unittest with Visual D

[Dominikus Dittes Scherkl via Digitalmars-d-learn]

I finaly got managed to install Visual D on my Windows PC (thanks 
to the new community version of Visual Studio), but the cool 
point "Compile and Run" seems to have a problem with some of my 
unittests:

I get the error "template instance xy is not defined" if a 
specific instantiation is not used in my main program.
But shouldn't the compiler build all instantiations used within a 
unittest?!?

What am I missing?