282 lines
7.3 KiB
JavaScript
282 lines
7.3 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/vercel/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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// https://github.com/vercel/next.js/issues/13978
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test('can fast refresh a page with getStaticProps', async () => {
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const [session, cleanup] = await sandbox()
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export function getStaticProps() {
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return { props: { } }
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}
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>{count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('0')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('1')
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>Count: {count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 1')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 2')
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await cleanup()
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})
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// https://github.com/vercel/next.js/issues/13978
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test('can fast refresh a page with getServerSideProps', async () => {
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const [session, cleanup] = await sandbox()
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export function getServerSideProps() {
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return { props: { } }
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}
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>{count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('0')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('1')
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>Count: {count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 1')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 2')
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await cleanup()
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})
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// https://github.com/vercel/next.js/issues/13978
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test('can fast refresh a page with config', async () => {
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const [session, cleanup] = await sandbox()
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export const config = {}
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>{count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('0')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('1')
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await session.patch(
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'pages/index.js',
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`
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import { useCallback, useState } from 'react'
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>Count: {count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 1')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 2')
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await cleanup()
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})
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// https://github.com/vercel/next.js/issues/11504
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test('shows an overlay for a server-side error', async () => {
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const [session, cleanup] = await sandbox()
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await session.patch(
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'pages/index.js',
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`export default function () { throw new Error('pre boom'); }`
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)
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const didNotReload = await session.patch(
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'pages/index.js',
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`export default function () { throw new Error('boom'); }`
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)
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expect(didNotReload).toBe(false)
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expect(await session.hasRedbox(true)).toBe(true)
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const source = await session.getRedboxSource()
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expect(source.split(/\r?\n/g).slice(2).join('\n')).toMatchInlineSnapshot(`
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"> 1 | export default function () { throw new Error('boom'); }
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| ^"
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`)
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await cleanup()
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})
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