def buy_product(request):
vm = VendingMachine()
try:
vm.buy_product()
return JsonResponse({'msg': vm.message, 'product': "product"})
except RuntimeError as e:
return JsonResponse({'msg': e.message, 'product': None})
def test_get_balance_returns_sum_of_coins_minus_purchases():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
machine.buy_product(products.Candy)
assert machine.get_balance() == 85
def test_buy_product_returns_instance_when_valid():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
result = machine.buy_product(products.Drink)
assert isinstance(result, products.Drink)
def test_buy_drink_with_insufficient_funds():
machine = VendingMachine()
with pytest.raises(InsufficientFunds):
machine.buy_product(products.Drink)
def test_buy_product_accepts_candy():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
machine.buy_product(products.Candy)
def test_buy_product_accepts_drink():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Loonie())
machine.buy_product(products.Drink)
def test_buy_product_accepts_chips_with_sufficient_balance():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Quarter())
machine.buy_product(products.Chips)
def test_buy_product_rejects_strings():
machine = VendingMachine()
with pytest.raises(ValueError):
machine.buy_product(str)
