public void PaymentRequest_NewInsufficientFundsRequest()
{
var date = new DateTime(2020, 3, 1);
var amount = 10;
var model = PaymentRequest.NewInsufficientFundsPaymentRequest(date, amount);
Assert.Equal(date, model.Date);
Assert.Equal(amount, model.Amount);
Assert.Equal(PaymentStatus.Closed, model.Status);
Assert.Equal("Not enough funds", model.Reason);
}