test.spec.js

import chai from 'chai';
import 'chai/register-should';
import chaiHttp from 'chai-http';

import app from '../../src/app.js';
import { publications, articles } from '../mockData';

chai.use(chaiHttp);

describe('GET all articles for a particular publication', () => {
  it('should return a 404 if publication does not exist', (done) => {
    chai.request(app)
      .get(`/api/${publications.invalid}`)
      .end((err, res) => {
        if (err) done(err);

        res.status.should.eql(404);
        res.body.message.should.eql('no such publication found');
        done();
      });
  });

  it('should return an array containing the publication\'s articles', (done) => {
    chai.request(app)
      .get(`/api/${publications.valid}`)
      .end((err, res) => {
        if (err) done(err);

        res.status.should.eql(200);
        res.body.articles.should.be.an('array');
        res.body.articles[0].should.have.all.keys(Object.keys(articles[0]));
        done();
      });
  });
});

Good job. What does "publications.valid" and "publications.invalid" represent?

Good job. What does "publications.valid" and "publications.invalid" represent?

Thanks, @marcdomain. 🙏

To your question, publications, imported on line 6, is an object which would contain various valid publication names and invalid ones as well. It would essentially take the following form:

const publications = {
  valid: 'a-valid-publication',
  invalid: 'this-publication-does-not-exist-yet'
};

Thanks for taking time out to go over my work.