/
inline.test.js
81 lines (73 loc) · 2.25 KB
/
inline.test.js
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import {
stripDataReactRoot,
disableBrowserEnvTemporarily,
safeQuerySelector
} from 'test-utils'
import {
getComponents,
getInjectedRules,
createBigComponent,
getCssFromChunks,
setHtml
} from '../../../server/test/util'
let React
let renderToString
let render
let emotion
let emotionServer
let reactEmotion
const resetAllModules = () => {
jest.resetModules()
React = require('react')
renderToString = require('react-dom/server').renderToString
render = require('@testing-library/react/pure').render
emotion = require('./emotion-instance')
emotionServer = require('./emotion-instance')
reactEmotion = require('./emotion-instance')
}
describe('renderStylesToString', () => {
test('renders styles with ids', async () => {
await disableBrowserEnvTemporarily(() => {
resetAllModules()
const { Page1, Page2 } = getComponents(emotion, reactEmotion)
expect(
emotionServer.renderStylesToString(renderToString(<Page1 />))
).toMatchSnapshot()
expect(
emotionServer.renderStylesToString(renderToString(<Page2 />))
).toMatchSnapshot()
})
})
test('renders large recursive component', async () => {
await disableBrowserEnvTemporarily(() => {
resetAllModules()
const BigComponent = createBigComponent(emotion)
expect(
stripDataReactRoot(
emotionServer.renderStylesToString(
renderToString(<BigComponent count={200} />)
)
)
).toMatchSnapshot()
})
})
})
describe('hydration', () => {
test('only inserts rules that are not in the critical css', async () => {
const appHtml = await disableBrowserEnvTemporarily(() => {
resetAllModules()
const { Page1 } = getComponents(emotion, reactEmotion)
return emotionServer.renderStylesToString(renderToString(<Page1 />))
})
expect(appHtml).toMatchSnapshot()
document.body.innerHTML = `<div id="root">${appHtml}</div>`
resetAllModules()
expect(emotion.cache.registered).toEqual({})
const { Page1: NewPage1 } = getComponents(emotion, reactEmotion)
render(<NewPage1 />, {
container: safeQuerySelector('#root')
})
expect(getInjectedRules()).toMatchSnapshot()
expect(getCssFromChunks(emotion, document)).toMatchSnapshot()
})
})