@Test
 public void testSizeOf0() {
   assertEquals(equipment.getSize(), SIZE, 0.0);
   Double newSize = 0.0;
   equipment.setSize(newSize);
   assertEquals(equipment.getSize(), newSize, 0.0);
 }
 @Test
 public void testHighSize() {
   Double newSize = 999.999;
   equipment.setSize(newSize);
   assertEquals(equipment.getSize(), newSize, 0.0);
 }