| import crypto from 'crypto' |
| import { NextInstance, nextTestSetup } from 'e2e-utils' |
|
|
| type Md5Hash = string & { __brand: 'Md5Hash' } |
|
|
| type Record = [filePath: string, hash: string, content: string] |
|
|
| interface RouteFileHashRecords { |
| [key: string]: Record[] |
| } |
|
|
| function generateMD5(text: string): Md5Hash { |
| const hash = crypto.createHash('md5') |
| hash.update(text) |
| return hash.digest('hex') as Md5Hash |
| } |
|
|
| function getNodeFileHashes(next: NextInstance): RouteFileHashRecords { |
| const nodeBuildFileMd5Hashes: RouteFileHashRecords = {} |
| for (const file of nodeFilePaths) { |
| const content = next.readFileSync(`.next/server/${file}.js`) |
| const md5 = generateMD5(content) |
| nodeBuildFileMd5Hashes[file] = [[file, md5, content]] |
| } |
|
|
| return nodeBuildFileMd5Hashes |
| } |
|
|
| const nodeFilePaths = [ |
| 'app/app-page/page', |
| 'app/app-route/route', |
| 'pages/api/pages-api', |
| 'pages/pages-page', |
| ] |
|
|
| function getEdgeRouteFileHashes(next: NextInstance): RouteFileHashRecords { |
| const manifest: any = JSON.parse( |
| next.readFileSync('.next/server/middleware-manifest.json') |
| ) |
| const routeKeys = Object.keys(manifest.functions) |
| const hashMap: RouteFileHashRecords = {} |
| for (const route of routeKeys) { |
| const files: string[] = manifest.functions[route].files |
|
|
| const hashes: Record[] = [] |
| for (const filePath of files) { |
| const content = next.readFileSync(`.next/${filePath}`) |
| hashes.push([filePath, generateMD5(content), content]) |
| } |
| hashMap[route] = hashes |
| } |
| return hashMap |
| } |
|
|
| interface Runs { |
| run1: RouteFileHashRecords |
| run2: RouteFileHashRecords |
| } |
|
|
| describe('deterministic build', () => { |
| const { next } = nextTestSetup({ |
| files: __dirname, |
| skipStart: true, |
| }) |
|
|
| const edgeBuildFileMd5Hashes: Runs = { |
| run1: {}, |
| run2: {}, |
| } |
|
|
| const nodeBuildFileMd5Hashes: Runs = { |
| run1: {}, |
| run2: {}, |
| } |
|
|
| beforeAll(async () => { |
| |
| await next.build() |
| edgeBuildFileMd5Hashes.run1 = getEdgeRouteFileHashes(next) |
| nodeBuildFileMd5Hashes.run1 = getNodeFileHashes(next) |
|
|
| |
| await next.build() |
| edgeBuildFileMd5Hashes.run2 = getEdgeRouteFileHashes(next) |
| nodeBuildFileMd5Hashes.run2 = getNodeFileHashes(next) |
| }) |
|
|
| it('should have same md5 file across build', async () => { |
| expect(edgeBuildFileMd5Hashes.run1).toEqual(edgeBuildFileMd5Hashes.run2) |
| expect(nodeBuildFileMd5Hashes.run1).toEqual(nodeBuildFileMd5Hashes.run2) |
| }) |
| }) |
|
|
