Test for unstestable-wrapper

untestable-wrapper.spec.ts

import { expect } from 'chai';
import * as wrapper from '../src/untestable-wrapper';
import untestableOldFunction = require('untestable-old-function');

describe('untestable-wrapper', () => {
  it('should export untestableOldFunction as nowTestableOldFunction', () => {
    expect(wrapper.nowTestableOldFunction).to.be.eq(untestableOldFunction);
  });
});