Enzyme Jest window.getSelection() does not work

You have to stub out window.getSelection().removeAllRanges(). I think this would work:

before(() => {
  window.getSelection = () => {
    return {
      removeAllRanges: () => {}
    };
  })
});

for me, I also need this mock window.document.getSelection = jest.fn()

2020 Update

I was struggling with this as well and @Mohammad comment pointed me in the right direction, so I decided to add that as an answer here to help others:

As mentioned by @Mohammad, jsdom is now on version 16, which supports getSelection. However, Jest@25 is still using older versions of jsdom, so what you can do is use this NPM package to "by pass" that:

https://www.npmjs.com/package/jest-environment-jsdom-sixteen

After the install, just update your Jest config to use this:

{
  "testEnvironment": "jest-environment-jsdom-sixteen"
}

Or, use it as a flag direct in the NPM command:

npm run test --env=jsdom-sixteen