>>UPDATE. I re-tested by placing all dlls into bin/debug folder. It didn't work for me. Looks like I do need to hardcode the path?
>>
>>UPDATE 2. After placing all dlls into debug folder for the Test project I was able to debug my test OK. So, I assume it should work fine without specifying the paths. I'm going to re-test it.
>>
>Think it's explained here https://stackoverflow.com/questions/8836093/how-can-i-specify-a-dllimport-path-at-runtime

Don't you think I studied that link before?