test/jdk/java/awt/Window/ShapedAndTranslucentWindows/Common.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -259,25 +259,36 @@
         Point location = window.getLocationOnScreen();
 
         for (Point p : points) {
             p.translate(location.x, location.y);
             if (areBackgroundPoints) {
-                if (!robot.getPixelColor(p.x, p.y).equals(BG_COLOR))
+                if (!similarColors(robot.getPixelColor(p.x, p.y), BG_COLOR))
                     throw new RuntimeException("Background point " + p + " color " + robot.getPixelColor(p.x, p.y) +
                             " does not equal to background color " + BG_COLOR);
                 else
                     System.out.println("OK with background point " + p);
             } else {
-                if (robot.getPixelColor(p.x, p.y).equals(BG_COLOR))
+                if (similarColors(robot.getPixelColor(p.x, p.y), BG_COLOR))
                     throw new RuntimeException("Foreground point " + p +
                             " equals to background color " + BG_COLOR);
                 else
                     System.out.println("OK with foreground point " + p);
             }
         }
     }
 
+    public static boolean similarColors(final Color c1, final Color c2) {
+        if((Math.abs(c1.getRed() - c2.getRed()) < 40) &&
+           (Math.abs(c1.getBlue() - c2.getBlue()) < 40) &&
+           (Math.abs(c1.getGreen() - c2.getGreen()) < 40)) {
+                return true;
+        }
+        else {
+            return false;
+        }
+    }
+
     public void initBackgroundFrame() {
         background = new Frame();
         background.setUndecorated(true);
         background.setBackground(BG_COLOR);
         background.setSize(500, 500);