asp: SmtpClient of Unit Testing

When sending email using smtpclient, we can create ismtpclient interfaces and Smtpclientwrapper adaptation classes, mock or custom fackesmtpclient ismtpclient in unit tests, But Ndumbster's Facke SMTP Server provides us with a more intuitive and straightforward way to unit test. You can search for ndumbster through NuGet , which uses netdumbster.

1.IEmailSender interface

 Public Interface iemailsender{    void SendMail (stringfromstringstring  string  body);}

2.SMTPAdapter Implementation Class

 Public Interface Public classsmtpadapter:iemailsender{ Public voidSendMail (string  from,stringTo,stringSubjectstringbody) {        varMessage =NewMailMessage (); Message. Isbodyhtml=true; Message. from=NewMailAddress ( from); Message. To.add (Newmailaddress (to)); Message. Subject=subject; Message. Body=body; using(varSmtpClient =NewSmtpClient ()) {            if(Smtpclient.host = =NULL) {Smtpclient.host="localhost";        } smtpclient.send (message); }    }}

3. Using the Ndumbster Unit test

 Public classsmtpadaptertest{[Fact] Public voidsendmailtest () {simplesmtpserver server= Simplesmtpserver.start ( -); Iemailsender Sender=NewSmtpadapter (); Sender. SendMail ("[email protected]","[email protected]","subject","Body"); Assert.equal (1, server.        Receivedemailcount); Smtpmessage Mail= (smtpmessage) server. receivedemail[0]; Assert.equal ("[email protected]", Mail. headers[" from"]); Assert.equal ("[email protected]", Mail. headers[" to"]); Assert.equal ("subject", Mail. headers["Subject"]); Assert.equal ("Body", Mail. messageparts[0].        Bodydata); Server.    Stop (); }}

asp: SmtpClient of Unit Testing