Add tests for 2010 Advent calendar day 4.
Add tests for 2010 Advent calendar day 4.

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