testplaintextdictionary.java

Lucene a java open-source SearchEngine Framework

package org.apache.lucene.search.spell;

/**
 * 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 junit.framework.TestCase;

import org.apache.lucene.store.RAMDirectory;

/**
 * Test case for PlainTextDictionary
 *
 * @author Daniel Naber
 */
public class TestPlainTextDictionary extends TestCase {

  public void testBuild() throws IOException {
    final String LF = System.getProperty("line.separator");
    String input = "oneword" + LF + "twoword" + LF + "threeword";
    PlainTextDictionary ptd = new PlainTextDictionary(new StringReader(input));
    RAMDirectory ramDir = new RAMDirectory();
    SpellChecker spellChecker = new SpellChecker(ramDir);
    spellChecker.indexDictionary(ptd);
    String[] similar = spellChecker.suggestSimilar("treeword", 2);
    assertEquals(2, similar.length);
    assertEquals(similar[0], "threeword");
    assertEquals(similar[1], "twoword");
  }

}