tree 7d08717b56601c7bfb0853773cf45612d5cc8c28
parent 64514dc54e9f60491dcf08f4edcabccefa47f23c
author Haoming Zhang <zhm1993zhm@gmail.com> 1495671711 -0700
committer Haoming Zhang <zhm1993zhm@gmail.com> 1495671711 -0700

reformat code for unit tests, add a new test case, coverage increased to 75%