package org.opentrafficsim.core.network.factory.xml.units;
   
   import static org.junit.Assert.assertEquals;
   import static org.junit.Assert.fail;
   
   import java.awt.Color;
   
   import org.junit.Test;
   import org.opentrafficsim.core.network.NetworkException;
  
  /**
   * Test that color parser works as expected.
   * <p>
   * Copyright (c) 2013-2019 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 $Revision$, $LastChangedDate$, by $Author$, initial version Jan 17, 2017 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
   */
  public class ColorParserTest
  {
  
      /**
       * Test the color parser.
       * @throws NetworkException if that happens uncaught; this test has failed
       */
      @Test
      public final void testColors() throws NetworkException
      {
          assertEquals("should be Red", Color.RED, Colors.parseColor("#ff0000"));
          assertEquals("should be Green", Color.GREEN, Colors.parseColor("#00ff00"));
          assertEquals("should be Blue", Color.BLUE, Colors.parseColor("#0000FF")); // Try caps as well
          assertEquals("should be Black", Color.BLACK, Colors.parseColor("#0"));
          assertEquals("should be White", Color.WHITE, Colors.parseColor("#ffffff"));
  
          assertEquals("should be Red", Color.RED, Colors.parseColor("RGB ( 255 , 0 , 0 ) ")); // lots of extra spaces
          assertEquals("should be Green", Color.GREEN, Colors.parseColor("RGB(0,255,0)"));
          assertEquals("should be Blue", Color.BLUE, Colors.parseColor("RGB(0,0,255)"));
          assertEquals("should be Black", Color.BLACK, Colors.parseColor("RGB(0,0,0)"));
          assertEquals("should be White", Color.WHITE, Colors.parseColor("RGB(255,255,255)"));
  
          assertEquals("name should be recognized", Color.BLACK, Colors.parseColor("BLACK"));
          assertEquals("name should be recognized", Color.BLUE, Colors.parseColor("BLUE"));
          assertEquals("name should be recognized", Color.CYAN, Colors.parseColor("CYAN"));
          assertEquals("name should be recognized", Color.DARK_GRAY, Colors.parseColor("DARK_GRAY"));
          assertEquals("name should be recognized", Color.GRAY, Colors.parseColor("GRAY"));
          assertEquals("name should be recognized", Color.GREEN, Colors.parseColor("GREEN"));
          assertEquals("name should be recognized", Color.LIGHT_GRAY, Colors.parseColor("LIGHT_GRAY"));
          assertEquals("name should be recognized", Color.MAGENTA, Colors.parseColor("MAGENTA"));
          assertEquals("name should be recognized", Color.ORANGE, Colors.parseColor("ORANGE"));
          assertEquals("name should be recognized", Color.PINK, Colors.parseColor("PINK"));
          assertEquals("name should be recognized", Color.RED, Colors.parseColor("RED"));
          assertEquals("name should be recognized", Color.WHITE, Colors.parseColor("WHITE"));
          assertEquals("name should be recognized", Color.YELLOW, Colors.parseColor("YELLOW"));
          try
          {
              Colors.parseColor("SOMEWHAT_YELLOWISH");
              fail("unknown color should have thrown a NetworkException");
          }
          catch (NetworkException ne)
          {
              // Ignore expected exception
          }
          try
          {
              Colors.parseColor("#cdefgh");
              fail("Bad hex digit should have thrown a NumberFormatException");
          }
          catch (NumberFormatException nfe)
          {
              // Ignore expected exception
          }
          try
          {
              Colors.parseColor("RGB(1,2)");
              fail("Too few values should have thrown an IndexOutOfBoundsException");
          }
          catch (IndexOutOfBoundsException ioobe)
          {
              // Ignore expected Exception
          }
          try
          {
              Colors.parseColor("RGB(1,2,)");
              fail("empty last field should have thrown an ArrayIndexOutOfBoundsException");
          }
          catch (ArrayIndexOutOfBoundsException aioobe)
          {
              // Ignore expected exception
          }
          try
          {
              Colors.parseColor("RGB(1,,3)");
              fail("emty middle field should have thrown a NumberFormatException");
          }
          catch (NumberFormatException nfe)
          {
             // Ignore expected exception
         }
         // FIXME: parser gracefully accepts RGB strings without parentheses
         try
         {
             Colors.parseColor("RGB(256, 0, 0)");
             fail("R value > 255 should have thrown an IllegalArgumentException");
         }
         catch (IllegalArgumentException nfe)
         {
             // Ignore expected exception
         }
         try
         {
             Colors.parseColor("RGB(-1, 0, 0)");
             fail("R value < 0 should have thrown an IllegalArgumentException");
         }
         catch (IllegalArgumentException nfe)
         {
             // Ignore expected exception
         }
     }
 }