jsdom-extended.js

const JSDOMEnvironment = require("jest-environment-jsdom").default; // or import JSDOMEnvironment from 'jest-environment-jsdom' if you are using ESM modules

class JSDOMEnvironmentExtended extends JSDOMEnvironment {
	constructor(...args) {
		super(...args);

		this.global.ReadableStream = ReadableStream;
		this.global.TextDecoder = TextDecoder;
		this.global.TextEncoder = TextEncoder;

		this.global.Blob = Blob;
		this.global.Headers = Headers;
		this.global.FormData = FormData;
		this.global.Request = Request;
		this.global.Response = Response;
		this.global.Request = Request;
		this.global.Response = Response;
		this.global.fetch = fetch;
		this.global.structuredClone = structuredClone;
	}
}

module.exports = JSDOMEnvironmentExtended;