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index.spec.ts
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import os from 'os'
import path, { resolve } from 'path'
import process from 'process'
import type { NetlifyPluginOptions } from '@netlify/build/types'
import Chance from 'chance'
import { writeJSON, unlink, existsSync, readFileSync, ensureDir, readJson, pathExists, writeFile, move } from 'fs-extra'
import { join, relative } from 'pathe'
import { dir as getTmpDir } from 'tmp-promise'
// @ts-expect-error - TODO: Convert runtime export to ES6
// eslint-disable-next-line import/default
import nextRuntimeFactory from '../packages/runtime/src'
import { HANDLER_FUNCTION_NAME, ODB_FUNCTION_NAME, IMAGE_FUNCTION_NAME } from '../packages/runtime/src/constants'
import { watchForMiddlewareChanges } from '../packages/runtime/src/helpers/compiler'
import { getRequiredServerFiles, updateRequiredServerFiles } from '../packages/runtime/src/helpers/config'
import { getAllPageDependencies } from '../packages/runtime/src/templates/getPageResolver'
import { changeCwd, useFixture, moveNextDist } from './test-utils'
jest.mock('../packages/runtime/src/helpers/utils', () => ({
...jest.requireActual('../packages/runtime/src/helpers/utils'),
isNextAuthInstalled: jest.fn(),
}))
jest.mock('../packages/runtime/src/helpers/functionsMetaData', () => {
const { NEXT_PLUGIN_NAME } = require('../packages/runtime/src/constants')
return {
...jest.requireActual('../packages/runtime/src/helpers/functionsMetaData'),
getPluginVersion: async () => `${NEXT_PLUGIN_NAME}@1.0.0`,
}
})
const nextRuntime = nextRuntimeFactory({})
const chance = new Chance()
const constants = {
INTERNAL_FUNCTIONS_SRC: '.netlify/functions-internal',
PUBLISH_DIR: '.next',
FUNCTIONS_DIST: '.netlify/functions',
} as unknown as NetlifyPluginOptions['constants']
const utils = {
build: {
failBuild(message) {
throw new Error(message)
},
},
// eslint-disable-next-line no-void
run: async () => void 0,
cache: {
save: jest.fn(),
restore: jest.fn(),
},
} as unknown as NetlifyPluginOptions['utils']
const normalizeChunkNames = (source) => source.replaceAll(/\/chunks\/\d+\.js/g, '/chunks/CHUNK_ID.js')
const onBuildHasRun = (netlifyConfig) =>
Boolean(netlifyConfig.functions[HANDLER_FUNCTION_NAME]?.included_files?.some((file) => file.includes('BUILD_ID')))
const netlifyConfig = {
build: { command: 'npm run build' },
functions: {},
redirects: [],
headers: [],
} as NetlifyPluginOptions['netlifyConfig']
const defaultArgs = {
netlifyConfig,
utils,
constants,
} as NetlifyPluginOptions
let restoreCwd
let cleanup
// In each test, we change cwd to a temporary directory.
// This allows us not to have to mock filesystem operations.
beforeEach(async () => {
const tmpDir = await getTmpDir({ unsafeCleanup: true })
restoreCwd = changeCwd(tmpDir.path)
cleanup = tmpDir.cleanup
netlifyConfig.build.publish = path.resolve('.next')
netlifyConfig.build.environment = {}
netlifyConfig.redirects = []
netlifyConfig.headers = []
for (const func of Object.values(netlifyConfig.functions)) {
func.included_files = []
}
await useFixture('serverless_next_config')
})
afterEach(async () => {
jest.clearAllMocks()
jest.resetAllMocks()
// Cleans up the temporary directory from `getTmpDir()` and do not make it
// the current directory anymore
restoreCwd()
if (!process.env.TEST_SKIP_CLEANUP) {
await cleanup()
}
})
describe('preBuild()', () => {
it('fails if publishing the root of the project', async () => {
defaultArgs.netlifyConfig.build.publish = path.resolve('.')
