1
0
mirror of synced 2025-12-21 19:06:49 -05:00
Files
docs/tests/rendering/static-assets.js
2022-02-08 18:30:07 +00:00

67 lines
2.6 KiB
JavaScript

import fs from 'fs'
import path from 'path'
import { expect } from '@jest/globals'
import { SURROGATE_ENUMS } from '../../middleware/set-fastly-surrogate-key.js'
import { get } from '../helpers/supertest.js'
function getNextStaticAsset(directory) {
const root = path.join('.next', 'static', directory)
const files = fs.readdirSync(root)
if (!files.length) throw new Error(`Can't find any files in ${root}`)
return path.join(root, files[0])
}
function checkCachingHeaders(res, defaultSurrogateKey = false) {
expect(res.headers['set-cookie']).toBeUndefined()
expect(res.headers['cache-control']).toContain('public')
const maxAgeSeconds = parseInt(res.header['cache-control'].match(/max-age=(\d+)/)[1], 10)
// Let's not be too specific in the tests, just as long as it's testing
// that it's a reasonably large number of seconds.
expect(maxAgeSeconds).toBeGreaterThanOrEqual(60 * 60)
// Because it doesn't have have a unique URL
expect(res.headers['surrogate-key']).toBe(
defaultSurrogateKey ? SURROGATE_ENUMS.DEFAULT : SURROGATE_ENUMS.MANUAL
)
}
describe('static assets', () => {
it('should serve /assets/cb-* with optimal headers', async () => {
const res = await get('/assets/cb-1234/images/site/logo.png')
expect(res.statusCode).toBe(200)
checkCachingHeaders(res)
})
it('should serve /assets/ with optimal headers', async () => {
const res = await get('/assets/images/site/logo.png')
expect(res.statusCode).toBe(200)
checkCachingHeaders(res, true)
})
it('should serve /_next/static/ with optimal headers', async () => {
// This picks the first one found. We just need it to be anything
// that actually resolves.
const filePath = getNextStaticAsset('css')
const asURL = '/' + filePath.replace('.next', '_next').split(path.sep).join('/')
const res = await get(asURL)
expect(res.statusCode).toBe(200)
checkCachingHeaders(res)
})
it('should 404 on /assets/cb-* with plain text', async () => {
const res = await get('/assets/cb-1234/never/heard/of.png')
expect(res.statusCode).toBe(404)
expect(res.header['content-type']).toContain('text/plain')
})
it('should 404 on /assets/ with plain text', async () => {
const res = await get('/assets/never/heard/of.png')
expect(res.statusCode).toBe(404)
expect(res.header['content-type']).toContain('text/plain')
})
it('should 404 on /_next/static/ with plain text', async () => {
const res = await get('/_next/static/never/heard/of.css')
expect(res.statusCode).toBe(404)
expect(res.header['content-type']).toContain('text/plain')
})
})