fix unit test
fix unit test

marcelometal/thumbor,marcelometal/thumbor,thumbor/thumbor,kkopachev/thumbor,thumbor/thumbor,thumbor/thumbor,kkopachev/thumbor,gi11es/thumbor,marcelometal/thumbor,gi11es/thumbor,voxmedia/thumbor,scorphus/thumbor,voxmedia/thumbor,thumbor/thumbor,scorphus/thumbor,okor/thumbor,voxmedia/thumbor,okor/thumbor,scorphus/thumbor,kkopachev/thumbor,kkopachev/thumbor,gi11es/thumbor,scorphus/thumbor,okor/thumbor