Version

28.1.3

Steps to reproduce

const ancestor = myElement.closest('.thisClass:has(+ .thisClass)')

Expected behavior

No syntax error found.

Actual behavior

Jest is flagging a syntax error:
SyntaxError: '+.thisClass,.thisClass' is not a valid selector

Additional context

I'm basically finding a parent of myElement that has a class of .thisClass that has a sibling with the same class.
It perfectly works on execution of the script, I can see no JS documentation saying it is not a valid selector, but Jest says it is...

I tried to replace .closest() by .querySelector() and it is accepted.
I tried to remove the + sign, and it is accepted.

Environment

System:
  OS: MacOS 14.7
  CPU: M3 pro
Binaries:
  Node: 20.9.0
  npm: 10.1.0
npmPackages:
  jest: 28.1.3