public async Task ProcessPayment_When_Payload_Is_Invalid_Then_Return_BadRequestResult()
{
_mockPaymentsService.Setup(x => x.ProcessPayment(It.IsAny <PaymentRequest>()))
.ReturnsAsync(false);
var controller = new PaymentsController(_logger, _mockPaymentsService.Object, _mockBankService.Object);
var paymentRequest = new PaymentRequest
{
ExpiryMonth = DateTime.Now.Month,
ExpiryYear = DateTime.Now.Year
};
var validator = new PaymentRequestValidator();
var validationResult = await validator.ValidateAsync(paymentRequest);
validationResult.AddToModelState(controller.ModelState, null);
var expected = new BadRequestResult();
var actual = await controller.ProcessPayment(paymentRequest);
actual.Should().BeEquivalentTo(expected);
}