tree 19db86f5042d9b5ff290f38743b0bbda8eb75c18
parent be3fa5156721153ef59b8d548afa0db2d89ed7b4
author Tao Zhou <taoalpha@google.com> 1578921709 +0100
committer Tao Zhou <taoalpha@google.com> 1578921723 +0100

Always use `done` pattern for async tests

Return promise for async tests also works, but not good for readability.

Change-Id: I479a708cdaf7c92e6767f168f4468b7c787512bd