How are you referencing IEmailService in the Tests project?

Hi,

I can see in your Unit Testing examples the usage of the IEmailService interface. How do you recommend referencing the Postal.dll from the Tests project? Do you just add the same Nuget Package to your Tests projects or would you just reference the DLL directly from the Packages folder??

This might be a general Testing / Nuget question, but I'm interested to know what the standard practise is for this sort of thing?

Thanks,
James.