/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.commons.lang3.time;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.util.TimeZone;
  
  import org.apache.commons.lang3.AbstractLangTest;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests {@link TimeZones}.
   */
  class TimeZonesTest extends AbstractLangTest {
  
      static final String TIME_ZONE_GET_AVAILABLE_IDS = "java.util.TimeZone#getAvailableIDs()";
  
      @Test
      void testToTimeZone() {
          assertEquals(TimeZone.getDefault(), TimeZones.toTimeZone(null));
          assertEquals(TimeZone.getDefault(), TimeZones.toTimeZone(TimeZone.getDefault()));
          assertEquals(TimeZones.GMT, TimeZones.toTimeZone(TimeZones.GMT));
          final TimeZone timeZone = TimeZones.toTimeZone(TimeZones.GMT);
          assertEquals(TimeZones.GMT.getID(), timeZone.getID());
          assertEquals(TimeZones.GMT.toString(), timeZone.toString());
          final TimeZone unwrap = ((ImmutableTimeZone) TimeZones.GMT).unwrap();
          assertEquals(unwrap.getID(), timeZone.getID());
          assertEquals(unwrap.toString(), timeZone.toString());
      }
  }