Question

我已经设置了2个wcf服务 PdfService.svc 和 MailService.svc

MailService附加PDFService生成的PDF，即

   public void SendMail(ICommand command)
    {
       // how should I handle this in Unit Test (mocks with NSubstitute)
       _service = new PdfService(_pdfSettings);
       var request = new DownloadRequest {FileName = "form.pdf", 
                                          FormEntry = command.FormEntry };
       var thefile = _service.DownloadFile(request);

       sendEmail(command.Mail, thefile.FileByteStream);
    }

我想知道在测试MailService时如何删除PdfService，这对于将wcf与wcf进行通信是一个坏主意吗？

谢谢！

Answer 1

您可能想要使用Dependency Injection和Mock Objects。

一般的想法是在方法调用或对象构造函数中将服务传递给您的方法。使用您提供的代码段，我会以这种方式重写：

//Method Call
IPdfService mockService = new MockPdfService() // this is a mock that implements your interface
SendMail(cmd, mockService);

//Method
public void SendMail(ICommand command, IPdfService service)
{
   // how should I handle this in Unit Test (mocks with NSubstitute)
   _service = new PdfService(_pdfSettings);
   var request = new DownloadRequest {FileName = "form.pdf", 
                                      FormEntry = command.FormEntry };
   var thefile = service.DownloadFile(request);

   sendEmail(command.Mail, thefile.FileByteStream);
}

在您的mockService中，您可以添加诊断帮助，然后您可以在sendmail调用后编写Asserts以查看模拟中发生的事情。

可能更好的方法是让主类构造函数获取服务对象，然后重写方法调用，如下所示：

public class MyClass
{
    private IPdfService _pdfService;

    public MyClass()
    {
        _pdfService = new PdfService(_pdfSettings);
    }        

    // Call this with your Mock pdfService
    public MyClass(IPdfService pdfService)
    {
        _pdfService = pdfSerivce;
    }

    public void SendMail(ICommand command)
    {
        var request = new DownloadRequest  { FileName = "form.pdf", FormEntry = command.FormEntry };
        var thefile = _pdfService.DownloadFile(request);
        sendEmail(command.Mail, thefile.FileByteStream)
    }
}

如何单元测试调用其他WCF的WCF服务

1 个答案: