Added tests for sub comb
Added tests for sub comb

dankogai/roast,zostay/roast,cygx/roast,b2gills/roast,niner/roast,b2gills/roast,laben/roast,cygx/roast,b2gills/roast,zostay/roast,laben/roast,skids/roast,perl6/roast,bitrauser/roast,cygx/roast,dankogai/roast,niner/roast,dankogai/roast,laben/roast,niner/roast,skids/roast,skids/roast,dogbert17/roast,dogbert17/roast,bitrauser/roast,zostay/roast