content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * 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.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.util;
  
  import org.opencms.test.OpenCmsTestCase;
  
  import java.util.Collections;
  
  import com.google.common.collect.Sets;
  
  /**
   * Tests for CmsManyToOneMap.<p>
   */
  public class TestCmsManyToOneMap extends OpenCmsTestCase {
  
      /**
       * Test for adding entries.<p>
       */
      public void testAdd() {
  
          CmsManyToOneMap<String, String> map = new CmsManyToOneMap<String, String>();
          map.put("k1", "v1");
          map.put("k2", "v1");
          map.put("k3", "v2");
          map.put("k4", "v2");
  
          assertEquals("v1", map.get("k1"));
          assertEquals("v1", map.get("k2"));
          assertEquals("v2", map.get("k3"));
          assertEquals("v2", map.get("k4"));
  
          assertEquals(Sets.newHashSet("k1", "k2"), map.getReverseMap().get("v1"));
          assertEquals(Sets.newHashSet("k3", "k4"), map.getReverseMap().get("v2"));
          assertEquals(Collections.emptySet(), map.getReverseMap().get("xxx"));
  
      }
  
      /**
       * Test for copying.<p>
       */
      public void testCopy() {
  
          CmsManyToOneMap<String, String> map = new CmsManyToOneMap<String, String>();
          map.put("k1", "v1");
          map.put("k2", "v1");
          map.put("k3", "v2");
          map.put("k4", "v2");
          CmsManyToOneMap<String, String> copy = new CmsManyToOneMap<String, String>(map);
          map.removeValue("v1");
          map.remove("k3");
  
          assertEquals("v1", copy.get("k1"));
          assertEquals("v1", copy.get("k2"));
          assertEquals("v2", copy.get("k3"));
          assertEquals("v2", copy.get("k4"));
  
          assertEquals(Sets.newHashSet("k1", "k2"), copy.getReverseMap().get("v1"));
          assertEquals(Sets.newHashSet("k3", "k4"), copy.getReverseMap().get("v2"));
          assertEquals(Collections.emptySet(), copy.getReverseMap().get("xxx"));
  
      }
  
      /**
       * Test for removing keys.<p>
       */
      public void testRemoveKey() {
  
          CmsManyToOneMap<String, String> map = new CmsManyToOneMap<String, String>();
          map.put("k1", "v1");
          map.put("k2", "v1");
          map.put("k3", "v2");
          map.put("k4", "v2");
  
          map.remove("k1");
          assertEquals(null, map.get("k1"));
          assertEquals("v1", map.get("k2"));
          assertEquals("v2", map.get("k3"));
          assertEquals("v2", map.get("k4"));
          assertEquals(Sets.newHashSet("k2"), map.getReverseMap().get("v1"));
          assertEquals(Sets.newHashSet("k3", "k4"), map.getReverseMap().get("v2"));
  
      }
  
      /**
       * Test for removing values.<p>
       */
      public void testRemoveValue() {
  
          CmsManyToOneMap<String, String> map = new CmsManyToOneMap<String, String>();
          map.put("k1", "v1");
          map.put("k2", "v1");
          map.put("k3", "v2");
          map.put("k4", "v2");
  
          map.removeValue("v1");
          assertEquals(null, map.get("k1"));
          assertEquals(null, map.get("k2"));
          assertEquals("v2", map.get("k3"));
          assertEquals("v2", map.get("k4"));
          assertEquals(Collections.emptySet(), map.getReverseMap().get("v1"));
          assertEquals(Sets.newHashSet("k3", "k4"), map.getReverseMap().get("v2"));
  
      }
  
  }
  