import 'mocha' import { expect } from 'chai' import 'chai/register-should' import fs from 'fs' import { findNewsletterUrl, isProbablyNewsletter, parsePageMetadata, parsePreparedContent } from '../../src/utils/parser' import nock from 'nock' const load = (path: string): string => { return fs.readFileSync(path, 'utf8') } describe('isProbablyNewsletter', () => { it('returns true for substack newsletter', () => { const html = load('./test/utils/data/substack-forwarded-newsletter.html') isProbablyNewsletter(html).should.be.true }) it('returns true for private forwarded substack newsletter', () => { const html = load('./test/utils/data/substack-private-forwarded-newsletter.html') isProbablyNewsletter(html).should.be.true }) it('returns false for substack welcome email', () => { const html = load('./test/utils/data/substack-forwarded-welcome-email.html') isProbablyNewsletter(html).should.be.false }) it('returns true for beehiiv.com newsletter', () => { const html = load('./test/utils/data/beehiiv-newsletter.html') isProbablyNewsletter(html).should.be.true }) }) describe('findNewsletterUrl', async () => { it('gets the URL from the header if it is a substack newsletter', async () => { const html = load('./test/utils/data/substack-forwarded-newsletter.html') const url = await findNewsletterUrl(html) // Not sure if the redirects from substack expire, this test could eventually fail expect(url).to.startWith('https://newsletter.slowchinese.net/p/companies-that-eat-people-217') }) it('gets the URL from the header if it is a beehiiv newsletter', async () => { const html = load('./test/utils/data/beehiiv-newsletter.html') const url = await findNewsletterUrl(html) expect(url).to.startWith('https://www.milkroad.com/p/talked-guy-spent-30m-beeple') }) it('returns undefined if it is not a newsletter', async () => { const html = load('./test/utils/data/substack-forwarded-welcome-email.html') const url = await findNewsletterUrl(html) expect(url).to.be.undefined }) }) describe('parseMetadata', async () => { it('gets author, title, image, description', async () => { const html = load('./test/utils/data/substack-post.html') const metadata = await parsePageMetadata(html) expect(metadata?.author).to.deep.equal('Omnivore') expect(metadata?.title).to.deep.equal('Code Block Syntax Highlighting') expect(metadata?.previewImage).to.deep.equal('https://cdn.substack.com/image/fetch/w_1200,h_600,c_fill,f_jpg,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F2ab1f7e8-2ca7-4011-8ccb-43d0b3bd244f_1490x2020.png') expect(metadata?.description).to.deep.equal('Highlighted

 in Omnivore')
  })
})

describe('parsePreparedContent', async () => {
  it('gets published date when JSONLD fails to load', async () => {
    const html = load('./test/utils/data/stratechery-blog-post.html')
    const result = await parsePreparedContent(
      'https://example.com/',
      {
        document: html,
        pageInfo: { }
      },
    )
    expect(result.parsedContent?.publishedDate?.getTime()).to.equal(new Date('2016-04-05T15:27:51+00:00').getTime())
  })
})

describe('parsePreparedContent', async () => {
  nock('https://oembeddata').get('/').reply(200, {
    "version":"1.0",
    "provider_name":"Hippocratic Adventures",
    "provider_url":"https:\/\/www.hippocraticadventures.com",
    "title":"The Ultimate Guide to Practicing Medicine in Singapore – Part 2"
  })

  it('gets metadata from external JSONLD if available', async () => {
    const html = `
                    
                    
                    
                    body
                    `
                    const result = await parsePreparedContent(
                      'https://example.com/',
                      {
                        document: html,
                        pageInfo: { }
                      },
                    )
    expect(result.parsedContent?.title).to.equal('The Ultimate Guide to Practicing Medicine in Singapore – Part 2')
  })
})