The Importance of Flaky Test Exercise in Cypress
Flaky tests can be a recurring nightmare for developers, causing frustration and wasting valuable time. In Cypress, a flaky test is a test that fails intermittently due to non-deterministic behavior or timing issues. These tests can be a major roadblock in the continuous integration and delivery process, as they lead to unreliable test results and can delay the release of software.
Level 1 Flaky Test Exercise
As part of the Cypress Flaky Test Exercise: Level 1, developers are tasked with identifying and fixing flaky tests in their test suite. This exercise helps developers build a deeper understanding of the Cypress testing framework and improve the stability of their tests.
Steps to Complete the Exercise:
- Identify flaky tests in your test suite by running your tests multiple times.
- Debug the flaky tests to understand the root cause of the failures.
- Implement fixes to make the tests more stable and reliable.
- Rerun the tests to ensure that the fixes have resolved the flakiness.
Benefits of Completing the Exercise:
- Improved test stability: By fixing flaky tests, developers can trust the test results and ensure that failures are actual bugs rather than temporary issues.
- Faster test execution: Stable tests allow for quicker feedback on the code changes, leading to faster development cycles.
- Enhanced developer skills: The exercise challenges developers to think critically about their test implementation and improve their problem-solving skills.
Completing the Cypress Flaky Test Exercise: Level 1 is an essential step in mastering the Cypress testing framework and building robust test suites. By addressing flaky tests early on, developers can create a solid foundation for their test automation efforts and ensure the reliability of their application.
Hi, gleb, so thanks for teaching about flaky tests.
Flaky tests often exist in real-world projects.
It is very difficult to debug a flaky case.
in this level 1 example
I wonder how you knew the root cause was not enough wait?
How to find out or debug at first?
so thanks
While debugging the flaky test I added an assertion that the button shows the value "Saving" `cy.get('input[value="Saving…"]').should('be.visible')` and then that it doesn't exist. But it was still failing, then I added assertion for each input field to check for the expected value, although I didn't really think this would fix the flake.
Then I gave up and added a timeout 😁
`// the "Saving" message should not exist
cy.get('input[value="Saving…"]', { timeout: 10000 }).should('not.exist')`
I guess I was on the right track, I was also thinking of intercepting the loading spinner but it just seemed I was overcomplicating things, not sure if I would be worth intercepting and aliasing the loading spinner request 🤷🏽
Love the excercises! Thanks 👏🏽
Love this type of videos!
Thank you for your content 😉
Hi sir,
Can you show me how to do parallel run for free for the cucumber feature files