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.ru;
  
  import org.junit.Before;
  import org.junit.Test;
  import org.languagetool.*;
  import org.languagetool.rules.Rule;
  import org.languagetool.rules.RuleMatch;
  
  import java.io.IOException;
  import java.util.Arrays;
  
  import static org.junit.Assert.assertEquals;
  
  public class RussianDashRuleTest {
  
    private JLanguageTool lt;
    private Rule rule;
  
    @Before
    public void setUp() {
      Language lang = Languages.getLanguageForShortCode("ru");
      lt = new JLanguageTool(lang);
      rule = new RussianDashRule(JLanguageTool.getMessageBundle(lang));
    }
  
    @Test
    public void testRule() throws IOException {
      // correct sentences:
      check(0, "Он вышел из-за забора.");
      check(0, "Ростов-на-Дону.");
      check(0, "ведром — работай");
      // incorrect sentences:
      check(1, "из—за", new String[]{"из-за"});
      check(1, "Ростов — на — Дону", new String[]{"Ростов-на-Дону"});
    }
  
    private void check(int expectedErrors, String text) throws IOException {
      check(expectedErrors, text, null);
    }
  
    private void check(int expectedErrors, String text, String[] expSuggestions) throws IOException {
      RuleMatch[] ruleMatches = rule.match(lt.getAnalyzedSentence(text));
      assertEquals("Expected " + expectedErrors + " errors, but got: " + Arrays.toString(ruleMatches),
          expectedErrors, ruleMatches.length);
      if (expSuggestions != null && expectedErrors != 1) {
        throw new RuntimeException("Sorry, test case can only check suggestion if there's one rule match");
      }
      if (expSuggestions != null) {
        RuleMatch ruleMatch = ruleMatches[0];
        String errorMessage =
            String.format("Got these suggestions: %s, expected %s ", ruleMatch.getSuggestedReplacements(),
                Arrays.toString(expSuggestions));
        assertEquals(errorMessage, expSuggestions.length, ruleMatch.getSuggestedReplacements().size());
        int i = 0;
        for (Object element : ruleMatch.getSuggestedReplacements()) {
          String suggestion = (String) element;
          assertEquals(expSuggestions[i], suggestion);
          i++;
        }
      }
    }
  
  }
  