code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2015 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.dev.wordsimilarity;
  
  import org.junit.Test;
  
  import static org.hamcrest.core.Is.is;
  import static org.junit.Assert.*;
  
  public class GermanQwertzKeyboardDistanceTest {
  
      @Test
      public void testDistance() {
          GermanQwertzKeyboardDistance distance = new GermanQwertzKeyboardDistance();
          assertThat(distance.getDistance('q', 'q'), is(0.0f));
          assertThat(distance.getDistance('q', 'w'), is(1.0f));
          assertThat(distance.getDistance('q', 'p'), is(9.0f));
          assertThat(distance.getDistance('q', 'a'), is(1.0f));
          assertThat(distance.getDistance('t', 'g'), is(1.0f));
          assertThat(distance.getDistance('a', 's'), is(1.0f));
          assertThat(distance.getDistance('a', 'g'), is(4.0f));
          assertThat(distance.getDistance('y', 'x'), is(1.0f));
          assertThat(distance.getDistance('c', 'n'), is(3.0f));
          assertThat(distance.getDistance('q', 'y'), is(2.0f));
          assertThat(distance.getDistance('q', 'm'), is(8.0f));
          assertThat(distance.getDistance('p', 'ß'), is(2.0f));
          assertThat(distance.getDistance('o', 'ß'), is(3.0f));
          // uppercase:
          assertThat(distance.getDistance('C', 'n'), is(3.0f));
          assertThat(distance.getDistance('c', 'N'), is(3.0f));
          assertThat(distance.getDistance('C', 'N'), is(3.0f));
      }
  }