class TestTV(unittest.TestCase): def setUp(self): self.tv1 = TV(5, 10) def test_canal(self): self.assertEqual(self.tv1.canal, 5) def test_aumenta(self): self.assertEqual(self.tv1.aumentar(15), 25) def test_diminui(self): self.assertEqual(self.tv1.diminuir(6), 4)