See related issue.
Suggestions from hainenber has been applied.
It seems that 'transformIgnorePatterns' is not taken into account.
This repo uses @vueuse/core v13.6.0. Since v13.0.0 this packages produces esm only, so it needs transformation for jest to run it.
As far as I know transformIgnorePatterns: ['/node_modules/(?!(@vueuse)/)'] or transformIgnorePatterns: ['/node_modules/(?!(\\@vueuse)/)'], should do the trick, but neither works.
Steps to reproduce :
npm ci
npm run test