You should install codeceptJS globally
npm i -g codeceptjs
For init you codeceptJS json you should enter:
codeceptjs init
For method suggestion in your IDE (e.g - Webstorm)
codeceptjs def
You should install gulp in order to be able to use the gulp-tasks
To install gulp run:
npm install --global gulp-cli
npm install --save-dev gulp
You should install selenium standalone server and chromedriver from npm
npm i -g selenium-standalone
selenium-standalone install
To run selenium task install 'gulp-exec' module -
npm install --save-dev gulp-exec
npm install --save-dev child_process
To run selenium server use
gulp selenium