起訂量：取決於方法參數如何返回結果？

Question

ICustomerRepository定義：客戶GetCustomerByID（INT的CustomerID）;

//Arrange 
var customers = new Customer() 
{ 
    new Customer() { CustomerID = 1, Name = "Richard" }, 
    new Customer() { CustomerID = 2, Name = "Evan" }, 
    new Customer() { CustomerID = 3, Name = "Marie-France" }, 
}.AsQueryable(); 

Mock<ICustomerRepository> mock = new Mock<ICustomerRepository>(); 

如何判斷起訂量返回正確的客戶依賴於在客戶paremeter ???

我已經能夠成立的第一部分，而不是返回的對象。

mock.Setup(m => m.GetCustomerByID(It.Is<int>(i => i >= 0))).Returns(/// To be define///) 

的想法是有相同的結果，因爲這：

public Customer GetCustomerByID(int CustomerID) 
{ 
    return customers.FirstOrDefault(c => c.CustomerID == CustomerID); 
} 

感謝您的幫助

Answer 1

mock.Setup(x => x.GetCustomerByID(It.IsAny<int>())) 
    .Returns((int id) => 
    customers.FirstOrDefault(c => c.CustomerID == id)); 

只是讓客戶List<Customer> - 無需AsQueryable已。