fluence-js/jest-patched-jsdom.js

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const Environment = require('jest-environment-jsdom');
module.exports = class CustomTestEnvironment extends Environment {
async setup() {
await super.setup();
if (typeof this.global.TextEncoder === 'undefined') {
const { TextEncoder, TextDecoder } = require('util');
this.global.TextEncoder = TextEncoder;
this.global.TextDecoder = TextDecoder;
this.global.Uint8Array = Uint8Array;
this.global.ArrayBuffer = ArrayBuffer;
}
}
};