--- old/tests/system/src/test/java/test/robot/javafx/scene/layout/RegionBackgroundFillUITest.java	2018-02-21 14:46:07.933977388 +0530
+++ new/tests/system/src/test/java/test/robot/javafx/scene/layout/RegionBackgroundFillUITest.java	2018-02-21 14:46:07.394247368 +0530
@@ -35,10 +35,6 @@
  */
 public class RegionBackgroundFillUITest extends RegionUITestBase {
 
-    static {
-        System.setProperty("glass.win.uiScale", "100%");
-    }
-
     /**************************************************************************
      *                                                                        *
      * Tests for background fills. We start with a series of simple tests     *
@@ -135,7 +131,7 @@
 
     @Test(timeout=20000)
     public void basicFill_Radius1() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red;" +
                 "-fx-background-radius: 10");
@@ -182,7 +178,7 @@
 
     @Test(timeout=20000)
     public void basicFill_RadiusAndInsets() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red;" +
                 "-fx-background-radius: 10 20 30 40;" +
@@ -373,7 +369,7 @@
 
     @Test(timeout=20000)
     public void testScenario3() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, green, blue, grey;" +
                 "-fx-background-insets: 0 0 -10 0, 0, 10, 20;" +
@@ -409,7 +405,7 @@
 
     @Test(timeout=20000)
     public void testScenario4() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, green, blue, repeating-image-pattern('test/robot/javafx/scene/layout/test20x20.png');" +
                 "-fx-background-insets: 0 0 -10 0, 0, 10, 20;" +
@@ -496,7 +492,7 @@
 
     @Test(timeout=20000)
     public void testOnePixelTopInset() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, yellow;" +
                 "-fx-background-insets: 0, 1 0 0 0;");
@@ -525,7 +521,7 @@
 
     @Test(timeout=20000)
     public void testOnePixelRightInset() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, yellow;" +
                 "-fx-background-insets: 0, 0 1 0 0;");
@@ -554,7 +550,7 @@
 
     @Test(timeout=20000)
     public void testOnePixelBottomInset() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, yellow;" +
                 "-fx-background-insets: 0, 0 0 1 0;");
@@ -583,7 +579,7 @@
 
     @Test(timeout=20000)
     public void testOnePixelLeftInset() {
-        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8170026
+        assumeTrue(checkIntegralUIScale());
         setStyle(
                 "-fx-background-color: red, yellow;" +
                 "-fx-background-insets: 0, 0 0 0 1;");