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Jest testing DOM in Node
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| const fetch = require('node-fetch'); | |
| async function getContent(url, originRequest) { | |
| console.log('Getting content from: ', url); | |
| const { redirectUrl } = originRequest.query; | |
| const { host, ...remainingHeaders } = originRequest.headers; | |
| return fetch(url, { | |
| method: originRequest.method, | |
| headers: { ...remainingHeaders}, | |
| rejectUnauthorized: false | |
| }) | |
| .then(res => res.text()); | |
| } | |
| module.exports = { | |
| getContent | |
| }; |
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| const fs = require('fs'); | |
| const path = require('path'); | |
| function getFileContent(filePath) { | |
| return fs.createReadStream(path.resolve(__dirname, filePath)); | |
| } | |
| module.exports = { | |
| getFileContent | |
| }; |
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| jest.mock('node-fetch'); | |
| const fetch = require('node-fetch'); | |
| const { JSDOM } = require('jsdom'); | |
| const { getContent } = require('./content'); | |
| const { getFileContent } = require('./debug'); | |
| const { Response } = jest.requireActual('node-fetch'); | |
| const mockURL = 'http://localhost:4000/sampe-article.html'; | |
| describe('Subdomain site: ', () => { | |
| it('should return article data', async () => { | |
| fetch.mockReturnValue(Promise.resolve(new Response(getFileContent('article.html')))); | |
| const content = await getContent(mockURL, { | |
| method: 'GET', | |
| headers: {}, | |
| }); | |
| const { document } = new JSDOM(content).window; | |
| expect(document.querySelectorAll('script').length).toEqual(1); | |
| expect(content).toContain('<!doctype html>'); | |
| }); | |
| }); |
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