jest unit tests saying "TextDecoder is not defined" when testing any file that imports mapbox

[pdfabbro]

any unit test for a file that has "import mapboxgl from "mapbox-gl"" at the top fails with "TextDecoder is not defined"

mapbox-gl-js version: ^3.0.1

browser: n/a

[mattdean-digicatapult]

Possibly caused by jsdom/jsdom#2524?

We hit a simlar issue and jsdom/jsdom#2524 (comment) solved it for us in a jest setup file:

import * as util from 'util'

// ref: https://jestjs.io/docs/manual-mocks#mocking-methods-which-are-not-implemented-in-jsdom
// ref: https://github.com/jsdom/jsdom/issues/2524
Object.defineProperty(window, 'TextEncoder', {
  writable: true,
  value: util.TextEncoder
})
Object.defineProperty(window, 'TextDecoder', {
  writable: true,
  value: util.TextDecoder
})

[pdfabbro]

Thanks Matt, I'll give that a go at some point today and reply here to let you know if it resovled my issue

[pdfabbro]

@mattdean-digicatapult beautiful, that did the trick. Thanks! This can be closed