69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
/* eslint-env jest */
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import { sandbox } from './helpers'
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jest.setTimeout(1000 * 60 * 5)
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// https://github.com/zeit/next.js/issues/12422
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test('styled-components hydration mismatch', async () => {
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const files = new Map()
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files.set(
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'pages/_document.js',
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`
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import Document from 'next/document'
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import { ServerStyleSheet } from 'styled-components'
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export default class MyDocument extends Document {
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static async getInitialProps(ctx) {
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const sheet = new ServerStyleSheet()
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const originalRenderPage = ctx.renderPage
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try {
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ctx.renderPage = () =>
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originalRenderPage({
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enhanceApp: App => props => sheet.collectStyles(<App {...props} />),
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})
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const initialProps = await Document.getInitialProps(ctx)
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return {
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...initialProps,
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styles: (
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<>
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{initialProps.styles}
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{sheet.getStyleElement()}
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</>
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),
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}
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} finally {
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sheet.seal()
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}
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}
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}
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`
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)
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const [session, cleanup] = await sandbox(undefined, files)
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// We start here.
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const didSsr = !(await session.patch(
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'index.js',
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`
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import React from 'react'
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import styled from 'styled-components'
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const Title = styled.h1\`
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color: red;
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font-size: 50px;
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\`
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export default () => <Title>My page</Title>
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`
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))
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// Verify loaded from server:
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expect(didSsr).toBe(true)
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// Verify no hydration mismatch:
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expect(await session.hasRedbox()).toBe(false)
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await cleanup()
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})
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