add sort tests
add sort tests

HackLinux/pyes,HackLinux/pyes,haiwen/pyes,HackLinux/pyes,Fiedzia/pyes,aparo/pyes,jayzeng/pyes,Fiedzia/pyes,jayzeng/pyes,aparo/pyes,Fiedzia/pyes,mavarick/pyes,jayzeng/pyes,mavarick/pyes,haiwen/pyes,aparo/pyes,haiwen/pyes,mavarick/pyes