Add tests for invalid unicode filenames
Add tests for invalid unicode filenames

Ref #1071

blindFS/powerline,dragon788/powerline,lukw00/powerline,QuLogic/powerline,darac/powerline,seanfisk/powerline,dragon788/powerline,IvanAli/powerline,blindFS/powerline,russellb/powerline,cyrixhero/powerline,bartvm/powerline,kenrachynski/powerline,xxxhycl2010/powerline,cyrixhero/powerline,Luffin/powerline,bartvm/powerline,QuLogic/powerline,xfumihiro/powerline,DoctorJellyface/powerline,russellb/powerline,DoctorJellyface/powerline,xxxhycl2010/powerline,junix/powerline,IvanAli/powerline,bartvm/powerline,dragon788/powerline,junix/powerline,IvanAli/powerline,kenrachynski/powerline,prvnkumar/powerline,areteix/powerline,Liangjianghao/powerline,QuLogic/powerline,EricSB/powerline,DoctorJellyface/powerline,junix/powerline,blindFS/powerline,S0lll0s/powerline,xxxhycl2010/powerline,areteix/powerline,lukw00/powerline,EricSB/powerline,seanfisk/powerline,wfscheper/powerline,xfumihiro/powerline,wfscheper/powerline,russellb/powerline,kenrachynski/powerline,lukw00/powerline,s0undt3ch/powerline,darac/powerline,areteix/powerline,bezhermoso/powerline,S0lll0s/powerline,firebitsbr/powerline,s0undt3ch/powerline,firebitsbr/powerline,prvnkumar/powerline,xfumihiro/powerline,firebitsbr/powerline,seanfisk/powerline,Luffin/powerline,darac/powerline,EricSB/powerline,bezhermoso/powerline,prvnkumar/powerline,Liangjianghao/powerline,Luffin/powerline,cyrixhero/powerline,s0undt3ch/powerline,Liangjianghao/powerline,wfscheper/powerline,S0lll0s/powerline,bezhermoso/powerline