Bank.Tests.AccountTests.ShouldImplementINotifyPropertyChangedAndUseItForBalance C# (CSharp) Method

        public void ShouldImplementINotifyPropertyChangedAndUseItForBalance()
        {
            var account = new AccountBuilder().Build();
            INotifyPropertyChanged notifier = account as INotifyPropertyChanged;
            Assert.That(notifier, Is.Not.Null, () => "INotifyPropertyChanged is not implemented.");

            var notifyForBalancePropertyReceived = false;
            notifier.PropertyChanged += (sender, e) =>
            {
                notifyForBalancePropertyReceived = e.PropertyName == "Balance";
            };

            account.Balance += 1;
            Assert.That(notifyForBalancePropertyReceived, Is.True, () => "No 'PropertyChanged' event it triggerd when the 'Balance' property changes.");
        }