import { createNext, FileRef } from 'e2e-utils' import { NextInstance } from 'e2e-utils' import { renderViaHTTP } from 'next-test-utils' import path from 'path' const appDir = path.join(__dirname, 'app') describe('next/jest', () => { let next: NextInstance beforeAll(async () => { next = await createNext({ files: { pages: new FileRef(path.join(appDir, 'pages')), 'tests/index.test.tsx': ` import { render, waitFor } from '@testing-library/react' import '@testing-library/jest-dom/extend-expect'; import Page from '@/pages' describe('testid', () => { it('data-testid should be available in the test', async () => { const { getByTestId } = render( ) expect(getByTestId('main-text')).toHaveTextContent('Hello World') }) }) `, 'jest.config.js': new FileRef(path.join(appDir, 'jest.config.js')), 'next.config.js': new FileRef(path.join(appDir, 'next.config.js')), 'tsconfig.json': new FileRef(path.join(appDir, 'tsconfig.json')), }, dependencies: { jest: '29.7.0', 'jest-environment-jsdom': '29.7.0', '@testing-library/react': '15.0.2', '@testing-library/jest-dom': '5.16.4', }, packageJson: { scripts: { // Runs jest and bails if jest fails build: 'jest --forceExit tests/index.test.tsx && next build', }, }, installCommand: 'pnpm i', buildCommand: `pnpm build`, }) }) afterAll(() => next.destroy()) it('data-testid should be removed in production', async () => { const html = await renderViaHTTP(next.url, '/') expect(html).not.toContain('data-testid') }) })