code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2009 Marcin Miłkowski (http://www.languagetool.org)
   * 
   * 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.tools;
  
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.languagetool.JLanguageTool;
  import org.languagetool.Language;
  import org.languagetool.Languages;
  import org.languagetool.ResultCache;
  import org.languagetool.rules.RuleMatch;
  import org.languagetool.rules.bitext.BitextRule;
  import org.xml.sax.SAXException;
  
  import javax.xml.parsers.ParserConfigurationException;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.PrintStream;
  import java.util.List;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.core.Is.is;
  import static org.junit.Assert.assertEquals;
  
  public class ToolsTest {
  
    private PrintStream stdout;
    private PrintStream stderr;
  
    @Before
    public void setUp() throws Exception {
      this.stdout = System.out;
      this.stderr = System.err;
      ByteArrayOutputStream out = new ByteArrayOutputStream();
      ByteArrayOutputStream err = new ByteArrayOutputStream();
      System.setOut(new PrintStream(out));
      System.setErr(new PrintStream(err));
    }
  
    @After
    public void tearDown() throws Exception {
      System.setOut(this.stdout);
      System.setErr(this.stderr);
    }
  
    @Test
    public void testBitextCheck() throws IOException, ParserConfigurationException, SAXException {
      testBitextCheck(null);
      testBitextCheck(new ResultCache(100));
    }
    
    private void testBitextCheck(ResultCache cache) throws IOException, ParserConfigurationException, SAXException {
      Language english = Languages.getLanguageForShortCode("en");
      JLanguageTool srcTool = new JLanguageTool(english, null, cache);
      Language polish = Languages.getLanguageForShortCode("pl");
      JLanguageTool trgTool = new JLanguageTool(polish, null, cache);
      List<BitextRule> rules = Tools.getBitextRules(english, polish);
      
      int matchCount = Tools.checkBitext(
          "This is a perfectly good sentence.",
          "To jest całkowicie prawidłowe zdanie.", srcTool, trgTool, rules).size();
      assertEquals(0, matchCount);
  
      List<RuleMatch> matches1 = Tools.checkBitext(
              "This is not actual.",
              "To nie jest aktualne.",
              srcTool, trgTool, rules);
      assertEquals(1, matches1.size());
      assertThat(matches1.get(0).getRule().getId(), is("ACTUAL"));
      assertThat(matches1.get(0).getFromPos(), is(12));
      assertThat(matches1.get(0).getToPos(), is(20));
  
      List<RuleMatch> matches2 = Tools.checkBitext(
              "A sentence. This is not actual.",
              "Zdanie. To nie jest aktualne.",
              srcTool, trgTool, rules);
      assertEquals(1, matches2.size());
      assertThat(matches2.get(0).getRule().getId(), is("ACTUAL"));
      assertThat(matches2.get(0).getFromPos(), is(20));
      assertThat(matches2.get(0).getToPos(), is(28));
  
      List<RuleMatch> matches3 = Tools.checkBitext(
              "A new sentence. This is not actual.",
              "Nowa zdanie. To nie jest aktualne.",
              srcTool, trgTool, rules);
      assertEquals(1, matches3.size());
      assertThat(matches3.get(0).getRule().getId(), is("ACTUAL"));
      assertThat(matches3.get(0).getFromPos(), is(25));
      assertThat(matches3.get(0).getToPos(), is(33));
    }
  }
  