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b91e262 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | import { nextTestSetup } from 'e2e-utils'
import { pathExists, readdir } from 'fs-extra'
import { join } from 'path'
import { retry } from 'next-test-utils'
describe('CPU Profiling - next dev', () => {
const { next, isNextDev } = nextTestSetup({
files: __dirname,
startCommand: 'pnpm next dev --experimental-cpu-prof',
dependencies: {},
})
if (!isNextDev) {
it('skip for production mode', () => {})
return
}
it('should create CPU profile files on exit', async () => {
const profileDir = join(next.testDir, '.next', 'cpu-profiles')
// Make a request to ensure the server is running
const res = await next.fetch('/')
expect(res.status).toBe(200)
// Stop the server with SIGTERM to trigger profile save (SIGKILL doesn't allow cleanup)
await next.stop('SIGTERM')
// Retry until profile files are written
const cpuProfiles = await retry(async () => {
const profileDirExists = await pathExists(profileDir)
expect(profileDirExists).toBe(true)
const files = await readdir(profileDir)
const profiles = files.filter((f: string) => f.endsWith('.cpuprofile'))
expect(profiles.length).toBeGreaterThanOrEqual(1)
return profiles
})
// Verify profile names are meaningful
for (const profile of cpuProfiles) {
expect(profile).toMatch(
/^(dev-main|dev-server)-\d{4}-\d{2}-\d{2}T\d{2}-\d{2}-\d{2}\.cpuprofile$/
)
}
})
})
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