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 GmbH & Co. KG, 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.TimeZone;
  
  /**
   * Test cases for the class "CmsDateUtil".<p>
   *
   * @since 6.0.0
   */
  public class TestCmsDateUtil extends OpenCmsTestCase {
  
      /**
       * Tests HTTP-Header date format generation.<p>
       *
       * Issue:
       * Http headers generated with bad formatting according to http spec.<p>
       *
       * @throws Exception if something goes wrong
       */
      public void testHttpDateGeneration() throws Exception {
  
          String dateString = "Mon, 12 Jul 2004 10:00:00 GMT";
          long dateLong = CmsDateUtil.parseHeaderDate(dateString);
          String result = CmsDateUtil.getHeaderDate(dateLong);
          assertEquals(dateString, result);
          assertSame(CmsDateUtil.HEADER_DEFAULT.getTimeZone(), CmsDateUtil.GMT_TIMEZONE);
      }
  
      /**
       * Tests HTTP-Header time zone reuse.<p>
       *
       * Issue:
       * Time zone information in static formatting objects may be changed in the application.<p>
       *
       * @throws Exception if something goes wrong
       */
      public void testHttpDateTimeZoneUsage() throws Exception {
  
          TimeZone wrongZone = TimeZone.getTimeZone("GMT+1");
          CmsDateUtil.HEADER_DEFAULT.setTimeZone(wrongZone);
  
          String dateString = "Mon, 12 Jul 2004 11:00:00 GMT";
          long dateLong = CmsDateUtil.parseHeaderDate(dateString);
          String result = CmsDateUtil.getHeaderDate(dateLong);
          assertEquals(dateString, result);
          assertSame(CmsDateUtil.HEADER_DEFAULT.getTimeZone(), CmsDateUtil.GMT_TIMEZONE);
  
          wrongZone = TimeZone.getTimeZone("GMT+2");
          CmsDateUtil.HEADER_DEFAULT.setTimeZone(wrongZone);
  
          dateString = "Tue, 13 Jul 2004 12:00:00 GMT";
          dateLong = CmsDateUtil.parseHeaderDate(dateString);
          result = CmsDateUtil.getHeaderDate(dateLong);
          assertEquals(dateString, result);
          assertSame(CmsDateUtil.HEADER_DEFAULT.getTimeZone(), CmsDateUtil.GMT_TIMEZONE);
      }
  }
  