await expect(nextRuntime.onPreBuild(defaultArgs)).rejects.toThrow(
/Your publish directory is pointing to the base directory of your site/,
)
})
it('fails if the build version is too old', async () => {
await expect(
nextRuntime.onPreBuild({
...defaultArgs,
constants: { IS_LOCAL: true, NETLIFY_BUILD_VERSION: '18.15.0' },
}),
).rejects.toThrow('This version of the Next Runtime requires netlify-cli')
})
it('passes if the build version is new enough', async () => {
await expect(
nextRuntime.onPreBuild({
...defaultArgs,
constants: { IS_LOCAL: true, NETLIFY_BUILD_VERSION: '18.16.1' },
}),
).resolves.not.toThrow()
})
it('restores cache with right paths', async () => {
await useFixture('dist_dir_next_config')
const restore = jest.fn()
await nextRuntime.onPreBuild({
...defaultArgs,
utils: { ...utils, cache: { restore } },
})
expect(restore).toHaveBeenCalledWith(path.resolve('.next/cache'))
})
it('forces the target to "server"', async () => {
const netlifyConfig = { ...defaultArgs.netlifyConfig }
await nextRuntime.onPreBuild({ ...defaultArgs, netlifyConfig })
expect(netlifyConfig.build.environment.NEXT_PRIVATE_TARGET).toBe('server')
})
})
describe('onBuild()', () => {
const { isNextAuthInstalled } = require('../packages/runtime/src/helpers/utils')
beforeEach(() => {
isNextAuthInstalled.mockImplementation(() => true)
})
afterEach(() => {
delete process.env.DEPLOY_PRIME_URL
delete process.env.URL
delete process.env.CONTEXT
})
it('does not set NEXTAUTH_URL if value is already set', async () => {
const mockUserDefinedSiteUrl = chance.url()
process.env.DEPLOY_PRIME_URL = chance.url()
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
initialConfig.config.env.NEXTAUTH_URL = mockUserDefinedSiteUrl
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(mockUserDefinedSiteUrl)
})
it("sets the NEXTAUTH_URL to the DEPLOY_PRIME_URL when CONTEXT env variable is not 'production'", async () => {
const mockUserDefinedSiteUrl = chance.url()
process.env.DEPLOY_PRIME_URL = mockUserDefinedSiteUrl
process.env.URL = chance.url()
// See https://docs.netlify.com/configure-builds/environment-variables/#build-metadata for all possible values
process.env.CONTEXT = 'deploy-preview'
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
initialConfig.config.env.NEXTAUTH_URL = mockUserDefinedSiteUrl
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(mockUserDefinedSiteUrl)
})
it("sets the NEXTAUTH_URL to the user defined site URL when CONTEXT env variable is 'production'", async () => {
const mockUserDefinedSiteUrl = chance.url()
process.env.DEPLOY_PRIME_URL = chance.url()
process.env.URL = mockUserDefinedSiteUrl
// See https://docs.netlify.com/configure-builds/environment-variables/#build-metadata for all possible values
process.env.CONTEXT = 'production'
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
initialConfig.config.env.NEXTAUTH_URL = mockUserDefinedSiteUrl
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(mockUserDefinedSiteUrl)
})
it('sets the NEXTAUTH_URL specified in the netlify.toml or in the Netlify UI', async () => {
const mockSiteUrl = chance.url()
process.env.NEXTAUTH_URL = mockSiteUrl
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(mockSiteUrl)
delete process.env.NEXTAUTH_URL
})
it('sets NEXTAUTH_URL when next-auth package is detected', async () => {
const mockSiteUrl = chance.url()
// Value represents the main address to the site and is either
// a Netlify subdomain or custom domain set by the user.
