code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2005 Daniel Naber (http://www.danielnaber.de)
   * 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
   * USA
   */
  package org.languagetool.rules.en;
  
  import org.junit.Test;
  import org.languagetool.JLanguageTool;
  import org.languagetool.Language;
  import org.languagetool.Languages;
  import org.languagetool.TestTools;
  import org.languagetool.rules.RuleMatch;
  import org.languagetool.rules.WordRepeatRule;
  
  import java.io.IOException;
  
  import static org.junit.Assert.assertEquals;
  
  public class WordRepeatRuleTest {
  
    private final Language english = Languages.getLanguageForShortCode("en");
    private final WordRepeatRule rule = new WordRepeatRule(TestTools.getEnglishMessages(), english);
    private final JLanguageTool lt = new JLanguageTool(english);
  
    @Test
    public void testRule() throws IOException {
      assertMatches("This is a test sentence.", 0);
      assertMatches("This is a test sentence...", 0);
  
      // make sure we ignore immunized tokens
      assertMatches("And side to side and top to bottom...", 0);
  
      assertMatches("This this is a test sentence.", 1);
      assertMatches("This is a test sentence sentence.", 1);
      assertMatches("This is is a a test sentence sentence.", 3);
    }
  
    private void assertMatches(String input, int expectedMatches) throws IOException {
      RuleMatch[] matches = rule.match(lt.getAnalyzedSentence(input));
      assertEquals(expectedMatches, matches.length);
    }
  
  }
  