public void testUse2() {
   MarkerShapeType type = MarkerShapeType.POLY;
   assertEquals("poly", type.value());
 }
 public void testUse3() {
   MarkerShapeType type = MarkerShapeType.RECT;
   assertEquals("rect", type.value());
 }
 public void testUse1() {
   MarkerShapeType type = MarkerShapeType.CIRCLE;
   assertEquals("circle", type.value());
 }