Jest 不会清除缓存

Question

Jest is running old, outdated, commented out piece of code even after clearing it's cache.

It's almost like it's stuck in the past and i've ran the jest --clearCache command but this doesn't seem to solve this issue. if i comment out a test block, our even delete the test file, the test still runs. which is super super weird.

This is what my script looks like:

 "test": "jest  --detectOpenHandles --watchAll --forceExit",

Answer 1

It appears you might have jest installed globally and locally (in the project). So when you run jest --clearCache you are running it on the global installation of jest but in a package.json script it will call the jest local to the project. This means you have two caches (one gloabal and one local) and are simply trying to delete the wrong one.

In order to delete the projects cache you need to run:

npm run jest --clearCache
// or if using yarn
yarn jest --clearCache

also, (to address your comment) you can check where the cache directory is with:

jest --showConfig | grep cacheDir
// or in the project
npm run jest --showConfig | grep cacheDir

then delete the folder it returns.