8324238: [macOS] java/awt/Frame/ShapeNotSetSometimes/ShapeNotSetSomet…

…imes.java fails with the shape has not been applied msg

Backport-of: 62c9530c056dbaaf65be0f43295af3d225326a4c

test/jdk/java/awt/Frame/ShapeNotSetSometimes/ShapeNotSetSometimes.java

@@ -21,8 +21,6 @@
  * questions.
  */
 
-
-
 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.EventQueue;
@@ -44,7 +42,7 @@
  * @key headful
  * @bug 6988428
  * @summary Tests whether shape is always set
- * @run main ShapeNotSetSometimes
+ * @run main/othervm -Dsun.java2d.uiScale=1 ShapeNotSetSometimes
  */
 
 public class ShapeNotSetSometimes {
@@ -55,22 +53,24 @@ public class ShapeNotSetSometimes {
     private Point[] pointsOutsideToCheck;
     private Point[] shadedPointsToCheck;
     private Point innerPoint;
-    private final Rectangle bounds = new Rectangle(220, 400, 300, 300);
 
     private static Robot robot;
     private static final Color BACKGROUND_COLOR = Color.GREEN;
     private static final Color SHAPE_COLOR = Color.WHITE;
+    private static final int DIM = 300;
+    private static final int DELTA = 2;
 
     public ShapeNotSetSometimes() throws Exception {
         EventQueue.invokeAndWait(this::initializeGUI);
         robot.waitForIdle();
-        robot.delay(1000);
+        robot.delay(500);
     }
 
     private void initializeGUI() {
         backgroundFrame = new BackgroundFrame();
         backgroundFrame.setUndecorated(true);
-        backgroundFrame.setBounds(bounds);
+        backgroundFrame.setSize(DIM, DIM);
+        backgroundFrame.setLocationRelativeTo(null);
         backgroundFrame.setVisible(true);
 
         Area area = new Area();
@@ -81,23 +81,27 @@ private void initializeGUI() {
         area.add(new Area(new Ellipse2D.Float(150, 50, 100, 100)));
         area.add(new Area(new Ellipse2D.Float(150, 100, 100, 100)));
 
-
+        // point at the center of white ellipse
         innerPoint = new Point(150, 130);
+
+        // mid points on the 4 sides - on the green background frame
         pointsOutsideToCheck = new Point[] {
                 new Point(150, 20),
                 new Point(280, 120),
                 new Point(150, 250),
                 new Point(20, 120)
         };
 
+        // points just outside the ellipse (opposite side of diagonal)
         shadedPointsToCheck = new Point[] {
                 new Point(62, 62),
                 new Point(240, 185)
         };
 
         window = new TestFrame();
         window.setUndecorated(true);
-        window.setBounds(bounds);
+        window.setSize(DIM, DIM);
+        window.setLocationRelativeTo(null);
         window.setShape(area);
         window.setVisible(true);
     }
@@ -108,7 +112,7 @@ static class BackgroundFrame extends Frame {
         public void paint(Graphics g) {
 
             g.setColor(BACKGROUND_COLOR);
-            g.fillRect(0, 0, 300, 300);
+            g.fillRect(0, 0, DIM, DIM);
 
             super.paint(g);
         }
@@ -120,7 +124,7 @@ class TestFrame extends Frame {
         public void paint(Graphics g) {
 
             g.setColor(SHAPE_COLOR);
-            g.fillRect(0, 0, bounds.width, bounds.height);
+            g.fillRect(0, 0, DIM, DIM);
 
             super.paint(g);
         }
@@ -155,17 +159,24 @@ private void doTest() throws Exception {
             }
         } finally {
             EventQueue.invokeAndWait(() -> {
-                backgroundFrame.dispose();
-                window.dispose();
+                if (backgroundFrame != null) {
+                    backgroundFrame.dispose();
+                }
+                if (window != null) {
+                    window.dispose();
+                }
             });
         }
     }
 
     private void colorCheck(int x, int y, Color expectedColor, boolean mustBeExpectedColor) {
-
         int screenX = window.getX() + x;
         int screenY = window.getY() + y;
 
+        robot.mouseMove(screenX, screenY);
+        robot.waitForIdle();
+        robot.delay(50);
+
         Color actualColor = robot.getPixelColor(screenX, screenY);
 
         System.out.printf(
@@ -176,7 +187,7 @@ private void colorCheck(int x, int y, Color expectedColor, boolean mustBeExpecte
                 expectedColor
         );
 
-        if (mustBeExpectedColor != expectedColor.equals(actualColor)) {
+        if (mustBeExpectedColor != colorCompare(expectedColor, actualColor)) {
             captureScreen();
             System.out.printf("window.getX() = %3d, window.getY() = %3d\n", window.getX(), window.getY());
             System.err.printf(
@@ -190,6 +201,15 @@ private void colorCheck(int x, int y, Color expectedColor, boolean mustBeExpecte
         }
     }
 
+    private static boolean colorCompare(Color expected, Color actual) {
+        if (Math.abs(expected.getRed() - actual.getRed()) <= DELTA
+                && Math.abs(expected.getGreen() - actual.getGreen()) <= DELTA
+                && Math.abs(expected.getBlue() - actual.getBlue()) <= DELTA) {
+            return true;
+        }
+        return false;
+    }
+
     private static void captureScreen() {
         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
         Rectangle screenBounds = new Rectangle(0, 0, screenSize.width, screenSize.height);