package org.opentrafficsim.core.unit;
   
   import static org.junit.Assert.assertEquals;
   import static org.junit.Assert.assertTrue;
   import static org.opentrafficsim.core.unit.unitsystem.UnitSystem.OTHER;
   
   import java.util.Locale;
   
   import org.junit.Before;
  import org.junit.Test;
  import org.opentrafficsim.core.locale.DefaultLocale;
  
  /**
   * <p>
   * Copyright (c) 2013-2014 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
   * <p>
   * @version Jun 4, 2014 <br>
   * @author <a href="http://tudelft.nl/pknoppers">Peter Knoppers</a>
   */
  public class TimeUnitTest extends AbstractUnitTest<TimeUnit>
  {
      /**
       * Set the locale to "en" so we know what texts should be retrieved from the resources.
       */
      @SuppressWarnings("static-method")
      @Before
      public final void setup()
      {
          DefaultLocale.setLocale(new Locale("en"));
      }
  
      /**
       * Verify the result of some get*Key methods.
       */
      @Test
      public final void keys()
      {
          checkKeys(TimeUnit.SECOND, "TimeUnit.second", "TimeUnit.s");
      }
  
      /**
       * Verify conversion factors, English names and abbreviations.
       */
      @Test
      public final void conversions()
      {
          checkUnitRatioNameAndAbbreviation(TimeUnit.SECOND, 1, 0.00000001, "second", "s");
          checkUnitRatioNameAndAbbreviation(TimeUnit.HOUR, 3600, 0.0005, "hour", "h");
          checkUnitRatioNameAndAbbreviation(TimeUnit.DAY, 86400, 0.001, "day", "d");
          // Check two conversions between non-standard units
          assertEquals("one DAY is 24 HOUR", 24, getMultiplicationFactorTo(TimeUnit.DAY, TimeUnit.HOUR), 0.0001);
          assertEquals("one HOUR is about 0.0417 DAY", 0.0417, getMultiplicationFactorTo(TimeUnit.HOUR, TimeUnit.DAY), 0.0001);
          // Check conversion factor to standard unit for all remaining time units
          checkUnitRatioNameAndAbbreviation(TimeUnit.MILLISECOND, 0.001, 0.00000001, "millisecond", "ms");
          checkUnitRatioNameAndAbbreviation(TimeUnit.MINUTE, 60, 0.000001, "minute", "m");
          checkUnitRatioNameAndAbbreviation(TimeUnit.WEEK, 7 * 86400, 0.1, "week", "w");
      }
  
      /**
       * Verify that we can create our own length unit.
       */
      @Test
      public final void createLengthUnit()
      {
          TimeUnit myTU =
              new TimeUnit(UnitLocalizationsTest.DONOTCHECKPREFIX + "TimeUnit.Fortnight",
                  UnitLocalizationsTest.DONOTCHECKPREFIX + "TimeUnit.fn", OTHER, TimeUnit.SECOND, 14 * 86400);
          assertTrue("Can create a new TimeUnit", null != myTU);
          checkUnitRatioNameAndAbbreviation(myTU, 14 * 86400, 1, "!Fortnight!", "!fn!");
      }
  
  }