React Native: Bug Squashing Season - When Tests Test Themselves Into Infinity
Today we're diving into a delightfully sneaky bug that was hiding in React Native's test suite - infinite recursion that was caught by some clever lint detection. Ron Edelstein stepped in to fix methods that were literally calling themselves forever in the ReactProp annotation tests.
Duration: PT3M34S
Episode overview
This episode is a short developer briefing from React Native.
It explains recent repository work in plain language.
- Show: React Native
- Published: 2026-02-23T11:09:31Z
- Audio duration: PT3M34S
Transcript excerpt
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Hey there, fantastic developers! Welcome back to another episode of the React Native podcast. I'm your host, and wow, do I have a fun little story for you today. You know those bugs that make you go "how did this even work before?" Well, we've got a perfect example of that from the React Native codebase.
So picture this - you're writing tests, everything seems fine, and then suddenly someone runs a fancy lint detector and discovers that your test methods have been stuck in an eternal conversation with themselves. That's exactly what happened in the React Native Android test suite, and honestly, it's the kind of bug…
Ron Edelstein swooped in with a fix that's as elegant as it is simple. We had this test file called ReactPropAnnotationSetterSpecTest - quite a mouthful, I know - and buried inside were two methods that were doing something absolutely wild. Instead of creating actual instances like they were supposed to, they were…
The first culprit was createShadowNodeInstance. This method was supposed to create a shadow node for testing, but instead it was like that person who answers every question with the same question. "Hey, create a shadow node instance!" "Okay, let me create a…
The…
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