Cypress retries and flakyness

[clementoriol]

While working on making my tests less flaky and avoiding the dreaded "element is detached from the DOM", I realized that usually when I'm having flakyness issues, retry won't usually help.

Let's say I've got a test assertion failing 1% of the time because of a "element is detached from DOM" issue, if the runner retries 3 times, every of the 3 retries will fail on the same error.

This confuses me a lot because I can't explain why it happens, and thought retry could be an appropriate (even if not perfect) solution for flakyness.

Did anyone experienced this too ?

[jjhelguero]

You'll have to dig deeper into the element that is consistently failing. It helps to use more assertions. This video goes into good detail about ways to avoid element is detached from the DOM error.
https://glebbahmutov.com/blog/detached/

[muratkeremozcan]

Also check out https://www.youtube.com/watch?v=deNl1q1el0E&t=172s.

There is also cy.CDP, the shotgun.

https://github.com/muratkeremozcan/fastify-example-tests/blob/main/cypress/integration/bonus11.js