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TypeError: Illegal invocation when running app tests with jest

See original GitHub issue

● Test suite failed to run

    TypeError: Illegal invocation

      at Node.get [as childNodes] (node_modules/jsdom/lib/jsdom/living/generated/Node.js:423:13)
      at Node.get (node_modules/smooth-dnd/dist/index.js:1:15997)
      at node_modules/smooth-dnd/dist/index.js:1:15891
      at Object.<anonymous> (node_modules/smooth-dnd/dist/index.js:1:16064)
      at Object.<anonymous> (node_modules/smooth-dnd/dist/index.js:1:16414)
      at n (node_modules/smooth-dnd/dist/index.js:1:358)
      at Object.<anonymous> (node_modules/smooth-dnd/dist/index.js:1:16522)
      at Object.<anonymous> (node_modules/smooth-dnd/dist/index.js:1:23545)
      at n (node_modules/smooth-dnd/dist/index.js:1:358)
      at Object.<anonymous> (node_modules/smooth-dnd/dist/index.js:1:23661)

Issue Analytics

State:
Created 5 years ago
Comments:10

Top GitHub Comments

7reactions

alexandreDavidcommented, Feb 19, 2019

I added this to the setup.js and it works:

Object.defineProperty(global, 'Node', {
  value: {firstElementChild: 'firstElementChild'}
})

6reactions

leotabosacommented, Aug 4, 2021

Mocking the library is a solution if that’s ok to you.

https://jestjs.io/docs/manual-mocks#mocking-node-modules

//  smooth-dnd.js or vue-smooth-dnd.js inside __mocks__ folder

module.exports = {
  // some mock implementation
}

Solves the problem and as a plus we don’t mess with the environment.

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