public void GET_CalculateGiftAid_ReturnsCalculatedAmount()
{
var expected = 2.5m;
service.CalculateGiftAidAmount(Arg.Any <decimal>()).Returns(Result.Ok <decimal>(2.5m));
var result = controller.CalculateGiftAid(10);
Assert.IsTrue(result is OkObjectResult);
var okResult = result as OkObjectResult;
Assert.AreEqual(200, okResult.StatusCode);
Assert.AreEqual(expected, ((GiftAidResponse)okResult.Value).GiftAidAmount);
service.Received().CalculateGiftAidAmount(Arg.Any <decimal>());
}
public void CalculateGiftAid_CallsHandlerCalculateGiftAid_WithAmountProvided()
{
_controller.CalculateGiftAid(25.0);
_handler.Verify(c => c.CalculateGiftAid(25.0), Times.Once);
}