[Fact]
    public void deposited_successfully()
    {
        // Context
        const int InitialBalance = 10000000;
        const decimal BankFees = 20000;
        const decimal SmsFees = 80000;
        var depositAmount = 100000;

        var bankAccountId = BankAccountId.New(Guid.NewGuid().ToString());

        var aNewBankAccountIsOpened = new ANewBankAccountIsOpened(bankAccountId.Id, InitialBalance);
        var theBankAccountIsDepositedDueToBankFees = new TheBankAccountIsDepositedDueToBankFees(bankAccountId.Id, BankFees);
        var theBankAccountIsDepositedDueToSmsFees = new TheBankAccountIsDepositedDueToSMSFees(bankAccountId.Id, SmsFees);
        

        var depositFromBankAccountCommand = new DepositFromBankAccountCommand(depositAmount);

        // Action and Outcome
        InTermsOfAggregateRoot<BankAccount, BankAccountId>
            .IfIApplied(aNewBankAccountIsOpened,
                        theBankAccountIsDepositedDueToBankFees,
                        theBankAccountIsDepositedDueToSmsFees)
            .WhenICall(bankAccount=>bankAccount.Deposit(depositFromBankAccountCommand))
            .ThenIWillExpect(bankAccount => bankAccount.Balance == (InitialBalance - (BankFees + SmsFees)) - depositAmount);
    }

public class DepositFromBankAccountCommand
{
    public decimal Amount { get; }

    public DepositFromBankAccountCommand(decimal amount)
    {
        Amount = amount;
    }
}

public void Deposit(DepositFromBankAccountCommand command) 
        => Queue(new TheBankAccountIsDepositedFromPOS(Identity.Id, command.Amount));

private void On(TheBankAccountIsDepositedFromPOS @event)
        => Balance -= @event.Amount;

public class TheBankAccountIsDepositedFromPOS : IsADomainEvent
{
    public decimal Amount { get; }

    public TheBankAccountIsDepositedFromPOS(string aggregateId,  decimal amount):base(aggregateId)
    {
        Amount = amount;
    }

    public override IEnumerable<object> GetEqualityComponents()
    {
        yield return AggregateId;
    }
}

[Fact]
    public void queue_TheBankAccountIsDepositedFromPOS_event_after_deposited_successfully_()
    {
        // Context
        const int InitialBalance = 10000000;
        const decimal BankFees = 20000;
        const decimal SmsFees = 80000;
        var depositAmount = 100000;

        var bankAccountId = BankAccountId.New(Guid.NewGuid().ToString());

        var aNewBankAccountIsOpened = new ANewBankAccountIsOpened(bankAccountId.Id, InitialBalance);
        var theBankAccountIsDepositedDueToBankFees = new TheBankAccountIsDepositedDueToBankFees(bankAccountId.Id, BankFees);
        var theBankAccountIsDepositedDueToSmsFees = new TheBankAccountIsDepositedDueToSMSFees(bankAccountId.Id, SmsFees);
        
        var depositFromBankAccountCommand = new DepositFromBankAccountCommand(depositAmount);

        // Action and Outcome
        InTermsOfAggregateRoot<BankAccount, BankAccountId>
            .IfIApplied(aNewBankAccountIsOpened,
                theBankAccountIsDepositedDueToBankFees,
                theBankAccountIsDepositedDueToSmsFees)
            .WhenICall(bankAccount => bankAccount.Deposit(depositFromBankAccountCommand))
        .ThenIWillExpectTheseEvents(new TheBankAccountIsDepositedFromPOS(bankAccountId.Id, (InitialBalance - (BankFees + SmsFees)) - depositAmount));
    }