code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2014 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;
  
  import org.junit.Test;
  import org.languagetool.FakeLanguage;
  import org.languagetool.JLanguageTool;
  import org.languagetool.Language;
  import org.languagetool.TestTools;
  
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.List;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertThat;
  
  public class GenericUnpairedBracketsRuleTest {
  
    private JLanguageTool lt;
  
    @Test
    public void testRule() throws IOException {
      setUpRule(new FakeLanguage());
  
      assertMatches(0, "This is »correct«.");
      assertMatches(0, "»Correct«\n»And »here« it ends.«");
      assertMatches(0, "»Correct. This is more than one sentence.«");
      assertMatches(0, "»Correct. This is more than one sentence.«\n»And »here« it ends.«");
      assertMatches(0, "»Correct«\n\n»And here it ends.«\n\nMore text.");
      assertMatches(0, "»Correct, he said. This is the next sentence.« Here's another sentence.");
      assertMatches(0, "»Correct, he said.\n\nThis is the next sentence.« Here's another sentence.");
      assertMatches(0, "»Correct, he said.\n\n\n\nThis is the next sentence.« Here's another sentence.");
      assertMatches(0, "This »is also »correct««.");
      assertMatches(0, "Good.\n\nThis »is also »correct««.");
      assertMatches(0, "Good.\n\n\nThis »is also »correct««.");
      assertMatches(0, "Good.\n\n\n\nThis »is also »correct««.");
      assertMatches(0, "This is funny :-)");
      assertMatches(0, "This is sad :-( isn't it");
      assertMatches(0, "This is funny :)");
      assertMatches(0, "This is sad :( isn't it");
      assertMatches(0, "a) item one\nb) item two");
      assertMatches(0, "a) item one\nb) item two\nc) item three");
      assertMatches(0, "\na) item one\nb) item two\nc) item three");
      assertMatches(0, "\n\na) item one\nb) item two\nc) item three");
      assertMatches(0, "This is a), not b)");
      assertMatches(0, "This is it (a, not b) some more test");
      assertMatches(0, "This is »not an error yet");
      assertMatches(0, "See https://de.wikipedia.org/wiki/Schlammersdorf_(Adelsgeschlecht)");
  
      assertMatches(1, "This is not correct«");
      assertMatches(1, "This is »not correct.");
      assertMatches(1, "This is »not an error yet\n\nBut now it has become one");
      assertMatches(1, "This is correct.\n\n»But this is not.");
      assertMatches(1, "This is correct.\n\nBut this is not«");
      assertMatches(1, "»This is correct«\n\nBut this is not«");
      assertMatches(1, "»This is correct«\n\nBut this »is« not«");
      assertMatches(1, "This is not correct. No matter if it's more than one sentence«");
      assertMatches(1, "»This is not correct. No matter if it's more than one sentence");
      assertMatches(1, "Correct, he said. This is the next sentence.« Here's another sentence.");
      assertMatches(1, "»Correct, he said. This is the next sentence. Here's another sentence.");
      assertMatches(1, "»Correct, he said. This is the next sentence.\n\nHere's another sentence.");
      assertMatches(1, "»Correct, he said. This is the next sentence.\n\n\n\nHere's another sentence.");
    }
  
    @Test
    public void testRuleMatchPositions() throws IOException {
      setUpRule(new FakeLanguage());
      RuleMatch match1 = lt.check("This »is a test.").get(0);
      assertThat(match1.getFromPos(), is(5));
      assertThat(match1.getToPos(), is(6));
      assertThat(match1.getLine(), is(0));
      assertThat(match1.getEndLine(), is(0));
      assertThat(match1.getColumn(), is(5));
      assertThat(match1.getEndColumn(), is(6));
  
      RuleMatch match2 = lt.check("This.\nSome stuff.\nIt »is a test.").get(0);
      assertThat(match2.getFromPos(), is(21));
      assertThat(match2.getToPos(), is(22));
      assertThat(match2.getLine(), is(2));  // first line is 0
      assertThat(match2.getEndLine(), is(2));
      assertThat(match2.getColumn(), is(4));
      assertThat(match2.getEndColumn(), is(5));
  
      RuleMatch match3 = lt.check("Th\u00ADis »is a test.").get(0);
      assertThat(match3.getFromPos(), is(6));
      assertThat(match3.getToPos(), is(7));
    }
  
    private void setUpRule(Language language) {
      lt = new JLanguageTool(language);
      for (Rule rule : lt.getAllRules()) {
        lt.disableRule(rule.getId());
      }
      GenericUnpairedBracketsRule rule = new GenericUnpairedBracketsRule(TestTools.getEnglishMessages(),
              Arrays.asList("»"), Arrays.asList("«"));
      lt.addRule(rule);
    }
  
    private void assertMatches(int expectedMatches, String input) throws IOException {
      List<RuleMatch> ruleMatches = lt.check(input);
      assertEquals("Expected " + expectedMatches + " matches, got: " + ruleMatches, expectedMatches, ruleMatches.size());
    }
  
    public static GenericUnpairedBracketsRule getBracketsRule(JLanguageTool lt) {
      for (Rule rule : lt.getAllActiveRules()) {
        if (rule instanceof GenericUnpairedBracketsRule) {
          return (GenericUnpairedBracketsRule)rule;
        }
      }
      throw new RuntimeException("Rule not found: " + GenericUnpairedBracketsRule.class);
    }
  
  }
  