message: add chai dep
diff: @@ -10,6 +10,7 @@ before_script:
  - git submodule update --init --recursive
  - yarn add coveralls --save-dev
  - yarn add mocha jsdom jest react-test-renderer --save-dev
  + - yarn add chai --save-dev
  - yarn add jsdom --save-dev
  - yarn add jest --save-dev
  - yarn add react-test-renderer --save-dev
  