fetchTimelineFirstExample.spec.js

// spec/javascripts/integration/twitter/fetchTimeline.spec.js

import { expect } from 'chai';
import sinon from 'sinon';

describe('fetchTimeline', () => {
  let server;

  beforeEach(() => {
    server = sinon.fakeServer.create();
    server.autoRespond = true;
  });
  afterEach(() => { server.restore(); });

  const response = { tweets: [{ text: 'Hi!' }] };

  context('when timeline response is ok', () => {
    it('runs only then callback', () => {
      server.respondWith('GET', '/twitter_timeline/thiagoaraujos', [
        200, { 'Content-Type': 'application/json' }, JSON.stringify(response),
      ]);

      const promise = fetchTimeline('thiagoaraujos').catch(() => 'notMe');

      return promise.then((body) => {
        expect(body).to.deep.equal(response);
      });
    });
  });
});