Modern Front-End Development for Rails, 2nd Edition

Installing Cypress

Setting up Cypress involves two different steps. First, we need to install Cypress itself and then install the cypress-rails gem to help us integrate Cypress into our system.

Install Cypress as a package:

​$ ​​yarn​​ ​​add​​ ​​--dev​​ ​​cypress​

On the Rails side, we need to make sure we have two gems: the cypress-rails gem and the dotenv gem. The gems both go in the Gemfile in the development and test groups, they are already in place in the sample code:

group ​:development​, ​:test​ ​do​
  ​# <existing gems...>​
  gem ​"cypress-rails"​
  gem ​"dotenv-rails"​
​end​

The cypress-rails gem uses environment variables to manage some settings, so ...