Python Purchase.decrement_phone_Lines примеры использования

Пример #1

 def test_price_min_0_phone_lines(self):
     test = Purchase()
     self.assertNotEqual(test.decrement_phone_Lines(), -150)

Пример #2

 def test_price_after_decrement_cell_lines(self):
     test = Purchase()
     test.increment_phone_Lines()
     test.increment_phone_Lines()
     self.assertEqual(test.decrement_phone_Lines(), 150)