1 /*
   2  * Copyright (c) 2007, 2017 Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation. Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package org.jemmy.image.pixel;
  26 
  27 import org.jemmy.env.Environment;
  28 import org.jemmy.image.Image;
  29 import org.jemmy.image.pixel.Raster.Component;
  30 import org.testng.Assert;
  31 import org.testng.AssertJUnit;
  32 import org.testng.annotations.BeforeClass;
  33 import org.testng.annotations.BeforeMethod;
  34 import org.testng.annotations.Test;
  35 
  36 
  37 public class PixelImageComparatorTest {
  38 
  39     private static Component[] supportedComps;
  40 
  41     private PixelImageComparator comparator;
  42 
  43     @BeforeClass
  44     public static void setUpClass() throws Exception {
  45          supportedComps = new Component[] {
  46             Component.RED, Component.GREEN, Component.BLUE, Component.ALPHA
  47         };
  48     }
  49 
  50     @BeforeMethod
  51     public void setUp() {
  52          comparator = new PixelImageComparator(new Environment()) {
  53             @Override
  54             protected Image toImage(Raster image) {
  55                 throw new UnsupportedOperationException("Not supported yet.");
  56             }
  57 
  58             @Override
  59             protected Raster toRaster(Image image) {
  60                 throw new UnsupportedOperationException("Not supported yet.");
  61             }
  62 
  63             @Override
  64             protected WriteableRaster createDiffRaster(Raster r1, Raster r2) {
  65                 throw new UnsupportedOperationException("Not supported yet.");
  66             }
  67         };
  68     }
  69 
  70     @Test
  71     public void testGetComponentsValueFunction() {
  72         //Translucent colors
  73         final double alpha = 0.5;
  74         double[] black = new double[] { 0.0, 0.0, 0.0, alpha };
  75         double[] white = new double[] { 1.0, 1.0, 1.0, alpha };
  76         double result;
  77 
  78         result = comparator.getComponentValue(supportedComps, black, Component.RED);
  79         AssertJUnit.assertEquals(0.5, result, 0.001);
  80 
  81         result = comparator.getComponentValue(supportedComps, white, Component.RED);
  82         AssertJUnit.assertEquals(1.0, result, 0.001);
  83 
  84         //Opaque colors
  85         black =  new double[] { 0.0, 0.0, 0.0, 1.0 };
  86         white = new double[] { 1.0, 1.0, 1.0, 1.0 };
  87 
  88         result = comparator.getComponentValue(supportedComps, black, Component.RED);
  89         AssertJUnit.assertEquals(0.0, result, 0.001);
  90 
  91         result = comparator.getComponentValue(supportedComps, white, Component.RED);
  92         AssertJUnit.assertEquals(1.0, result, 0.001);
  93 
  94         //Transparent colors
  95         black =  new double[] { 0.0, 0.0, 0.0, 0.0 };
  96         white = new double[] { 1.0, 1.0, 1.0, 0.0 };
  97 
  98         result = comparator.getComponentValue(supportedComps, black, Component.RED);
  99         AssertJUnit.assertEquals(1.0, result, 0.001);
 100 
 101         result = comparator.getComponentValue(supportedComps, white, Component.RED);
 102         AssertJUnit.assertEquals(1.0, result, 0.001);
 103     }
 104 
 105     @Test(expectedExceptions = IllegalStateException.class)
 106     public void testAlphaOutOfBounds() {
 107         double[] colors = new double[] { 0.0, 0.0, 0.1, 1.1 };
 108         comparator.getComponentValue(supportedComps, colors, Component.RED);
 109     }
 110 
 111     @Test(expectedExceptions = IllegalStateException.class)
 112     public void testColorComponentOutOfBounds() {
 113         double[] colors = new double[] { 1.1, 1.1, 1.1, 1.0 };
 114         comparator.getComponentValue(supportedComps, colors, Component.RED);
 115     }
 116 }