send/test/frontend/frontend.bundle.js

class FakeFile extends Blob {
    constructor(name, data, opt) {
        super(data, opt);
        this.name = name;
    }
}

window.Raven = {
    captureException: function(err) {
        console.error(err, err.stack);
    }
}

window.FakeFile = FakeFile;
window.FileSender = require('../../frontend/src/fileSender');
window.FileReceiver = require('../../frontend/src/fileReceiver');
window.sinon = require('sinon');
window.assert = require('assert');
const utils = require('../../frontend/src/utils');
window.hexToArray = utils.hexToArray;
window.arrayToHex = utils.arrayToHex;