// See https://docs.netlify.com/configure-builds/environment-variables/#deploy-urls-and-metadata
process.env.DEPLOY_PRIME_URL = mockSiteUrl
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(mockSiteUrl)
})
it('includes the basePath on NEXTAUTH_URL when present', async () => {
const mockSiteUrl = chance.url()
process.env.DEPLOY_PRIME_URL = mockSiteUrl
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
initialConfig.config.basePath = '/foo'
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toEqual(`${mockSiteUrl}/foo`)
})
it('skips setting NEXTAUTH_URL when next-auth package is not found', async () => {
isNextAuthInstalled.mockImplementation(() => false)
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const config = await getRequiredServerFiles(netlifyConfig.build.publish)
expect(config.config.env.NEXTAUTH_URL).toBeUndefined()
})
it('runs onBuild', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
})
it('skips if NETLIFY_NEXT_PLUGIN_SKIP is set', async () => {
process.env.NETLIFY_NEXT_PLUGIN_SKIP = 'true'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(false)
delete process.env.NETLIFY_NEXT_PLUGIN_SKIP
})
it('skips if NEXT_PLUGIN_FORCE_RUN is "false"', async () => {
process.env.NEXT_PLUGIN_FORCE_RUN = 'false'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(false)
delete process.env.NEXT_PLUGIN_FORCE_RUN
})
it("fails if BUILD_ID doesn't exist", async () => {
await moveNextDist()
await unlink(path.join(process.cwd(), '.next/BUILD_ID'))
const failBuild = jest.fn().mockImplementation((err) => {
throw new Error(err)
})
await expect(() =>
nextRuntime.onBuild({ ...defaultArgs, utils: { ...utils, build: { failBuild } } }),
).rejects.toThrow(
`In most cases it should be set to ".next", unless you have chosen a custom "distDir" in your Next config.`,
)
expect(failBuild).toHaveBeenCalled()
})
it("fails with helpful warning if BUILD_ID doesn't exist and publish is 'out'", async () => {
await moveNextDist()
await unlink(path.join(process.cwd(), '.next/BUILD_ID'))
const failBuild = jest.fn().mockImplementation((err) => {
throw new Error(err)
})
netlifyConfig.build.publish = path.resolve('out')
await expect(() =>
nextRuntime.onBuild({ ...defaultArgs, utils: { ...utils, build: { failBuild } } }),
).rejects.toThrow(`Your publish directory is set to "out", but in most cases it should be ".next".`)
expect(failBuild).toHaveBeenCalled()
})
it('fails build if next export has run', async () => {
await moveNextDist()
await writeJSON(path.join(process.cwd(), '.next/export-detail.json'), {})
const failBuild = jest.fn()
await nextRuntime.onBuild({ ...defaultArgs, utils: { ...utils, build: { failBuild } } })
expect(failBuild).toHaveBeenCalled()
})
it('copy handlers to the internal functions directory', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(`.netlify/functions-internal/___netlify-handler/___netlify-handler.js`)).toBeTruthy()
expect(existsSync(`.netlify/functions-internal/___netlify-handler/bridge.js`)).toBeTruthy()
expect(existsSync(`.netlify/functions-internal/___netlify-handler/handlerUtils.js`)).toBeTruthy()
expect(existsSync(`.netlify/functions-internal/___netlify-odb-handler/___netlify-odb-handler.js`)).toBeTruthy()
expect(existsSync(`.netlify/functions-internal/___netlify-odb-handler/bridge.js`)).toBeTruthy()
expect(existsSync(`.netlify/functions-internal/___netlify-odb-handler/handlerUtils.js`)).toBeTruthy()
})
it('when splitting API routes is disabled, it writes correct redirects to netlifyConfig', async () => {
const oldProcessEnv = { ...process.env }
process.env.NEXT_SPLIT_API_ROUTES = 'false'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
// Not ideal, because it doesn't test precedence, but unfortunately the exact order seems to
// be non-deterministic, as it depends on filesystem globbing across platforms.
