public void Should_notify_user_when_apply_discount()
{
List <User> users = new List <User> {
new User()
};
var notifier = new VerifyNotifier();;
DiscountApplier discountApplier = new DiscountApplier(notifier, users);
var item = new Item();
discountApplier.Apply(item, 20);
Assert.IsTrue(notifier.IsCalledForAll(users));
}
public void Should_notify_user_when_apply_discount()
{
List <User> users = new List <User> {
new User(), new User()
};
var notifier = Substitute.For <INotifier>();
DiscountApplier discountApplier = new DiscountApplier(notifier, users);
var item = new Item();
discountApplier.Apply(item, 20);
users.ForEach(
user => notifier.Received().Notify(user));
}
public void Should_Notify_twice_when_having_two_users_to_notify()
{
List <User> users = new List <User>
{
new User(),
new User()
};
var notifier = Substitute.For <INotifier>();
DiscountApplier discountApplier = new DiscountApplier(notifier, users);
var item = new Item();
discountApplier.Apply(item, 20);
notifier.Received(users.Count).Notify(Arg.Any <User>());
}
public void Should_Notify_twice_when_having_two_users_to_notify()
{
List <User> users = new List <User>
{
new User(),
new User()
};
var notifier = new CounterNotifier();;
DiscountApplier discountApplier = new DiscountApplier(notifier, users);
var item = new Item();
discountApplier.Apply(item, 20);
Assert.AreEqual(users.Count, notifier.CallCount);
}