def test_is_valid_coin__should_assign_value_when_coin_is_valid():
valid_coin = {'weight': QUARTER['weight'], 'diameter': QUARTER['diameter']}
actual = is_valid_coin(valid_coin)
assert actual is True
assert valid_coin['value'] == 0.25
def controller(selection, inserted_coins):
product_service = ProductService(None)
if not product_service.is_product_available(selection):
return {'message': 'Product is unavailable!'}, False
valid_coins = [
valid_coin for valid_coin in inserted_coins
if coin_service.is_valid_coin(valid_coin)
]
amount = coin_service.count_funds(valid_coins)
cost = product_service.get_product_cost(selection)
if not coin_service.has_sufficient_funds(cost, amount):
return {'message': 'Insufficient funds supplied!'}, False
return {'message': 'Thank you!'}, True
def test_is_valid_coin__should_return_false_when_invalid_diameter_coin_supplied(
):
invalid_coin = {'diameter': 42.76, 'weight': QUARTER['weight']}
actual = is_valid_coin(invalid_coin)
assert actual is False
def test_is_valid_coin__should_return_false_when_invalid_weight_coin_supplied(
):
invalid_coin = {'weight': 56.99}
actual = is_valid_coin(invalid_coin)
assert actual is False
def test_is_valid_coin__should_return_true_when_dollar_supplied():
actual = is_valid_coin(DOLLAR)
assert actual is True
def test_is_valid_coin__should_return_true_when_dime_supplied():
actual = is_valid_coin(DIME)
assert actual is True
def test_is_valid_coin__should_return_true_when_nickel_supplied():
actual = is_valid_coin(NICKEL)
assert actual is True
def test_is_valid_coin__should_return_true_when_quarter_supplied():
actual = is_valid_coin(QUARTER)
assert actual is True