const sorted = [...netlifyConfig.redirects].sort((a, b) => a.from.localeCompare(b.from))
expect(sorted).toMatchSnapshot()
process.env = oldProcessEnv
})
it('publish dir is/has next dist', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.resolve('.next/BUILD_ID'))).toBeTruthy()
})
it('generates static files manifest', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const manifestPath = path.resolve('.next/static-manifest.json')
expect(existsSync(manifestPath)).toBeTruthy()
const data = (await readJson(manifestPath)).sort()
expect(data).toMatchSnapshot()
})
it('moves static files to root', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const data = JSON.parse(readFileSync(path.resolve('.next/static-manifest.json'), 'utf8'))
data.forEach(([_, file]) => {
expect(existsSync(path.resolve(path.join('.next', file)))).toBeTruthy()
expect(existsSync(path.resolve(path.join('.next', 'server', 'pages', file)))).toBeFalsy()
})
})
it('copies default locale files to top level', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const data = JSON.parse(readFileSync(path.resolve('.next/static-manifest.json'), 'utf8'))
const locale = 'en/'
data.forEach(([_, file]) => {
if (!file.startsWith(locale)) {
return
}
const trimmed = file.slice(locale.length)
expect(existsSync(path.resolve(path.join('.next', trimmed)))).toBeTruthy()
})
})
// TODO - TO BE MOVED TO TEST AGAINST A PROJECT WITH MIDDLEWARE IN ANOTHER PR
it.skip('skips static files that match middleware', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.resolve(path.join('.next', 'en', 'middle.html')))).toBeFalsy()
expect(existsSync(path.resolve(path.join('.next', 'server', 'pages', 'en', 'middle.html')))).toBeTruthy()
})
it('sets correct config', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const includes = [
'.env',
'.env.local',
'.env.production',
'.env.production.local',
'./public/locales/**',
'./next-i18next.config.js',
'.next/server/**',
'.next/serverless/**',
'.next/*.json',
'.next/BUILD_ID',
'.next/static/chunks/webpack-middleware*.js',
'!.next/server/**/*.js.nft.json',
'!.next/server/**/*.map',
'!**/node_modules/@next/swc*/**/*',
'!../../node_modules/next/dist/compiled/@ampproject/toolbox-optimizer/**/*',
`!node_modules/next/dist/server/lib/squoosh/**/*.wasm`,
`!node_modules/next/dist/next-server/server/lib/squoosh/**/*.wasm`,
'!node_modules/next/dist/compiled/webpack/bundle4.js',
'!node_modules/next/dist/compiled/webpack/bundle5.js',
'/home/runner/work/next-runtime/next-runtime/node_modules/styled-jsx/style.js',
'!node_modules/sharp/**/*',
]
// Relative paths in Windows are different
if (os.platform() !== 'win32') {
expect(netlifyConfig.functions[HANDLER_FUNCTION_NAME].included_files).toEqual(includes)
expect(netlifyConfig.functions[ODB_FUNCTION_NAME].included_files).toEqual(includes)
}
expect(netlifyConfig.functions[HANDLER_FUNCTION_NAME].node_bundler).toEqual('nft')
expect(netlifyConfig.functions[ODB_FUNCTION_NAME].node_bundler).toEqual('nft')
})
const excludesSharp = (includedFiles) => includedFiles.some((file) => file.startsWith('!') && file.includes('sharp'))
it("doesn't exclude sharp if manually included", async () => {
await moveNextDist()
const functions = [HANDLER_FUNCTION_NAME, ODB_FUNCTION_NAME]
await nextRuntime.onBuild(defaultArgs)
// Should exclude by default
for (const func of functions) {
expect(excludesSharp(netlifyConfig.functions[func].included_files)).toBeTruthy()
}
// ...but if the user has added it, we shouldn't exclude it
for (const func of functions) {
netlifyConfig.functions[func].included_files = ['node_modules/sharp/**/*']
}
