/*
    * 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 org.apache.commons.lang3.AbstractLangTest;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests for FastTimeZone
   */
  class FastTimeZoneTest extends AbstractLangTest {
  
      private static final int HOURS_23 = 23 * 60 * 60 * 1000;
      private static final int HOURS_2 = 2 * 60 * 60 * 1000;
      private static final int MINUTES_59 = 59 * 60 * 1000;
      private static final int MINUTES_5 = 5 * 60 * 1000;
  
      @Test
      void testBareGmt() {
          assertEquals(FastTimeZone.getGmtTimeZone(), FastTimeZone.getTimeZone(TimeZones.GMT_ID));
      }
  
      @Test
      void testGetGmtTimeZone() {
          assertEquals(0, FastTimeZone.getGmtTimeZone().getRawOffset());
      }
  
      @Test
      void testGmtPrefix() {
          assertEquals(HOURS_23, FastTimeZone.getGmtTimeZone("GMT+23:00").getRawOffset());
          assertEquals(-HOURS_23, FastTimeZone.getGmtTimeZone("GMT-23:00").getRawOffset());
      }
  
      @Test
      void testHoursColonMinutes() {
          assertEquals(HOURS_23, FastTimeZone.getGmtTimeZone("23:00").getRawOffset());
          assertEquals(HOURS_2, FastTimeZone.getGmtTimeZone("2:00").getRawOffset());
          assertEquals(MINUTES_59, FastTimeZone.getGmtTimeZone("00:59").getRawOffset());
          assertEquals(MINUTES_5, FastTimeZone.getGmtTimeZone("00:5").getRawOffset());
          assertEquals(HOURS_23 + MINUTES_59, FastTimeZone.getGmtTimeZone("23:59").getRawOffset());
          assertEquals(HOURS_2 + MINUTES_5, FastTimeZone.getGmtTimeZone("2:5").getRawOffset());
      }
  
      @Test
      void testHoursMinutes() {
          assertEquals(HOURS_23, FastTimeZone.getGmtTimeZone("2300").getRawOffset());
          assertEquals(HOURS_2, FastTimeZone.getGmtTimeZone("0200").getRawOffset());
          assertEquals(MINUTES_59, FastTimeZone.getGmtTimeZone("0059").getRawOffset());
          assertEquals(MINUTES_5, FastTimeZone.getGmtTimeZone("0005").getRawOffset());
          assertEquals(HOURS_23 + MINUTES_59, FastTimeZone.getGmtTimeZone("2359").getRawOffset());
          assertEquals(HOURS_2 + MINUTES_5, FastTimeZone.getGmtTimeZone("0205").getRawOffset());
      }
  
      @Test
      void testOlson() {
          assertEquals(TimeZones.getTimeZone("America/New_York"), FastTimeZone.getTimeZone("America/New_York"));
      }
  
      @Test
      void testSign() {
          assertEquals(HOURS_23, FastTimeZone.getGmtTimeZone("+23:00").getRawOffset());
          assertEquals(HOURS_2, FastTimeZone.getGmtTimeZone("+2:00").getRawOffset());
          assertEquals(-HOURS_23, FastTimeZone.getGmtTimeZone("-23:00").getRawOffset());
          assertEquals(-HOURS_2, FastTimeZone.getGmtTimeZone("-2:00").getRawOffset());
      }
  
      @Test
      void testUTC() {
          assertEquals(FastTimeZone.getGmtTimeZone(), FastTimeZone.getTimeZone("UTC"));
      }
  
      @Test
      void testZ() {
          assertEquals(FastTimeZone.getGmtTimeZone(), FastTimeZone.getTimeZone("Z"));
      }
  
      @Test
      void testZeroOffsetsReturnSingleton() {
          assertEquals(FastTimeZone.getGmtTimeZone(), FastTimeZone.getTimeZone("+0"));
          assertEquals(FastTimeZone.getGmtTimeZone(), FastTimeZone.getTimeZone("-0"));
      }
  
  }