def test_update_price_on_id_not_found_gives_error():
cat = Catalogue("2021 catalogue")
candle1 = Candle("Beach", 54, "lavender", "square", "4 hours", "10cm by 10cm", "£100")
cat.add_candle(candle1)
with pytest.raises(ValueError) as e:
cat.update_candle_price(2, "£80")
assert str(e.value) == "Item not found"
def test_update_price_changes_to_new_price():
cat = Catalogue("2021 catalogue")
candle1 = Candle("Beach", 54, "lavender", "square", "4 hours", "10cm by 10cm", "£100")
cat.add_candle(candle1)
cat.update_candle_price(54, "£80")
assert candle1.price == "£80"