一个神奇的测试问题
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[已解决问题]
解决于 2012-06-19 15:12
public ViewResult Edit(int productId) { Product product = repository.Products.FirstOrDefault(p => p.ProductID == productId); return View(product); }
这个是原始的方法
测试代码如下：
测试代码1：
[TestMethod] public void Can_Edit_Product() { // Arrange - create the mock repository Mock<IProductRepository> mock = new Mock<IProductRepository>(); mock.Setup(m => m.Products).Returns(new Product[] { new Product {ProductID = 1, Name = "P1"}, new Product {ProductID = 2, Name = "P2"}, new Product {ProductID = 3, Name = "P3"}, new Product {ProductID = 4, Name = "P4"} }.AsQueryable()); // Arrange - create the controller AdminController target = new AdminController(mock.Object); // Act //Product p3 = target.Edit(3).ViewData.Model as Product; Product p4 = target.Edit(11).ViewData.Model as Product; Product p1 = target.Edit(11).ViewData.Model as Product; // Assert Assert.AreEqual(null, p4); //Assert.AreSame(p1, p4); }
这个时候测试通过。
请注意：
//Product p3 = target.Edit(3).ViewData.Model as Product;
这一行是注释掉了。
取消注释：
[TestMethod] public void Can_Edit_Product() { // Arrange - create the mock repository Mock<IProductRepository> mock = new Mock<IProductRepository>(); mock.Setup(m => m.Products).Returns(new Product[] { new Product {ProductID = 1, Name = "P1"}, new Product {ProductID = 2, Name = "P2"}, new Product {ProductID = 3, Name = "P3"}, new Product {ProductID = 4, Name = "P4"} }.AsQueryable()); // Arrange - create the controller AdminController target = new AdminController(mock.Object); // Act Product p3 = target.Edit(3).ViewData.Model as Product; Product p4 = target.Edit(11).ViewData.Model as Product; Product p1 = target.Edit(11).ViewData.Model as Product; // Assert Assert.AreEqual(null, p4); //Assert.AreSame(p1, p4); }
测试就无法通过：
Assert.AreEqual failed. Expected:<(null)>. Actual:<SportsStore.Domain.Entities.Product>.
很奇怪啊， 为什么这个时候，p4是Product类型，而不是null呢？
谢谢。
最佳答案
0
问题还比较复杂
其他回答(1)
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你能把P4的值跟踪出来吗 ？
另外，你先运行P1，再运行P3，最后运行P4，结果又是如何？
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