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import { join } from 'path'
import { nextTestSetup } from 'e2e-utils'
// Skipped in Turbopack, will be added later.
;(process.env.IS_TURBOPACK_TEST ? describe.skip : describe)(
'Skipped in Turbopack',
() => {
describe('optimizePackageImports - basic', () => {
const { next } = nextTestSetup({
env: {
NEXT_TEST_MODE: '1',
},
files: join(__dirname, 'fixture'),
dependencies: {
'lucide-react': '0.264.0',
'@headlessui/react': '1.7.17',
'@heroicons/react': '2.0.18',
'@visx/visx': '3.3.0',
'recursive-barrel': '1.0.0',
},
})
it('app - should render the icons correctly without creating all the modules', async () => {
let logs = ''
next.on('stdout', (log) => {
logs += log
})
const html = await next.render('/')
// Ensure the icons are rendered
expect(html).toContain('<svg xmlns="http://www.w3.org/2000/svg"')
const modules = [
...logs.matchAll(
/Compiled (\/[\w-]*)*\s*in \d+(\.\d+)?(s|ms) \((\d+) modules\)/g
),
]
expect(modules.length).toBeGreaterThanOrEqual(1)
for (const [, , , , moduleCount] of modules) {
// Ensure that the number of modules is less than 1500 - otherwise we're
// importing the entire library.
expect(parseInt(moduleCount)).toBeLessThan(1500)
}
})
it('pages - should render the icons correctly without creating all the modules', async () => {
let logs = ''
next.on('stdout', (log) => {
logs += log
})
const html = await next.render('/pages-route')
// Ensure the icons are rendered
expect(html).toContain('<svg xmlns="http://www.w3.org/2000/svg"')
const modules = [
...logs.matchAll(
/Compiled (\/[\w-]+)*\s*in \d+(\.\d+)?(s|ms) \((\d+) modules\)/g
),
]
expect(modules.length).toBeGreaterThanOrEqual(1)
for (const [, , , , moduleCount] of modules) {
// Ensure that the number of modules is less than 1500 - otherwise we're
// importing the entire library.
expect(parseInt(moduleCount)).toBeLessThan(1500)
}
})
it('app - should optimize recursive wildcard export mapping', async () => {
let logs = ''
next.on('stdout', (log) => {
logs += log
})
await next.render('/recursive-barrel-app')
const modules = [...logs.matchAll(/\((\d+) modules\)/g)]
expect(modules.length).toBeGreaterThanOrEqual(1)
for (const [, moduleCount] of modules) {
// Ensure that the number of modules is less than 1500 - otherwise we're
// importing the entire library.
expect(parseInt(moduleCount)).toBeLessThan(1500)
}
})
it('pages - should optimize recursive wildcard export mapping', async () => {
let logs = ''
next.on('stdout', (log) => {
logs += log
})
await next.render('/recursive-barrel')
const modules = [...logs.matchAll(/\((\d+) modules\)/g)]
expect(modules.length).toBeGreaterThanOrEqual(1)
for (const [, moduleCount] of modules) {
// Ensure that the number of modules is less than 1500 - otherwise we're
// importing the entire library.
expect(parseInt(moduleCount)).toBeLessThan(1500)
}
})
it('should handle recursive wildcard exports', async () => {
const html = await next.render('/recursive')
expect(html).toContain('<h1>42</h1>')
})
it('should support visx', async () => {
const html = await next.render('/visx')
expect(html).toContain('<linearGradient')
})
it('should not break "use client" directive in optimized packages', async () => {
const html = await next.render('/client')
expect(html).toContain('this is a client component')
})
it('should support "use client" directive in barrel file', async () => {
const html = await next.render('/client-boundary')
expect(html).toContain('<button>0</button>')
})
})
}
)
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