tree 8690952ff38776c614b9fb903e9734397b0abcd9
parent 9b3b4f358a8c613439d391ab416ad137bc482ff4
author dvdli <dvdli@google.com> 1621423383 +0800
committer dvdli <dvdli@google.com> 1621423383 +0800

refine null parameters checking and add a unit test case