@Test
public void testGetPositionYProperty() {

  assertTrue(oS1.reqPositionYProperty().get() == 0);
  assertTrue(oS2.reqPositionYProperty().get() == 0);
  assertTrue(oS3.reqPositionYProperty().get() == 40);
  assertTrue(oS4.reqPositionYProperty().get() == 40);
  assertTrue(oS5.reqPositionYProperty().get() == 0);
  assertTrue(oS6.reqPositionYProperty().get() == 300);
}