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initDOM.js
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initDOM.js
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const fs = require('fs')
const http = require('http')
const jsdom = require('jsdom')
const path = require('path')
let getMarkup
let resourceLoader
if (process.env.E2E_FILE) {
const file = path.isAbsolute(process.env.E2E_FILE)
? process.env.E2E_FILE
: path.join(process.cwd(), process.env.E2E_FILE)
const markup = fs.readFileSync(file, 'utf8')
getMarkup = () => markup
resourceLoader = (resource, callback) => callback(
null,
fs.readFileSync(path.join(path.dirname(file), resource.url.pathname), 'utf8')
)
} else if (process.env.E2E_URL) {
getMarkup = () => new Promise(resolve => {
http.get(process.env.E2E_URL, (res) => {
let rawData = ''
res.on('data', chunk => rawData += chunk)
res.on('end', () => resolve(rawData))
})
})
resourceLoader = (resource, callback) => resource.defaultFetch(callback)
} else {
it.only('can run jsdom (at least one of "E2E_FILE" or "E2E_URL" environment variables must be provided)', () => {
expect(new Error('This isn\'t the error you are looking for.')).toBeUndefined()
})
}
export default feature => new Promise(async resolve => {
const markup = await getMarkup()
const host = process.env.E2E_URL || 'http://localhost:3000'
const doc = jsdom.jsdom(markup, {
features: {
FetchExternalResources: ['script', 'css'],
ProcessExternalResources: ['script'],
},
created: (_, win) => win.addEventListener('ReactFeatureDidMount', () => resolve(doc), true),
deferClose: true,
resourceLoader,
url: `${host}#${feature}`,
virtualConsole: jsdom.createVirtualConsole().sendTo(console),
})
doc.close()
})