await nextRuntime.onBuild(defaultArgs)
for (const func of functions) {
expect(excludesSharp(netlifyConfig.functions[func].included_files)).toBeFalsy()
}
// ...even if it's in a subdirectory
for (const func of functions) {
netlifyConfig.functions[func].included_files = ['subdirectory/node_modules/sharp/**/*']
}
await nextRuntime.onBuild(defaultArgs)
for (const func of functions) {
expect(excludesSharp(netlifyConfig.functions[func].included_files)).toBeFalsy()
}
})
it('generates a file referencing all API route sources', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
for (const route of ['_api_hello-background-background', '_api_hello-scheduled-handler']) {
const expected = path.resolve(constants.INTERNAL_FUNCTIONS_SRC, route, 'pages.js')
expect(existsSync(expected)).toBeTruthy()
expect(normalizeChunkNames(readFileSync(expected, 'utf8'))).toMatchSnapshot(`for ${route}`)
}
})
it('generates a file referencing all page sources', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const handlerPagesFile = path.join(constants.INTERNAL_FUNCTIONS_SRC, HANDLER_FUNCTION_NAME, 'pages.js')
const odbHandlerPagesFile = path.join(constants.INTERNAL_FUNCTIONS_SRC, ODB_FUNCTION_NAME, 'pages.js')
expect(existsSync(handlerPagesFile)).toBeTruthy()
expect(existsSync(odbHandlerPagesFile)).toBeTruthy()
expect(normalizeChunkNames(readFileSync(handlerPagesFile, 'utf8'))).toMatchSnapshot()
expect(normalizeChunkNames(readFileSync(odbHandlerPagesFile, 'utf8'))).toMatchSnapshot()
})
it('generates a file referencing all when publish dir is a subdirectory', async () => {
const dir = 'web/.next'
await moveNextDist(dir)
netlifyConfig.build.publish = path.resolve(dir)
const config = {
...defaultArgs,
netlifyConfig,
constants: { ...constants, PUBLISH_DIR: dir },
}
await nextRuntime.onBuild(config)
const handlerPagesFile = path.join(constants.INTERNAL_FUNCTIONS_SRC, HANDLER_FUNCTION_NAME, 'pages.js')
const odbHandlerPagesFile = path.join(constants.INTERNAL_FUNCTIONS_SRC, ODB_FUNCTION_NAME, 'pages.js')
expect(normalizeChunkNames(readFileSync(handlerPagesFile, 'utf8'))).toMatchSnapshot()
expect(normalizeChunkNames(readFileSync(odbHandlerPagesFile, 'utf8'))).toMatchSnapshot()
})
it('generates entrypoints with correct references', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const handlerFile = path.join(
constants.INTERNAL_FUNCTIONS_SRC,
HANDLER_FUNCTION_NAME,
`${HANDLER_FUNCTION_NAME}.js`,
)
const odbHandlerFile = path.join(constants.INTERNAL_FUNCTIONS_SRC, ODB_FUNCTION_NAME, `${ODB_FUNCTION_NAME}.js`)
expect(existsSync(handlerFile)).toBeTruthy()
expect(existsSync(odbHandlerFile)).toBeTruthy()
expect(readFileSync(handlerFile, 'utf8')).toMatch(
`({ conf: config, app: "../../..", pageRoot, NextServer, staticManifest, mode: 'ssr' })`,
)
expect(readFileSync(odbHandlerFile, 'utf8')).toMatch(
`({ conf: config, app: "../../..", pageRoot, NextServer, staticManifest, mode: 'odb' })`,
)
expect(readFileSync(handlerFile, 'utf8')).toMatch(`require("../../../.next/required-server-files.json")`)
expect(readFileSync(odbHandlerFile, 'utf8')).toMatch(`require("../../../.next/required-server-files.json")`)
})
it('handles empty routesManifest.staticRoutes', async () => {
await moveNextDist()
const manifestPath = path.resolve('.next/routes-manifest.json')
const routesManifest = await readJson(manifestPath)
delete routesManifest.staticRoutes
await writeJSON(manifestPath, routesManifest)
// The function is supposed to return undefined, but we want to check if it throws
expect(await nextRuntime.onBuild(defaultArgs)).toBeUndefined()
})
