When comparing Intern vs Cypress, the Slant community recommends Cypress for most people. In the question“What are the best JavaScript unit testing frameworks for frontend applications?” Cypress is ranked 5th while Intern is ranked 7th. The most important reason people chose Cypress is:
You can edit your test code in the browser and instantly see it run as you change the code.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Good documentation
Well documented with easily available examples repository.
Pro Run Tests in Browser
Pro Code coverage
Pro CI services integration
Can be integrated to work with Jenkins or TeamCity.
Pro Web UI to develop tests quickly
You can edit your test code in the browser and instantly see it run as you change the code.
Pro Easy to record a video
It can easily record a video so you can understand what happened when a test failed in your CI.
Pro Amazing dashboard to view reports and recordings
The Cypress dashboard allows you to see every run on a great UI linked to commits and gitflow.
Pro Cross Browser testing
https://docs.cypress.io/guides/guides/cross-browser-testing.html
Chrome
Firefox
Edge
Electron
Brave
Cons
Con Doesn't support Safari
Con Single tab only
Does not and will not support multiple tabs or multiple simultaneous browsers.
See https://docs.cypress.io/guides/references/trade-offs.html#Permanent-trade-offs-1
Con Heavy in setup
Do not add Cypress in the main repo. Have a specific test repo for it or you will be sorry when the CI/CD flow takes 5-6 min longer every build due to installation time of Cypress.