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next.js/test/development/repeated-dev-edits/repeated-dev-edits.test.ts
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first commit
2026-03-10 19:37:31 +03:30

46 lines
1.3 KiB
TypeScript

import { nextTestSetup } from 'e2e-utils'
import fs from 'fs-extra'
import { waitForNoRedbox } from 'next-test-utils'
import path from 'path'
describe('repeated-dev-edits', () => {
const { next } = nextTestSetup({
files: __dirname,
})
// Recommended for tests that check HTML. Cheerio is a HTML parser that has a jQuery like API.
it('should not break the hydration ', async () => {
const browser = await next.browser('/')
expect(await browser.elementByCss('p').text()).toBe('version-1')
const pagePath = 'pages/index.tsx'
const pageContent = String(
await fs.readFile(path.join(__dirname, pagePath))
)
await next.patchFile(
pagePath,
pageContent.replaceAll('version-1', 'version-2')
)
await browser.waitForElementByCss('#version-2')
expect(await browser.elementByCss('p').text()).toBe('version-2')
// Verify no hydration mismatch:
await waitForNoRedbox(browser)
await next.patchFile(
pagePath,
pageContent.replaceAll('version-1', 'version-3')
)
await browser.waitForElementByCss('#version-3')
expect(await browser.elementByCss('p').text()).toBe('version-3')
// Verify no hydration mismatch:
await waitForNoRedbox(browser)
await browser.refresh()
// Verify no hydration mismatch:
await waitForNoRedbox(browser)
})
})