def testNecklace(self): testMetal: str = "platinum" testGem: str = "ruby" testSize: int = 8 ring = Ring(metal=testMetal, gem=testGem, size=testSize) self.assertEqual(ring.gem, "ruby") self.assertEqual(ring.metal, "platinum") ring.gem = "pearl" ring.metal = "titanium" ring.size = 7 self.assertEqual(ring.gem, "pearl") self.assertEqual(ring.metal, "titanium") ring.wear() self.assertEqual(ring.polished, False) ring.polish() self.assertEqual(ring.polished, True)