如何模拟属于另一个方法内部的方法？

Question

这是我的示例代码：

public class PersonRepository : IPersonRepository
{
    private readonly IOrderRepository _orderRepository;
    public PersonRepository(IOrderRepository orderRepo)
    {
    _orderRepository = orderRepo;
    }
    public List<Person> GetPersonsList()
    {
    // some codes here
    //....
    
    // this function need to mock? because due to database connection no data coming in this orders variable,
    // so that the lines is not covered by code coverage
    List<Order> orders = _orderRepository.GetOrders(); //here doing some operation based on database
    foreach(Order order in orders)
    {
       // some code here
       //..
    }
    } 
}

// xunit

[Fact]
public void PersonRepository_GetPersonsList()
{
   _personRepository.GetPersonList();
}

如何模拟 _orderRepository.GetOrders();函数以便它附带一些示例数据并执行整个代码？

Answer 1

您需要创建 IOrderRepository 的模拟并设置 GetOrders 方法以返回所需的数据。
以下是使用 Moq 的示例：

[Fact]
public void PersonRepository_GetPersonsList()
{
   var orderRepositoryMock = new Mock<IOrderRepository>();
   orderRepository.Setup(o => o.GetOrders()).Returns(new List<Order>()); // Setup the data you want to return here

   var personRepository = new PersonRepository(orderRepository.Object);

   // Do the rest of your test
}