def test_remIngredient_incorrectinput():
sys = System()
sys.addQuantityIngredient('sesame bun', 'm', 20, 1.00)
with pytest.raises(DevError) as err:
sys.remIngredient(1)
assert 'cannot delete. no such ingredient in the inventory' in str(
err.value)
def test_remIngredient_correctinput():
sys = System()
sys.addQuantityIngredient('sesame bun', 'm', 20, 1.00)
sys.addWeightIngredient('fries', 'm', 2000, 60, 100, 140, 2, 2.8, 3.4)
sys.remIngredient(4)
assert len(sys.ingredients) == 1
assert sys.ingredients[0].name == 'sesame bun'