code: /* LanguageTool, a natural language style checker
   * Copyright (C) 2020 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.en.translation;
  
  import org.junit.Test;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.junit.Assert.*;
  
  public class InflectorTest {
  
    @Test
    public void inflect() {
      Inflector inflector = new Inflector();
      assertThat(inflector.inflect("pump", "SUB:AKK:PLU:FEM").toString(), is("[pumps]"));  // "Pumpen"
      assertThat(inflector.inflect("child", "SUB:NOM:PLU:NEU").toString(), is("[children]"));  // "Kinder"
      assertThat(inflector.inflect("walk", "VER:3:SIN:PRÄ:NON").toString(), is("[walks]"));  // "er geht"
      assertThat(inflector.inflect("walk", "VER:3:SIN:PRT:NON").toString(), is("[walked]")); // "ging" (-> gehen)
      assertThat(inflector.inflect("walk", "PA1:PRD:GRU:VER").toString(), is("[walking]"));  // "gehend"
      assertThat(inflector.inflect("walk", "PA2:PRD:GRU:VER").toString(), is("[walked]"));   // "gegangen"
      // forms that are not inflected in English do not need to be supported here, e.g. "geh" (imperativ) is simply "go"
  
      assertThat(inflector.inflect("large", "ADJ:PRD:KOM").toString(), is("[larger]"));   // "größer"
      assertThat(inflector.inflect("large", "ADJ:AKK:SIN:FEM:SUP:DEF").toString(), is("[largest]"));   // "größte"
  
      assertThat(inflector.inflect("walk", "VER:1:SIN:PRÄ:NON").toString(), is("[walk]"));  // "ich gehe"
      assertThat(inflector.inflect("walk", "VER:2:SIN:PRÄ:NON").toString(), is("[walk]"));  // "du gehst"
      assertThat(inflector.inflect("walk", "VER:1:PLU:PRÄ:NON").toString(), is("[walk]"));  // "wir gehen"
      assertThat(inflector.inflect("walk", "VER:2:PLU:PRÄ:NON").toString(), is("[walk]"));  // "ihr geht"
      assertThat(inflector.inflect("walk", "VER:3:PLU:PRÄ:NON").toString(), is("[walk]"));  // "sie gehen"
  
      assertThat(inflector.inflect("walk", null).toString(), is("[walk]"));
      assertThat(inflector.inflect("walk", "").toString(), is("[walk]"));
      assertThat(inflector.inflect("walk", "FAKE-TAG").toString(), is("[walk]"));
    }
  
    @Test
    public void inflectMultiWord() {
      Inflector inflector = new Inflector();
      assertThat(inflector.inflect("tire pump", "SUB:AKK:PLU:FEM").toString(), is("[tire pumps]"));  // "Pumpen"
      assertThat(inflector.inflect("fake tire pump", "SUB:AKK:PLU:FEM").toString(), is("[fake tire pumps]"));
    }
  }
  