rsnext/test/e2e/edge-compiler-module-exports-preference/index.test.ts

58 lines
1.6 KiB
TypeScript

import { createNext } from 'e2e-utils'
import { NextInstance } from 'test/lib/next-modes/base'
import { fetchViaHTTP } from 'next-test-utils'
describe('Edge compiler module exports preference', () => {
let next: NextInstance
beforeAll(async () => {
next = await createNext({
files: {
'pages/index.js': `
export default function Page() {
return <p>hello world</p>
}
`,
'middleware.js': `
import { NextResponse } from 'next/server';
import lib from 'my-lib';
export default (req) => {
return NextResponse.next({
headers: {
'x-imported': lib
}
})
}
`,
'my-lib/package.json': JSON.stringify({
name: 'my-lib',
version: '1.0.0',
main: 'index.js',
browser: 'browser.js',
}),
'my-lib/index.js': `module.exports = "Node.js"`,
'my-lib/browser.js': `module.exports = "Browser"`,
},
packageJson: {
scripts: {
setup: `cp -r ./my-lib ./node_modules`,
build: 'yarn setup && next build',
dev: 'yarn setup && next dev',
start: 'next start',
},
},
startCommand: (global as any).isNextDev ? 'yarn dev' : 'yarn start',
buildCommand: 'yarn build',
dependencies: {},
})
})
afterAll(() => next.destroy())
it('favors the browser export', async () => {
const response = await fetchViaHTTP(next.url, '/')
expect(Object.fromEntries(response.headers)).toMatchObject({
'x-imported': 'Browser',
})
})
})