How to mock/fake SmtpClient in a UnitTest?

Question

I want to use it to fake System.Net.Mail.SmtpClient in a MS-Test UnitTest. Therefor I added a Fakes Assembmly of System.dll. Then I create a ShimsContext<

Answer 1

Another alternative is to use nDumbster:

Install-Package nDumbster

It runs an Smtp server in memory, which you can then verify against. It turns it more into an integration test, but generally those are higher value than unit tests, as you want to test the SmtpClient usage is also correct.