it('generates imageconfig file with entries for domains, remotePatterns, and custom response headers', async () => {
await moveNextDist()
const mockHeaderValue = chance.string()
const updatedArgs = {
...defaultArgs,
netlifyConfig: {
...defaultArgs.netlifyConfig,
headers: [
{
for: '/_next/image/',
values: {
'X-Foo': mockHeaderValue,
},
},
],
},
}
await nextRuntime.onBuild(updatedArgs)
const imageConfigPath = path.join(constants.INTERNAL_FUNCTIONS_SRC, IMAGE_FUNCTION_NAME, 'imageconfig.json')
const imageConfigJson = await readJson(imageConfigPath)
expect(imageConfigJson.domains.length).toBe(1)
expect(imageConfigJson.remotePatterns.length).toBe(1)
expect(imageConfigJson.responseHeaders).toStrictEqual({
'X-Foo': mockHeaderValue,
})
})
it('generates an ipx function by default', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'functions-internal', '_ipx', '_ipx.js'))).toBeTruthy()
})
// Enabled while edge images are off by default
it('does not generate an ipx edge function by default', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'ipx', 'index.ts'))).toBeFalsy()
})
it('generates an ipx edge function if force is set', async () => {
process.env.NEXT_FORCE_EDGE_IMAGES = '1'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'ipx', 'index.ts'))).toBeTruthy()
})
it('generates edge-functions manifest', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'manifest.json'))).toBeTruthy()
})
it('generates generator field within the edge-functions manifest', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const manifestPath = await readJson(path.resolve('.netlify/edge-functions/manifest.json'))
const manifest = manifestPath.functions
expect(manifest).toEqual(
expect.arrayContaining([
expect.objectContaining({
generator: '@netlify/[email protected]',
}),
]),
)
})
it('generates generator field within the edge-functions manifest includes IPX', async () => {
process.env.NEXT_FORCE_EDGE_IMAGES = '1'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const manifestPath = await readJson(path.resolve('.netlify/edge-functions/manifest.json'))
const manifest = manifestPath.functions
expect(manifest).toEqual(
expect.arrayContaining([
expect.objectContaining({
generator: '@netlify/[email protected]',
}),
]),
)
})
it('does not generate an ipx function when DISABLE_IPX is set', async () => {
process.env.DISABLE_IPX = '1'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'functions-internal', '_ipx', '_ipx.js'))).toBeFalsy()
delete process.env.DISABLE_IPX
})
it('creates 404 redirect when DISABLE_IPX is set', async () => {
process.env.DISABLE_IPX = '1'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const nextImageRedirect = netlifyConfig.redirects.find((redirect) => redirect.from.includes('/_next/image'))
expect(nextImageRedirect).toBeDefined()
expect(nextImageRedirect.to).toEqual('/404.html')
expect(nextImageRedirect.status).toEqual(404)
expect(nextImageRedirect.force).toEqual(true)
delete process.env.DISABLE_IPX
})
it('generates an ipx edge function by default', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'ipx', 'index.ts'))).toBeTruthy()
})
it('does not generate an ipx edge function if the feature is disabled', async () => {
process.env.NEXT_DISABLE_EDGE_IMAGES = '1'
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'ipx', 'index.ts'))).toBeFalsy()
delete process.env.NEXT_DISABLE_EDGE_IMAGES
})
it('does not generate an ipx edge function if Netlify Edge is disabled', async () => {
process.env.NEXT_DISABLE_NETLIFY_EDGE = '1'
await moveNextDist()
// We need to pretend there's no edge API routes, because otherwise it'll fail
// when we try to disable edge runtime.
