2
我有一個客戶業務實體，只能通過CustomerFactory創建。但是，對於如何對使用Customer對象的類執行單元測試，我有疑問，因爲每當使用客戶時，單元測試都需要設置Customer及其CustomerFactory。涉及通過工廠問題和注意事項創建實體的單元測試類
使用CustomerFactory而不是構造函數的原因是它需要通過ICustomerValidator進行驗證。然而，將驗證邏輯放在構造函數中需要將ICustomerValidator注入構造函數，這可能不是所期望的。例如，在執行ICustomerService的單元測試時，必須創建設置步驟，包括創建和設置Customer和CustomerFactory（加上通過ICustomerValidator進行的客戶驗證，例如IdValidFirstName）。此外，無論客戶實例何時用於單元測試，這些設置都必須重複。
下面是一個正在單元測試的ICustomerService，但低於客戶的設定必須創建：
我想單元測試這個實現
public interface ICustomerService
{
bool AddCustomer(Customer customer);
}
public class Customer
{
internal Customer()
{ }
public int Id { get; internal set; }
public string Firstname { get; internal set; }
public string Surname { get; internal set; }
public DateTime DateOfBirth { get; internal set; }
public string EmailAddress { get; internal set; }
public bool HasCreditLimit { get; internal set; }
public Company Company { get; internal set; }
//... other properties
}
請注意，ICustomerService的兩個實施和ICustomerFactory取決於ICustomerValidator
public interface ICustomerFactory
{
Customer CreateCustomerWith(int id, string firstName, string surname, DateTime dateOfBirth, string emailAddress, Company company);
}
public class CustomerFactory : ICustomerFactory
{
private ICustomerValidator customerValidator;
public CustomerFactory(ICustomerValidator customerValidator)
{
this.customerValidator = customerValidator;
}
public Customer CreateCustomerWith(int id, string firstName, string surname, DateTime dateOfBirth,
string emailAddress, Company company)
{
//validation logic here ...
}
}
public interface ICustomerValidator
{
IDictionary<string, string> Errors { get; }
bool IsValid(Customer customer);
bool IsValidId(int id);
bool IsValidFirstName(string firstName);
bool IsValidSurname(string surname);
bool IsValidDateOfBirth(DateTime dateOfBirth);
bool IsValidEmailAddress(string emailAddress);
bool IsValidCompany(Company company);
}
但我必須設置該在執行單元測試ICustomerService，whic h似乎很多設置，或者它是正確的，還是有更好的方法（我可以使它重用，但仍然必須在ICustomerService的測試中調用它，是唯一的方法）？
private Customer CreatCustomer()
{
var customerId = 0;
var firstName = "John";
var surname = "Tom";
var emailAddress = "[email protected]";
var dateOfBirth = new DateTime(2013, 1, 1);
var company = new Company(34, "Unit", Classification.VIP);
SetupForCustomerCreation(customerId,firstName,surname,emailAddress,dateOfBirth,company);
var customer = this.customerFactory
.CreateCustomerWith(
customerId, firstName, surname, dateOfBirth, emailAddress, company);
return customer;
}
private void SetupForCustomerCreation(int customerId, string firstName, string surname, string emailAddress, DateTime dateOfBirth, Company company)
{
this.customerValidatorMock.Setup(c =>
c.IsValidId(customerId)).Returns(true);
this.customerValidatorMock.Setup(c =>
c.IsValidFirstName(firstName)).Returns(true);
this.customerValidatorMock.Setup(c =>
c.IsValidSurname(surname)).Returns(true);
this.customerValidatorMock.Setup(c =>
c.IsValidDateOfBirth(dateOfBirth)).Returns(true);
this.customerValidatorMock.Setup(c =>
c.IsValidEmailAddress(emailAddress)).Returns(true);
this.customerValidatorMock.Setup(c =>
c.IsValidCompany(company)).Returns(true);
}
在此先感謝！
請告訴我爲什麼downvote？這是別人可能會遇到的問題。 – Pingpong
認爲你錯過了一些代碼。什麼是customerValidatorMock，以及爲什麼需要多次運行安裝程序？附：我從來沒有低估過你。 – TheKingDave
請參閱我添加CustomerFactory的更新。 customerValidatorMock用於ICustomerService和ICustomerFactor。 – Pingpong