What is “selenium-server-standalone” Package?

Browser automation for testing purposes
For more details: http://seleniumhq.org/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install selenium-server-standalone.

  brew install selenium-server-standalone

Now, use selenium-server-standalone!