def test_add_new_vehicle_invalid_new_miles(self):
with self.assertRaises(Exception):
mileage.addMiles('Car', -100)
with self.assertRaises(Exception):
mileage.addMiles('Car', 'abc')
with self.assertRaises(Exception):
mileage.addMiles('Car', '12.def')
def test_add_new_vehicle_no_vehicle(self):
with self.assertRaises(Exception):
mileage.addMiles(None, 100)
