test_project.py

import sys,pytest
from project import check_uom,check_ingredient_validity,get_ingredient_balance_for_recipe

def test_check_uom():
    assert check_uom("wrong unit")==False
    assert check_uom("lbf")==False
    assert check_uom("piece")==True
    assert check_uom("l")==True
    assert check_uom("L")==True