const manifest = path.join('.next', 'server', 'middleware-manifest.json')
const manifestContent = await readJson(manifest)
manifestContent.functions = {}
await writeJSON(manifest, manifestContent)
await nextRuntime.onBuild(defaultArgs)
expect(existsSync(path.join('.netlify', 'edge-functions', 'ipx', 'index.ts'))).toBeFalsy()
delete process.env.NEXT_DISABLE_NETLIFY_EDGE
})
it('moves static files to a subdirectory if basePath is set', async () => {
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
initialConfig.config.basePath = '/docs'
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
expect(onBuildHasRun(netlifyConfig)).toBe(true)
const publicFile = path.join(netlifyConfig.build.publish, 'docs', 'shows1.json')
expect(existsSync(publicFile)).toBe(true)
expect(await readJson(publicFile)).toMatchObject(expect.any(Array))
})
it('does not split APIs when .nft.json files are unavailable', async () => {
await moveNextDist()
await unlink(path.join(process.cwd(), '.next', 'next-server.js.nft.json'))
await nextRuntime.onBuild(defaultArgs)
expect(netlifyConfig.functions['_api_*'].node_bundler).toEqual('nft')
})
describe('when splitting API routes is enabled', () => {
let oldProcessEnv
beforeEach(() => {
oldProcessEnv = { ...process.env }
process.env.NEXT_SPLIT_API_ROUTES = 'true'
})
afterEach(() => {
process.env = oldProcessEnv
})
it('provides displayname for split api routes', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
const functionsManifest = await readJson(
path.join('.netlify', 'functions-internal', '___netlify-api-handler', '___netlify-api-handler.json'),
)
expect(functionsManifest).toEqual({
config: {
generator: '@netlify/next-runtime@unknown',
name: 'Next.js API handler',
},
version: 1,
})
})
it('writes correct redirects to netlifyConfig', async () => {
await moveNextDist()
await nextRuntime.onBuild(defaultArgs)
// Not ideal, because it doesn't test precedence, but unfortunately the exact order seems to
// be non-deterministic, as it depends on filesystem globbing across platforms.
const sorted = [...netlifyConfig.redirects].sort((a, b) => a.from.localeCompare(b.from))
expect(sorted).toMatchSnapshot()
})
})
// eslint-disable-next-line jest/expect-expect
it('works when `relativeAppDir` is undefined', async () => {
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
delete initialConfig.relativeAppDir
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
})
// eslint-disable-next-line jest/expect-expect
it('works when `outputFileTracingRoot` is undefined', async () => {
await moveNextDist()
const initialConfig = await getRequiredServerFiles(netlifyConfig.build.publish)
delete initialConfig.config.experimental.outputFileTracingRoot
await updateRequiredServerFiles(netlifyConfig.build.publish, initialConfig)
await nextRuntime.onBuild(defaultArgs)
})
})
describe('onPostBuild', () => {
it('saves cache with right paths', async () => {
await moveNextDist()
const save = jest.fn()
await nextRuntime.onPostBuild({
...defaultArgs,
utils: { ...utils, cache: { save }, functions: { list: jest.fn().mockResolvedValue([]) } },
})
expect(save).toHaveBeenCalledWith(path.resolve('.next/cache'))
})
it('warns if old functions exist', async () => {
await moveNextDist()
const list = jest.fn().mockResolvedValue([
{
name: 'next_test',
mainFile: join(constants.INTERNAL_FUNCTIONS_SRC, 'next_test', 'next_test.js'),
runtime: 'js',
extension: '.js',
},
{
name: 'next_demo',
