lucene/analysis/kuromoji/src/test/org/apache/lucene/analysis/ja/TestJapaneseIterationMarkCharFilterFactory.java

/*
 * 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.
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package org.apache.lucene.analysis.ja;

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;

/** Simple tests for {@link JapaneseIterationMarkCharFilterFactory} */
public class TestJapaneseIterationMarkCharFilterFactory extends BaseTokenStreamTestCase {

  public void testIterationMarksWithKeywordTokenizer() throws IOException {
    final String text = "時々馬鹿々々しいところゞゝゝミスヾ";
    JapaneseIterationMarkCharFilterFactory filterFactory =
        new JapaneseIterationMarkCharFilterFactory(new HashMap<String, String>());
    Reader filter = filterFactory.create(new StringReader(text));
    TokenStream tokenStream = new MockTokenizer(MockTokenizer.KEYWORD, false);
    ((Tokenizer) tokenStream).setReader(filter);
    assertTokenStreamContents(tokenStream, new String[] {"時時馬鹿馬鹿しいところどころミスズ"});
  }

  public void testIterationMarksWithJapaneseTokenizer() throws IOException {
    JapaneseTokenizerFactory tokenizerFactory =
        new JapaneseTokenizerFactory(new HashMap<String, String>());
    tokenizerFactory.inform(new StringMockResourceLoader(""));

    JapaneseIterationMarkCharFilterFactory filterFactory =
        new JapaneseIterationMarkCharFilterFactory(new HashMap<String, String>());
    Reader filter = filterFactory.create(new StringReader("時々馬鹿々々しいところゞゝゝミスヾ"));
    TokenStream tokenStream = tokenizerFactory.create(newAttributeFactory());
    ((Tokenizer) tokenStream).setReader(filter);
    assertTokenStreamContents(tokenStream, new String[] {"時時", "馬鹿馬鹿しい", "ところどころ", "ミ", "スズ"});
  }

  public void testKanjiOnlyIterationMarksWithJapaneseTokenizer() throws IOException {
    JapaneseTokenizerFactory tokenizerFactory =
        new JapaneseTokenizerFactory(new HashMap<String, String>());
    tokenizerFactory.inform(new StringMockResourceLoader(""));

    Map<String, String> filterArgs = new HashMap<>();
    filterArgs.put("normalizeKanji", "true");
    filterArgs.put("normalizeKana", "false");
    JapaneseIterationMarkCharFilterFactory filterFactory =
        new JapaneseIterationMarkCharFilterFactory(filterArgs);

    Reader filter = filterFactory.create(new StringReader("時々馬鹿々々しいところゞゝゝミスヾ"));
    TokenStream tokenStream = tokenizerFactory.create(newAttributeFactory());
    ((Tokenizer) tokenStream).setReader(filter);
    assertTokenStreamContents(
        tokenStream, new String[] {"時時", "馬鹿馬鹿しい", "ところ", "ゞ", "ゝ", "ゝ", "ミス", "ヾ"});
  }

  public void testKanaOnlyIterationMarksWithJapaneseTokenizer() throws IOException {
    JapaneseTokenizerFactory tokenizerFactory =
        new JapaneseTokenizerFactory(new HashMap<String, String>());
    tokenizerFactory.inform(new StringMockResourceLoader(""));

    Map<String, String> filterArgs = new HashMap<>();
    filterArgs.put("normalizeKanji", "false");
    filterArgs.put("normalizeKana", "true");
    JapaneseIterationMarkCharFilterFactory filterFactory =
        new JapaneseIterationMarkCharFilterFactory(filterArgs);

    Reader filter = filterFactory.create(new StringReader("時々馬鹿々々しいところゞゝゝミスヾ"));
    TokenStream tokenStream = tokenizerFactory.create(newAttributeFactory());
    ((Tokenizer) tokenStream).setReader(filter);
    assertTokenStreamContents(
        tokenStream, new String[] {"時々", "馬鹿", "々", "々", "しい", "ところどころ", "ミ", "スズ"});
  }

  /** Test that bogus arguments result in exception */
  public void testBogusArguments() throws Exception {
    IllegalArgumentException expected =
        expectThrows(
            IllegalArgumentException.class,
            () -> {
              new JapaneseIterationMarkCharFilterFactory(
                  new HashMap<String, String>() {
                    {
                      put("bogusArg", "bogusValue");
                    }
                  });
            });
    assertTrue(expected.getMessage().contains("Unknown parameters"));
  }
}