使用mock進行單元測試

Question

我正在嘗試對我的應用進行單元測試。 這是我的測試：

class CustomerControllerTest
{
    [Test]
    public void GetAuctionsByJson_works()
    {
        // Arrange
        Mock<IAuctionRespository> mockAuction = new Mock<IAuctionRespository>();
        mockAuction.Setup(m => m.Auctions).Returns(new Auction[]
            {
                new Auction { a_id=1, auctionname="computer", deadLine=DateTime.Today},
                new Auction { a_id=2, auctionname="keyboard", deadLine=DateTime.Today},
                new Auction { a_id=3, auctionname="mouse", deadLine=DateTime.Today}
            }.AsQueryable());
        CustomerController controller = new CustomerController(mockAuction.Object);
        var actual = controller.GetAuctionsByJson() as JsonResult;
        //parse result
        List<Auction> result = actual.Data as List<Auction>; //null
        Assert.AreEqual(3, result.Count);
        Assert.AreEqual(1, result[0].a_id);
        Assert.AreEqual("computer", result[0].auctionname);
        Assert.AreEqual(DateTime.Today, result[0].deadLine);

    }
}

var actual有值（如圖中所示） 實際值，但我得到的var結果是null 結果為什么？ 我怎樣才能在列表中獲得實際值？ 謝謝

Answer 1

謝謝安德烈！ 我的解決方案是添加以下行：

JavaScriptSerializer serializer = new JavaScriptSerializer();
List<Auction> result = serializer.Deserialize<List<Auction>>(serializer.Serialize(actual.Data));