@Test
public void testGetPositionY() {

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