing how neuter noun forms conflate an example noun for each common
+ * plural pattern is listed
+ */
+ public void testNeuterNouns() throws IOException {
+ BulgarianAnalyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
+
+ // -а pattern
+ assertAnalyzesTo(a, "дърво", new String[] {"дърв"});
+ assertAnalyzesTo(a, "дървото", new String[] {"дърв"});
+ assertAnalyzesTo(a, "дърва", new String[] {"дърв"});
+ assertAnalyzesTo(a, "дървета", new String[] {"дърв"});
+ assertAnalyzesTo(a, "дървата", new String[] {"дърв"});
+ assertAnalyzesTo(a, "дърветата", new String[] {"дърв"});
+
+ // -та pattern
+ assertAnalyzesTo(a, "море", new String[] {"мор"});
+ assertAnalyzesTo(a, "морето", new String[] {"мор"});
+ assertAnalyzesTo(a, "морета", new String[] {"мор"});
+ assertAnalyzesTo(a, "моретата", new String[] {"мор"});
+
+ // -я pattern
+ assertAnalyzesTo(a, "изключение", new String[] {"изключени"});
+ assertAnalyzesTo(a, "изключението", new String[] {"изключени"});
+ assertAnalyzesTo(a, "изключенията", new String[] {"изключени"});
+ /* note the below form in this example does not conflate with the rest */
+ assertAnalyzesTo(a, "изключения", new String[] {"изключн"});
+ }
+
+ /**
+ * Test showing how adjectival forms conflate
+ */
+ public void testAdjectives() throws IOException {
+ BulgarianAnalyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
+ assertAnalyzesTo(a, "красив", new String[] {"красив"});
+ assertAnalyzesTo(a, "красивия", new String[] {"красив"});
+ assertAnalyzesTo(a, "красивият", new String[] {"красив"});
+ assertAnalyzesTo(a, "красива", new String[] {"красив"});
+ assertAnalyzesTo(a, "красивата", new String[] {"красив"});
+ assertAnalyzesTo(a, "красиво", new String[] {"красив"});
+ assertAnalyzesTo(a, "красивото", new String[] {"красив"});
+ assertAnalyzesTo(a, "красиви", new String[] {"красив"});
+ assertAnalyzesTo(a, "красивите", new String[] {"красив"});
+ }
+
+ /**
+ * Test some exceptional rules, implemented as rewrites.
+ */
+ public void testExceptions() throws IOException {
+ BulgarianAnalyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
+
+ // ци -> к
+ assertAnalyzesTo(a, "собственик", new String[] {"собственик"});
+ assertAnalyzesTo(a, "собственика", new String[] {"собственик"});
+ assertAnalyzesTo(a, "собственикът", new String[] {"собственик"});
+ assertAnalyzesTo(a, "собственици", new String[] {"собственик"});
+ assertAnalyzesTo(a, "собствениците", new String[] {"собственик"});
+
+ // зи -> г
+ assertAnalyzesTo(a, "подлог", new String[] {"подлог"});
+ assertAnalyzesTo(a, "подлога", new String[] {"подлог"});
+ assertAnalyzesTo(a, "подлогът", new String[] {"подлог"});
+ assertAnalyzesTo(a, "подлози", new String[] {"подлог"});
+ assertAnalyzesTo(a, "подлозите", new String[] {"подлог"});
+
+ // си -> х
+ assertAnalyzesTo(a, "кожух", new String[] {"кожух"});
+ assertAnalyzesTo(a, "кожуха", new String[] {"кожух"});
+ assertAnalyzesTo(a, "кожухът", new String[] {"кожух"});
+ assertAnalyzesTo(a, "кожуси", new String[] {"кожух"});
+ assertAnalyzesTo(a, "кожусите", new String[] {"кожух"});
+
+ // ъ deletion
+ assertAnalyzesTo(a, "център", new String[] {"центр"});
+ assertAnalyzesTo(a, "центъра", new String[] {"центр"});
+ assertAnalyzesTo(a, "центърът", new String[] {"центр"});
+ assertAnalyzesTo(a, "центрове", new String[] {"центр"});
+ assertAnalyzesTo(a, "центровете", new String[] {"центр"});
+
+ // е*и -> я*
+ assertAnalyzesTo(a, "промяна", new String[] {"промян"});
+ assertAnalyzesTo(a, "промяната", new String[] {"промян"});
+ assertAnalyzesTo(a, "промени", new String[] {"промян"});
+ assertAnalyzesTo(a, "промените", new String[] {"промян"});
+
+ // ен -> н
+ assertAnalyzesTo(a, "песен", new String[] {"песн"});
+ assertAnalyzesTo(a, "песента", new String[] {"песн"});
+ assertAnalyzesTo(a, "песни", new String[] {"песн"});
+ assertAnalyzesTo(a, "песните", new String[] {"песн"});
+
+ // -еве -> й
+ // note: this is the only word i think this rule works for.
+ // most -еве pluralized nouns are monosyllabic,
+ // and the stemmer requires length > 6...
+ assertAnalyzesTo(a, "строй", new String[] {"строй"});
+ assertAnalyzesTo(a, "строеве", new String[] {"строй"});
+ assertAnalyzesTo(a, "строевете", new String[] {"строй"});
+ /* note the below forms conflate with each other, but not the rest */
+ assertAnalyzesTo(a, "строя", new String[] {"стр"});
+ assertAnalyzesTo(a, "строят", new String[] {"стр"});
+ }
+
+ public void testWithKeywordAttribute() throws IOException {
+ CharArraySet set = new CharArraySet(Version.LUCENE_31, 1, true);
+ set.add("строеве");
+ MockTokenizer tokenStream = new MockTokenizer(new StringReader("строевете строеве"), MockTokenizer.WHITESPACE, false);
+
+ BulgarianStemFilter filter = new BulgarianStemFilter(
+ new KeywordMarkerFilter(tokenStream, set));
+ assertTokenStreamContents(filter, new String[] { "строй", "строеве" });
+ }
+}
fnp / pylucene.git / blobdiff