def test_compare_product_missing(lambda_module, product):
retval = lambda_module.compare_product(product, None)
assert retval is not None
assert retval[0] == product
assert isinstance(retval[1], str)
assert retval[1].find(product["productId"]) != -1
def test_compare_product_correct(lambda_module, product):
"""
Compare a product that matches the DynamoDB item
"""
retval = lambda_module.compare_product(product, product)
assert retval is None
def test_compare_product_wrong_price(lambda_module, product):
user_product = copy.deepcopy(product)
user_product["price"] += 100
retval = lambda_module.compare_product(user_product, product)
assert retval is not None
assert retval[0] == product
assert isinstance(retval[1], str)
assert retval[1].find(product["productId"]) != -1