code: /* LanguageTool, a natural language style checker
   * Copyright (C) 2013 Andriy Rysin
   *
   * 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.uk;
  
  import org.junit.Test;
  import org.languagetool.JLanguageTool;
  import org.languagetool.TestTools;
  import org.languagetool.language.Ukrainian;
  import org.languagetool.rules.RuleMatch;
  
  import java.io.IOException;
  import java.util.Arrays;
  
  import static org.junit.Assert.assertEquals;
  
  public class HiddenCharacterRuleTest {
  
    @Test
    public void testRule() throws IOException {
      HiddenCharacterRule rule = new HiddenCharacterRule(TestTools.getMessages("uk"));
      JLanguageTool lt = new JLanguageTool(new Ukrainian());
  
      // correct sentences:
      assertEquals(0, rule.match(lt.getAnalyzedSentence("сміття")).length);
  
      //incorrect sentences:
  
      RuleMatch[] matches = rule.match(lt.getAnalyzedSentence("смі\u00ADття"));
      // check match positions:
      assertEquals(1, matches.length);
      assertEquals(Arrays.asList("сміття"), matches[0].getSuggestedReplacements());
    }
  
  }
  