Files
next.js/test/development/basic/hmr/run-basic-hmr-test.util.ts
T
Jiwon ChoiandGitHub e8a84e866c test: split basic HMR test into multiple files (#79064)
Split long-running basic hmr test to parallelize and reduce CI time.

As @huozhi mentioned at https://github.com/vercel/next.js/pull/73613#pullrequestreview-2485717304, the tests won't be separated to `__test__` dir but flattened out on the same level as the fixture dirs.

Port of https://github.com/vercel/next.js/pull/73616, confirmed no new changes.

x-ref: https://github.com/vercel/next.js/commits/canary/test/development/basic/hmr/basic.test.ts
2025-05-12 21:20:39 +02:00

114 lines
3.3 KiB
TypeScript

import {
assertHasRedbox,
getBrowserBodyText,
retry,
waitFor,
} from 'next-test-utils'
import { createNext, nextTestSetup } from 'e2e-utils'
export function runBasicHmrTest(nextConfig: {
basePath: string
assetPrefix: string
}) {
const { next } = nextTestSetup({
files: __dirname,
nextConfig,
patchFileDelay: 500,
})
const { basePath } = nextConfig
it('should have correct router.isReady for auto-export page', async () => {
let browser = await next.browser(basePath + '/auto-export-is-ready')
expect(await browser.elementByCss('#ready').text()).toBe('yes')
expect(JSON.parse(await browser.elementByCss('#query').text())).toEqual({})
browser = await next.browser(basePath + '/auto-export-is-ready?hello=world')
await retry(async () => {
expect(await browser.elementByCss('#ready').text()).toBe('yes')
})
expect(JSON.parse(await browser.elementByCss('#query').text())).toEqual({
hello: 'world',
})
})
it('should have correct router.isReady for getStaticProps page', async () => {
let browser = await next.browser(basePath + '/gsp-is-ready')
expect(await browser.elementByCss('#ready').text()).toBe('yes')
expect(JSON.parse(await browser.elementByCss('#query').text())).toEqual({})
browser = await next.browser(basePath + '/gsp-is-ready?hello=world')
await retry(async () => {
expect(await browser.elementByCss('#ready').text()).toBe('yes')
})
expect(JSON.parse(await browser.elementByCss('#query').text())).toEqual({
hello: 'world',
})
})
it('should have correct compile timing after fixing error', async () => {
const pageName = 'pages/auto-export-is-ready.js'
const originalContent = await next.readFile(pageName)
try {
const browser = await next.browser(basePath + '/auto-export-is-ready')
const outputLength = next.cliOutput.length
await next.patchFile(
pageName,
`import hello from 'non-existent'\n` + originalContent
)
await assertHasRedbox(browser)
await waitFor(3000)
await next.patchFile(pageName, originalContent)
await retry(async () => {
expect(next.cliOutput.substring(outputLength)).toMatch(/Compiled.*?/i)
})
const compileTimeStr = next.cliOutput.substring(outputLength)
const matches = [
...compileTimeStr.match(/Compiled.*? in ([\d.]{1,})\s?(?:s|ms)/i),
]
const [, compileTime, timeUnit] = matches
let compileTimeMs = parseFloat(compileTime)
if (timeUnit === 's') {
compileTimeMs = compileTimeMs * 1000
}
expect(compileTimeMs).toBeLessThan(3000)
} finally {
await next.patchFile(pageName, originalContent)
}
})
it('should reload the page when the server restarts', async () => {
const browser = await next.browser(basePath + '/hmr/about')
await retry(async () => {
expect(await getBrowserBodyText(browser)).toMatch(
/This is the about page/
)
})
await next.destroy()
let reloadPromise = new Promise((resolve) => {
browser.on('request', (req) => {
if (req.url().endsWith('/hmr/about')) {
resolve(req.url())
}
})
})
const secondNext = await createNext({
files: __dirname,
nextConfig,
forcedPort: next.appPort,
})
await reloadPromise
await secondNext.destroy()
})
}