SSPackagereference in .prj

[amitabhchauhan]

I have written unit tests for my dev code. I am have exposed internals of dev code for my uts using "internalsvisibleto". Problem is in test code I need to use SSPackageReference for referring to my dev code due to internalsvisibleto. On compiling it is generating a single js file with all dev and test code together.
This creates problem while performing code coverage etc.
Is there any way I can avoid dev code getting clubbed into test.js file?