When update to react 19, some test cases was throw error ReferenceError: MessageChannel is not defined. I try to find solution on the internet but seem like no one have issue like me. finally, I found solution to fix it base on this link:

My solution is add "react-dom/server": "react-dom/server.edge" to moduleNameMapper in the file jest.config.ts (or jest.config.js)

...
moduleNameMapper: {
    ...
    "react-dom/server": "react-dom/server.edge",
},
...