throw exceptions from NSubstitute

Suppose you might normally mock a repository call in NSubstitute like so...

Repo.GetLastName(Arg.Any<string>()).Returns("Smith");

 
 

Alight, well how would you emulate the repository just blowing up as if the database were unaccessible. What then? Try this:

Repo.GetLastName(Arg.Any<string>()).Returns(x => { throw new Exception(); });