mainFile: join(constants.INTERNAL_FUNCTIONS_SRC, 'next_demo', 'next_demo.js'),
runtime: 'js',
extension: '.js',
},
])
const oldLog = console.log
const logMock = jest.fn()
console.log = logMock
await nextRuntime.onPostBuild({
...defaultArgs,
utils: { ...utils, cache: { save: jest.fn() }, functions: { list } },
})
expect(logMock).toHaveBeenCalledWith(
expect.stringContaining(
`We have found the following functions in your site that seem to be left over from the old Next.js plugin (v3). We have guessed this because the name starts with "next_".`,
),
)
console.log = oldLog
})
it('warns if NETLIFY_NEXT_PLUGIN_SKIP is set', async () => {
await moveNextDist()
process.env.NETLIFY_NEXT_PLUGIN_SKIP = 'true'
await moveNextDist()
const show = jest.fn()
await nextRuntime.onPostBuild({ ...defaultArgs, utils: { ...defaultArgs.utils, status: { show } } })
expect(show).toHaveBeenCalledWith({
summary: 'Next cache was stored, but all other functions were skipped because NETLIFY_NEXT_PLUGIN_SKIP is set',
title: 'Next Runtime did not run',
})
delete process.env.NETLIFY_NEXT_PLUGIN_SKIP
})
it('warns if NEXT_PLUGIN_FORCE_RUN is "false"', async () => {
await moveNextDist()
process.env.NEXT_PLUGIN_FORCE_RUN = 'false'
await moveNextDist()
const show = jest.fn()
await nextRuntime.onPostBuild({ ...defaultArgs, utils: { ...defaultArgs.utils, status: { show } } })
expect(show).toHaveBeenCalledWith({
summary:
'Next cache was stored, but all other functions were skipped because NEXT_PLUGIN_FORCE_RUN is set to false',
title: 'Next Runtime did not run',
})
delete process.env.NEXT_PLUGIN_FORCE_RUN
})
it('adds headers to Netlify configuration', async () => {
await moveNextDist()
const show = jest.fn()
await nextRuntime.onPostBuild({
...defaultArgs,
utils: { ...defaultArgs.utils, status: { show }, functions: { list: jest.fn().mockResolvedValue([]) } },
})
expect(netlifyConfig.headers).toEqual([
{
for: '/',
values: {
'x-custom-header': 'my custom header value',
},
},
{
for: '/en/',
values: {
'x-custom-header': 'my custom header value',
},
},
{
for: '/es/',
values: {
'x-custom-header': 'my custom header value',
},
},
{
for: '/fr/',
values: {
'x-custom-header': 'my custom header value',
},
},
{
for: '/api/*',
values: {
'x-custom-api-header': 'my custom api header value',
},
},
{
for: '/en/api/*',
values: {
'x-custom-api-header': 'my custom api header value',
},
},
{
for: '/es/api/*',
values: {
'x-custom-api-header': 'my custom api header value',
},
},
{
for: '/fr/api/*',
values: {
'x-custom-api-header': 'my custom api header value',
},
},
{
for: '/*',
values: {
'x-custom-header-for-everything': 'my custom header for everything value',
},
},
{
for: '/en/*',
values: {
'x-custom-header-for-everything': 'my custom header for everything value',
},
},
{
for: '/es/*',
values: {
'x-custom-header-for-everything': 'my custom header for everything value',
},
},
{
for: '/fr/*',
values: {
'x-custom-header-for-everything': 'my custom header for everything value',
},
},
])
})
it('appends headers to existing headers in the Netlify configuration', async () => {
await moveNextDist()
netlifyConfig.headers = [
{
for: '/',
values: {
'x-existing-header-in-configuration': 'existing header in configuration value',
},
},
]
const show = jest.fn()
await nextRuntime.onPostBuild({
...defaultArgs,
utils: { ...defaultArgs.utils, status: { show }, functions: { list: jest.fn().mockResolvedValue([]) } },
})
expect(netlifyConfig.headers).toEqual([
{
for: '/',