public void GetByPaymentId_should_return_not_found_if_the_payment_is_not_found()
{
var payments = new Mock <IPaymentRepository>();
payments.Setup(p => p.GetByPaymentId(It.IsAny <Guid>())).Returns((PaymentEntity)null);
var controller = new PaymentController(Mock.Of <IBank>(), payments.Object);
IActionResult result = controller.GetByPaymentId(Guid.NewGuid());
Assert.True(result is NotFoundResult);
}