When comparing Ava vs Cypress, the Slant community recommends Cypress for most people. In the question“What are the best JavaScript unit testing frameworks?” Cypress is ranked 4th while Ava 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 Isolated tests
Each test is run in isolation.
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 No browser testing supported
Only supports tests in Node and the backend and not the browser.
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.