Detox A year in. Building it, Testing with it

on YouTube ↗30m

" summary

Detox is gray-box end-to-end testing for React Native that embeds code in the app and synchronizes on real idle state instead of relying on sleeps. It extends EarlGrey and Espresso via a JSON reflection protocol so Node tests invoke native methods and assertions run inside the app process. Tests stop being intermittently flaky (0.5% per-test flakiness gives ~22% flaky suites for 50 tests) and parallel runs cut a single-simulator 520s suite to about 243s.

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" chapters (18)

1. 0:00Detox introduction
2. 1:07Why Wix chose React Native
3. 3:40Flaky end-to-end tests problem
4. 6:49Black-box testing fails
5. 7:10Detox gray-box testing
6. 9:17Detox native synchronization
7. 11:45Detox architecture
8. 13:12Live demo
9. 13:54Production vs mocked tests
10. 16:46Mocking server endpoints
11. 19:00Mocking in Detox tests
12. 21:07Predictability in testing
13. 22:13Detox impact on features
14. 23:43Detox in CI/QA
15. 25:15Parallel testing gains
16. 26:17Recording test artifacts
17. 27:02Performance monitoring
18. 28:29Detox future plans

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