ActionMailer FakeHttpContext

Question

我想为使用ActionMailer的代码创建单元测试，在我编写测试之后，我得到了httpContext参数的System.ArgumentNullException错误。

MailController.cs：

new Mailer().Welcome(new WelcomeModel 
{ 
    Name = "sss", 
    Email = model.Email 
}).Deliver(); 

MailControllerTest.cs：

var model = new WelcomeInputModel{ Email = "dsadsa@gmail.com" }; 
var result = _controller.SendMail(model); 
Assert.IsInstanceOfType(result, typeof(RedirectToRouteResult)); 

我应该怎么办？

UPDATE，我更新了我的代码：

MailControllerTest.cs：

var request = new Mock<HttpRequestBase>(); 
request.Setup(r => r.HttpMethod).Returns("GET"); 
_mockHttoContextBase.Setup(c => c.Request).Returns(request.Object); 

MailController.cs：

var controller = new MailController {HttpContextBase = _contextBase}; 
controller.Forgot(new ForgotModel 
{ 
    UserName = membershipUser.UserName, 
    Email = user.Email, 
    Password = membershipUser.ResetPassword() 
}).Deliver(); 

现在，我得到错误： System.Nul lReferenceException：未将对象引用设置为对象的实例。

Answer 1

你不需要伪造httpcontext，只是打破了你的控制器和ActionMailer之间的依赖关系。我给你写了一些包装。

Mailer.cs：

public interface IMailer 
{ 
    void SendMail(string viewName, IEnumerable<string> to, string subject, IEnumerable<string> replayTo); 

    void SendMail(string viewName, object model, IEnumerable<string> to, string subject, 
     IEnumerable<string> replayTo); 

    void SendMail(string viewName, IEnumerable<string> to, string from, string subject, IEnumerable<string> replayTo); 

    void SendMail(string viewName, object model, IEnumerable<string> to, string from, string subject, 
     IEnumerable<string> replayTo); 
} 

public class Mailer : MailerBase, IMailer 
{ 
    public void SendMail(string viewName, IEnumerable<string> to, string subject, 
     IEnumerable<string> replayTo = null) 
    { 
     foreach (var email in to) 
     { 
      To.Add(email); 
     } 
     Subject = subject; 
     if (replayTo != null) 
      foreach (var email in replayTo) 
      { 
       ReplyTo.Add(email); 
      } 

     Email(viewName).Deliver(); 
    } 

    public void SendMail(string viewName, object model, IEnumerable<string> to, string subject, 
     IEnumerable<string> replayTo = null) 
    { 
     foreach (var email in to) 
     { 
      To.Add(email); 
     } 
     Subject = subject; 
     if (replayTo != null) 
      foreach (var email in replayTo) 
      { 
       ReplyTo.Add(email); 
      } 

     Email(viewName, model).Deliver(); 
    } 

    public void SendMail(string viewName, IEnumerable<string> to, string from, string subject, 
     IEnumerable<string> replayTo) 
    { 
     foreach (var email in to) 
     { 
      To.Add(email); 
     } 
     From = from; 
     Subject = subject; 
     if (replayTo != null) 
      foreach (var email in replayTo) 
      { 
       ReplyTo.Add(email); 
      } 

     Email(viewName).Deliver(); 
    } 

    public void SendMail(string viewName, object model, IEnumerable<string> to, string from, string subject, 
     IEnumerable<string> replayTo) 
    { 
     foreach (var email in to) 
     { 
      To.Add(email); 
     } 
     From = from; 
     Subject = subject; 
     if (replayTo != null) 
      foreach (var email in replayTo) 
      { 
       ReplyTo.Add(email); 
      } 

     Email(viewName, model).Deliver(); 
    } 
} 

要使用包装，捆住他使用Ninject或任何你想要的库，并在控制器中使用它。

NinjectWebCommon.cs：

_kernel.Bind<IMailer>().To<Mailer>(); 

MailController.cs：

private readonly IMailer _mailer; 

public MailController(IMailer mailer) { 
    _mailer = mailer; 
} 

_mailer.SendMail("Forgot", new ForgotModel 
{ 
    UserName = membershipUser.UserName, 
    Email = user.Email, 
    Password = membershipUser.ResetPassword() 
}, new List<string> { model.Email }, _myEmail, "Your password", new List<string>()); 

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