使用Moq进行单元测试存储库

Question

我对Moq完全不熟悉,到目前为止,我们刚刚完成了Pro asp.net框架中概述的示例.在书中,一些crud被放置在控制器中,例如通过id获取客户 - 可能是出于简洁的原因.我决定将这种类型的功能放在存储库中,只需在控制器中调用它,就像"customerRepository.GetCustomerByID(id);" 测试这样的东西的最佳方法是什么？我创建了以下单元测试,由于某种原因,它返回一个null Customer.

List<Customer> customer = new List<Customer>();

customer.Add(new Customer { CustomerId = 1, FirstName = "test", LastName = "wods", Sex = true });
mockRepos = new Moq.Mock<ICustomerRepository>();
mockRepos.Setup(x => x.Customers).Returns(customer.AsQueryable());

CustomersController controller = new CustomersController(mockRepos.Object);

//Act
ViewResult results = controller.Edit(1);

var custRendered = (Customer)results.ViewData.Model;
Assert.AreEqual(2, custRendered.CustomerId);
Assert.AreEqual("test", custRendered.FirstName);

和控制器

public ViewResult Edit(int id)
{
    Customer customer = customerRepository.GetCustomerByID(id);           

    return View(customer); //this just returns null??
}

我想我很傻,但任何帮助都会受到更多的赞赏.

Answer 1

你需要设置你的模拟以期望调用GetCustomerById而不是Customers属性.像这样的东西:

mockRepos.Setup(x => x.GetCustomerById(1)).Returns(customer[0]);