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


import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;

/**
 * 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"));
  }
}