TestStringHelper.java

package org.apache.lucene.util;

/**
 * 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 org.apache.lucene.util.LuceneTestCase;

public class TestStringHelper extends LuceneTestCase {


  public void testStringDifference() {
    String test1 = "test";
    String test2 = "testing";
    
    int result = StringHelper.stringDifference(test1, test2);
    assertTrue(result == 4);
    
    test2 = "foo";
    result = StringHelper.stringDifference(test1, test2);
    assertTrue(result == 0);
    
    test2 = "test";
    result = StringHelper.stringDifference(test1, test2);
    assertTrue(result == 4);
  }
}