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5.46 kB
| import { retry } from 'next-test-utils' | |
| import { nextTestSetup } from 'e2e-utils' | |
| describe('Document and App - Rendering via HTTP', () => { | |
| const { next, isNextDev } = nextTestSetup({ | |
| files: __dirname, | |
| }) | |
| describe('_document', () => { | |
| it('should include required elements in rendered html', async () => { | |
| const $ = await next.render$('/') | |
| // It has a custom html class | |
| expect($('html').hasClass('test-html-props')).toBe(true) | |
| // It has a custom body class | |
| expect($('body').hasClass('custom_class')).toBe(true) | |
| // It injects custom head tags | |
| expect($('head').text()).toMatch('body { margin: 0 }') | |
| // It has __NEXT_DATA__ script tag | |
| expect($('script#__NEXT_DATA__')).toBeTruthy() | |
| // It passes props from Document.getInitialProps to Document | |
| expect($('#custom-property').text()).toBe('Hello Document') | |
| }) | |
| it('Document.getInitialProps returns html prop representing app shell', async () => { | |
| // Extract css-in-js-class from the rendered HTML, which is returned by Document.getInitialProps | |
| const $index = await next.render$('/') | |
| const $about = await next.render$('/about') | |
| expect($index('#css-in-cjs-count').text()).toBe('2') | |
| expect($about('#css-in-cjs-count').text()).toBe('0') | |
| }) | |
| it('adds nonces to all scripts and preload links', async () => { | |
| const $ = await next.render$('/') | |
| const nonce = 'test-nonce' | |
| let noncesAdded = true | |
| $('script, link[rel=preload]').each((index, element) => { | |
| if ($(element).attr('nonce') !== nonce) noncesAdded = false | |
| }) | |
| expect(noncesAdded).toBe(true) | |
| }) | |
| it('adds crossOrigin to all scripts and preload links', async () => { | |
| const $ = await next.render$('/') | |
| const crossOrigin = 'anonymous' | |
| $('script, link[rel=preload]').each((index, element) => { | |
| expect($(element).attr('crossorigin') === crossOrigin).toBeTruthy() | |
| }) | |
| }) | |
| it('renders ctx.renderPage with enhancer correctly', async () => { | |
| const $ = await next.render$('/?withEnhancer=true') | |
| const nonce = 'RENDERED' | |
| expect($('#render-page-enhance-component').text().includes(nonce)).toBe( | |
| true | |
| ) | |
| }) | |
| it('renders ctx.renderPage with enhanceComponent correctly', async () => { | |
| const $ = await next.render$('/?withEnhanceComponent=true') | |
| const nonce = 'RENDERED' | |
| expect($('#render-page-enhance-component').text().includes(nonce)).toBe( | |
| true | |
| ) | |
| }) | |
| it('renders ctx.renderPage with enhanceApp correctly', async () => { | |
| const $ = await next.render$('/?withEnhanceApp=true') | |
| const nonce = 'RENDERED' | |
| expect($('#render-page-enhance-app').text().includes(nonce)).toBe(true) | |
| }) | |
| it('renders ctx.renderPage with enhanceApp and enhanceComponent correctly', async () => { | |
| const $ = await next.render$( | |
| '/?withEnhanceComponent=true&withEnhanceApp=true' | |
| ) | |
| const nonce = 'RENDERED' | |
| expect($('#render-page-enhance-app').text().includes(nonce)).toBe(true) | |
| expect($('#render-page-enhance-component').text().includes(nonce)).toBe( | |
| true | |
| ) | |
| }) | |
| if (isNextDev) { | |
| // This is a workaround to fix https://github.com/vercel/next.js/issues/5860 | |
| // TODO: remove this workaround when https://bugs.webkit.org/show_bug.cgi?id=187726 is fixed. | |
| it('adds a timestamp to link tags with preload attribute to invalidate the cache in dev', async () => { | |
| const $ = await next.render$('/', undefined, { | |
| headers: { 'user-agent': 'Safari' }, | |
| }) | |
| $('link[rel=preload]').each((index, element) => { | |
| const href = $(element).attr('href') | |
| expect(href.match(/\?/g)).toHaveLength(1) | |
| expect(href).toMatch(/\?ts=/) | |
| }) | |
| $('script[src]').each((index, element) => { | |
| const src = $(element).attr('src') | |
| expect(src.match(/\?/g)).toHaveLength(1) | |
| expect(src).toMatch(/\?ts=/) | |
| }) | |
| }) | |
| } | |
| }) | |
| describe('_app', () => { | |
| it('shows a custom tag', async () => { | |
| const $ = await next.render$('/') | |
| expect($('#hello-app').text()).toBe('Hello App') | |
| }) | |
| // For example react context uses shared module state | |
| // Also known as singleton modules | |
| it('should share module state with pages', async () => { | |
| const $ = await next.render$('/shared') | |
| expect($('#currentstate').text()).toBe('UPDATED') | |
| }) | |
| if (isNextDev) { | |
| it('should show valid error when thrown in _app getInitialProps', async () => { | |
| const errMsg = 'have an error from _app getInitialProps' | |
| const origContent = await next.readFile('pages/_app.js') | |
| expect(await next.render('/')).toContain('page-index') | |
| await next.patchFile( | |
| 'pages/_app.js', | |
| origContent.replace( | |
| '// throw _app GIP err here', | |
| `throw new Error("${errMsg}")` | |
| ) | |
| ) | |
| let foundErr = false | |
| try { | |
| await retry(async () => | |
| expect(await next.render('/')).toContain(errMsg) | |
| ) | |
| foundErr = true | |
| } finally { | |
| await next.patchFile('pages/_app.js', origContent) | |
| // Make sure _app is restored | |
| await retry(async () => | |
| expect(await next.render('/')).toContain('page-index') | |
| ) | |
| expect(foundErr).toBeTruthy() | |
| } | |
| }) | |
| } | |
| }) | |
| }) | |