def test_moisture_change(self):
havana = City("Havana", 25, 70)
helsinki = City("Helsinki", -10, 50)
havana.change_moisture(100)
self.assertEqual(havana.get_moisture() - helsinki.get_moisture(), 50)
def test_return_type_2(self):
havana = City("Havana", 25, 70)
self.assertEqual(int, type(havana.get_moisture()))
def test_moisture(self):
havana = City("Havana", 25, 70)
self.assertEqual(havana.get_moisture(), 70)
