mercury-parser/src/extractors/custom/arstechnica.com/index.test.js

import assert from 'assert';
import URL from 'url';
import cheerio from 'cheerio';

import Mercury from 'mercury';
import getExtractor from 'extractors/get-extractor';
import { excerptContent } from 'utils/text';

const fs = require('fs');

describe('ArstechnicaComExtractor', () => {
  describe('initial test case', () => {
    let result;
    let url;
    beforeAll(() => {
      url =
        'https://arstechnica.com/gadgets/2016/08/the-connected-renter-how-to-make-your-apartment-smarter/';
      const html = fs.readFileSync(
        './fixtures/arstechnica.com/1587927767738.html'
      );
      result = Mercury.parse(url, { html, fallback: false });
    });

    it('is selected properly', () => {
      // This test should be passing by default.
      // It sanity checks that the correct parser
      // is being selected for URLs from this domain
      const extractor = getExtractor(url);
      assert.equal(extractor.domain, URL.parse(url).hostname);
    });

    it('returns the title', async () => {
      // To pass this test, fill out the title selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      const { title } = await result;

      // Update these values with the expected values from
      // the article.
      assert.equal(
        title,
        `The connected renter: How to make your apartment smarter`
      );
    });

    it('returns the author', async () => {
      // To pass this test, fill out the author selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      const { author } = await result;

      // Update these values with the expected values from
      // the article.
      assert.equal(author, `Valentina Palladino`);
    });

    it('returns the date_published', async () => {
      // To pass this test, fill out the date_published selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      const { date_published } = await result;

      // Update these values with the expected values from
      // the article.
      assert.equal(date_published, `2016-08-10T11:15:53.000Z`);
    });

    it('returns the dek', async () => {
      // To pass this test, fill out the dek selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      const { dek } = await result;

      // Update these values with the expected values from
      // the article.
      assert.equal(
        dek,
        'Turning your rented space into a smart home can be tricky; we have some advice.'
      );
    });

    it('returns the lead_image_url', async () => {
      // To pass this test, fill out the lead_image_url selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      const { lead_image_url } = await result;

      // Update these values with the expected values from
      // the article.
      assert.equal(
        lead_image_url,
        `https://cdn.arstechnica.net/wp-content/uploads/2016/07/smartapartment_hero5-640x215.jpg`
      );
    });

    // it('returns the pages_rendered', async () => {
    //     // To pass this test, fill out the pages_rendered selector
    //     // in ./src/extractors/custom/arstechnica.com/index.js.
    //     const { pages_rendered } = await result
    //
    //     // Update these values with the expected values from
    //     // the article.
    //     assert.equal(pages_rendered, `3`)
    //   });

    it('returns the content', async () => {
      // To pass this test, fill out the content selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      // You may also want to make use of the clean and transform
      // options.
      const { content } = await result;

      const $ = cheerio.load(content || '');

      const first13 = excerptContent(
        $('*')
          .first()
          .text(),
        13
      );

      // Update these values with the expected values from
      // the article.
      assert.equal(
        first13,
        "Name a home appliance or product, and there's probably a smart version of"
      );
    });
  });

  describe('Keep the first h2 on subsequent pages test', () => {
    let result;
    let url;
    beforeAll(() => {
      url =
        'https://arstechnica.com/science/2020/04/should-you-wear-a-face-mask-heres-all-the-data-we-have/2/';
      const html = fs.readFileSync(
        './fixtures/arstechnica.com/1587927767738.html'
      );
      result = Mercury.parse(url, { html, fallback: false });
    });

    it('is selected properly', () => {
      // This test should be passing by default.
      // It sanity checks that the correct parser
      // is being selected for URLs from this domain
      const extractor = getExtractor(url);
      assert.equal(extractor.domain, URL.parse(url).hostname);
    });

    it('returns the content', async () => {
      // To pass this test, fill out the content selector
      // in ./src/extractors/custom/arstechnica.com/index.js.
      // You may also want to make use of the clean and transform
      // options.
      const { content } = await result;

      const $ = cheerio.load(content || '');

      const h2 = $('h2');
      assert.equal(h2.length, 1);
    });
  });
});