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import requestLib from 'got';import throttled from '../lib/utils/throttle.js';import sinon from 'sinon';import { assert } from 'chai';
describe('Throttle tests', function () {  this.timeout(6000);  let server;
  // Create a fake http server to emulate http call and responses.  before(function () {    server = sinon.fakeServer.create();  });
  // Remove any server responses added in current test suite.  after(function () {    server.restore();  });
  const url = 'https://yesno.wtf/api'; // Fake url used in this test, it could be anything.
  it('Should make three requests with 2000ms interval. (Throttle function)', function () {    // If we don't want to rely on the availability of a particular api we can use mocks.    // The fake server intercept http calls and return specified objects if it mach the same method/url.    server.respondWith('GET', url, JSON.stringify({ test: 'this works' }));    const req = throttled(requestLib, {      limit: 1,      interval: 2000    });    return Promise.all([req({ url }), req({ url }), req({ url })])      .then((response) => response.map(req => new Date(req.headers.date).getTime()))      .then((dates) => {        const firstAndSecondReq = dates[1] - dates[0];        const secondAndThirdReq = dates[2] - dates[1];
        assert.isAtLeast(firstAndSecondReq, 1000);        assert.isAtMost(firstAndSecondReq, 3000);        assert.isAtLeast(secondAndThirdReq, 1000);        assert.isAtMost(secondAndThirdReq, 3000);      });  });});