Question

[HttpGet]
        [Authorize]
        public ActionResult Create() //loads the form
        {
            var categoryList = new SelectList(new[] { "Electronics", "Toys","Books","Sporting Goods"}); //defines the categories
            ViewBag.CategoryList = categoryList;
            return View();
        }

我为此写了一个测试方法..

[TestMethod]

        public void TestCreate() {

            AdvertisementController controller = new AdvertisementController();
            var categoryList = new SelectList(new[] { "Electronics", "Toys", "Books", "Sporting Goods" });
            ViewResult result = controller.Create() as ViewResult;
            Assert.AreEqual(categoryList,result.ViewBag.categoryList);

        }

但它失败了。我想知道是什么情况。这有什么不对吗？

Answer 1

尝试以下

    [TestMethod]
    public void TestCreate() {

        // Setup
        AdvertisementController controller = new AdvertisementController();
        ViewResult result = controller.Create() as ViewResult;

        var expectedCategories = new SelectList(new[] { "Electronics", "Toys", "Books", "Sporting Goods" }).ToList();

        // Execute
        var actualCategories = result.ViewBag.categoryList.ToList();

        // Assert
        Assert.IsNotNull(result); 
        Assert.AreEqual(expectedCategories[0], actualCategories[0]);
        Assert.AreEqual(expectedCategories[1], actualCategories[2]);
        Assert.AreEqual(expectedCategories[2], actualCategories[3]);
        Assert.AreEqual(expectedCategories[3], actualCategories[4]);
        Assert.AreEqual(expectedCategories[4], actualCategories[5]);

    }

基本上，在此，您将验证结果是否等于某个内容，并且数组中的每个项目与预期项目匹配。

注意：我没有在IDE中连接它，因此它可能有一些错误。

Answer 2

并不完全清楚这里发生了什么，但似乎测试正在比较MVC操作和单元测试中使用的SelectList的确切实例。

您应该比较SelectList中的每个项是否相同。

在c＃中编写测试用例

2 个答案: