Files
vercel__next.js/test/development/basic/styled-components/styled-components.test.ts
Tim Neutkens e860cec656 test: migrate webdriver callers to next.browser (#93941)
### What?

Migrate remaining direct `next-webdriver` test callers that have a
`NextInstance` to `next.browser()`, and expose the shared `Playwright`
browser type from `e2e-utils`.

### Why?

`NextInstance.browser` should be the supported browser-opening interface
for test fixtures, with `next-webdriver` kept as the private
implementation detail.

### How?

Updated affected development, e2e, and production tests to call
`next.browser()` directly, passing `baseUrl` where tests intentionally
target a manually spawned or proxied server. Shared helpers now receive
browser callbacks from the test context, and browser types import
`Playwright` from `e2e-utils` instead of deriving from `next.browser` or
importing from private paths.

<!-- NEXT_JS_LLM_PR -->
2026-05-22 14:01:58 +02:00

85 lines
2.3 KiB
TypeScript

import { nextTestSetup } from 'e2e-utils'
import { fetchViaHTTP, renderViaHTTP } from 'next-test-utils'
describe('styled-components SWC transform', () => {
const { next } = nextTestSetup({
files: __dirname,
dependencies: {
'styled-components': '6.1.16',
},
})
async function matchLogs$(browser) {
let foundLog = false
const browserLogs = await browser.log()
browserLogs.forEach((log) => {
if (log.message.includes('Warning: Prop `%s` did not match.')) {
foundLog = true
}
})
return foundLog
}
it('should not have hydration mismatch with styled-components transform enabled', async () => {
let browser
try {
browser = await next.browser('/')
// Compile /_error
await fetchViaHTTP(next.url, '/404')
// Try 4 times to be sure there is no mismatch
expect(await matchLogs$(browser)).toBe(false)
await browser.refresh()
expect(await matchLogs$(browser)).toBe(false)
await browser.refresh()
expect(await matchLogs$(browser)).toBe(false)
await browser.refresh()
expect(await matchLogs$(browser)).toBe(false)
} finally {
if (browser) {
await browser.close()
}
}
})
it('should render the page with correct styles', async () => {
const browser = await next.browser('/')
expect(
await browser.eval(
`window.getComputedStyle(document.querySelector('#btn')).color`
)
).toBe('rgb(255, 255, 255)')
expect(
await browser.eval(
`window.getComputedStyle(document.querySelector('#wrap-div')).color`
)
).toBe('rgb(0, 0, 0)')
})
it('should enable the display name transform by default', async () => {
// make sure the index chunk gets generated
const html = await next.render('/')
expect(html).toContain('pages__Button')
})
it('should contain styles in initial HTML', async () => {
const html = await renderViaHTTP(next.url, '/')
expect(html).toContain('background:transparent')
expect(html).toContain('color:white')
})
it('should only render once on the server per request', async () => {
const outputs = []
next.on('stdout', (args) => {
outputs.push(args)
})
await renderViaHTTP(next.url, '/')
expect(
outputs.filter((output) => output.trim() === '__render__').length
).toBe(1)
})
})