Fix Node Should Be Hoverable Keyword to preperly move pointer, fixes #37

Author: sampeson

src/main/java/javafxlibrary/matchers/ExtendedNodeMatchers.java

@@ -19,12 +19,20 @@
 
 import javafx.geometry.Bounds;
 import javafx.scene.Node;
+import javafxlibrary.exceptions.JavaFXLibraryNonFatalException;
+import javafxlibrary.exceptions.JavaFXLibraryTimeoutException;
 import javafxlibrary.utils.HelperFunctions;
+import javafxlibrary.utils.RobotLog;
 import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
 import org.hamcrest.Matcher;
 
+import java.util.concurrent.TimeoutException;
+
 import static javafxlibrary.utils.HelperFunctions.getHoveredNode;
+import static org.testfx.util.WaitForAsyncUtils.waitFor;
+import static org.testfx.util.WaitForAsyncUtils.asyncFx;
+import static org.testfx.util.WaitForAsyncUtils.waitForFxEvents;
 
 public class ExtendedNodeMatchers {
 
@@ -48,8 +56,21 @@ public void describeMismatch(Object object, Description description) {
     }
 
     private static boolean hoverable(Node node) {
-        new javafxlibrary.keywords.Keywords.MoveRobot().moveTo(node,"DIRECT");
-        return node.isHover();
+        try {
+            waitFor(HelperFunctions.getWaitUntilTimeout(), HelperFunctions.getTimeUnit("SECONDS"), () -> {
+                return asyncFx(() -> new javafxlibrary.keywords.Keywords.MoveRobot().moveTo(node, "DIRECT") != null).get();
+            });
+            waitForFxEvents();
+            return node.isHover();
+        } catch (JavaFXLibraryNonFatalException nfe) {
+            throw nfe;
+        } catch (TimeoutException te) {
+            throw new JavaFXLibraryTimeoutException("Given element \"" + node + "\" was not found within given timeout of "
+                    + HelperFunctions.getWaitUntilTimeout() + " " + "SECONDS");
+        } catch (Exception e) {
+            RobotLog.trace("Exception in hoverable matcher: " + e + "\n" + e.getCause().toString());
+            throw new JavaFXLibraryNonFatalException("hoverable matcher failed: ", e);
+        }
     }
 
     public static boolean hasValidCoordinates(Node node) {