test(config): add intergration case for vercel#37755

test/integration/config-experimental-warning/test/index.test.js

@@ -44,13 +44,13 @@ describe('Config Experimental Warning', () => {
  module.exports = {
  target: 'server',
  experimental: {
- something: true
+ newNextLinkBehavior: true
  }
  }
  `)
  const { stderr } = await nextBuild(appDir, [], { stderr: true })
  expect(stderr).toMatch(
- 'You have enabled experimental feature (something) in next.config.js.'
+ 'You have enabled experimental feature (newNextLinkBehavior) in next.config.js.'
  )
  })
 
@@ -59,43 +59,104 @@ describe('Config Experimental Warning', () => {
  module.exports = (phase) => ({
  target: 'server',
  experimental: {
- something: true
+ newNextLinkBehavior: true
  }
  })
  `)
  const { stderr } = await nextBuild(appDir, [], { stderr: true })
  expect(stderr).toMatch(
- 'You have enabled experimental feature (something) in next.config.js.'
+ 'You have enabled experimental feature (newNextLinkBehavior) in next.config.js.'
+ )
+ })
+
+ it('should not show warning with default value', async () => {
+ configFile.write(`
+ module.exports = (phase) => ({
+ target: 'server',
+ experimental: {
+ newNextLinkBehavior: false
+ }
+ })
+ `)
+ const { stderr } = await nextBuild(appDir, [], { stderr: true })
+ expect(stderr).not.toMatch(
+ 'You have enabled experimental feature (newNextLinkBehavior) in next.config.js.'
  )
  })
 
  it('should show warning with config from object with experimental and multiple keys', async () => {
  configFile.write(`
  module.exports = {
  experimental: {
- something: true,
- another: 1,
+ newNextLinkBehavior: true,
+ legacyBrowsers: false,
  }
  }
  `)
  const { stderr } = await nextBuild(appDir, [], { stderr: true })
  expect(stderr).toMatch(
- 'You have enabled experimental features (something, another) in next.config.js.'
+ 'You have enabled experimental features (newNextLinkBehavior, legacyBrowsers) in next.config.js.'
  )
  })
 
  it('should show warning with next.config.mjs from object with experimental', async () => {
  configFileMjs.write(`
  const config = {
  experimental: {
- something: true,
+ newNextLinkBehavior: true,
  }
  }
  export default config
  `)
  const { stderr } = await nextBuild(appDir, [], { stderr: true })
  expect(stderr).toMatch(
- 'You have enabled experimental feature (something) in next.config.mjs.'
+ 'You have enabled experimental feature (newNextLinkBehavior) in next.config.mjs.'
+ )
+ })
+
+ it('should show warning with next.config.js from object with non-exist experimental', async () => {
+ configFile.write(`
+ const config = {
+ experimental: {
+ foo: true
+ }
+ }
+ module.exports = config
+ `)
+ const { stderr } = await nextBuild(appDir, [], { stderr: true })
+ expect(stderr).toMatch(
+ 'You have defined experimental feature (foo) in next.config.js that does not exists in this version'
+ )
+ })
+
+ it('should show warning with next.config.mjs from object with non-exist experimental', async () => {
+ configFileMjs.write(`
+ const config = {
+ experimental: {
+ foo: true
+ }
+ }
+ export default config
+ `)
+ const { stderr } = await nextBuild(appDir, [], { stderr: true })
+ expect(stderr).toMatch(
+ 'You have defined experimental feature (foo) in next.config.mjs that does not exists in this version'
+ )
+ })
+
+ it('should show warning with next.config.js from object with multiple non-exist experimental', async () => {
+ configFile.write(`
+ const config = {
+ experimental: {
+ foo: true,
+ bar: false
+ }
+ }
+ module.exports = config
+ `)
+ const { stderr } = await nextBuild(appDir, [], { stderr: true })
+ expect(stderr).toMatch(
+ 'You have defined experimental features (foo, bar) in next.config.js that do not exist in this version'
  )
  })
 })