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Upgrade with-jest-typescript example to next 6.0.0 (#4543)
Hello! I ran into an issue using typescript and jest with next 6.0.0. I was able to work through fixing it and I wanted to share my solution back to next.js, by upgrading the with-jest-typescript example to next 6.0.0. The steps I followed were: 1. `npx babel-upgrade --write` which added babel-core@^7.0.0-bridge.0 to allow jest's babel 6 to play nice with next's babel 7 2. Remove `ts-jest` and replace with `babel-jest` to use babel to transform the typescript code, as is done when the dev and production builds run 3. Update the babelrc to use commonjs modules in test mode to be compatible with jest Also, I removed the `NODE_ENV=test` on the jest task, because jest sets the env to test anyways, and I'm on windows where this code is incorrect. The other option is to use `cross-env` but I felt it was simpler to just remove the environment override. To my knowledge, this PR would help on the following issues: #3663 #4227 #4531 #4528 #4239
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@ -1,6 +1,29 @@
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{
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{
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"presets": [
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"env": {
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"next/babel",
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"development": {
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"@zeit/next-typescript/babel"
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"presets": [
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]
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"next/babel",
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}
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"@zeit/next-typescript/babel"
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]
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},
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"production": {
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"presets": [
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"next/babel",
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"@zeit/next-typescript/babel"
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]
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},
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"test": {
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"presets": [
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[
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"next/babel",
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{
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"preset-env": {
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"modules": "commonjs"
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}
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}
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],
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"@zeit/next-typescript/babel"
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]
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}
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}
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}
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@ -2,14 +2,9 @@ const TEST_REGEX = '(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|js?|tsx?|ts?)$'
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module.exports = {
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module.exports = {
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setupFiles: ['<rootDir>/jest.setup.js'],
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setupFiles: ['<rootDir>/jest.setup.js'],
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globals: {
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'ts-jest': {
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'useBabelrc': true
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}
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},
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testRegex: TEST_REGEX,
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testRegex: TEST_REGEX,
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transform: {
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transform: {
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'^.+\\.tsx?$': 'ts-jest'
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'^.+\\.tsx?$': 'babel-jest'
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},
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},
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testPathIgnorePatterns: [
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testPathIgnorePatterns: [
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'<rootDir>/.next/', '<rootDir>/node_modules/'
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'<rootDir>/.next/', '<rootDir>/node_modules/'
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@ -2,28 +2,29 @@
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"name": "with-jest-typescript",
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"name": "with-jest-typescript",
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"version": "1.0.0",
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"version": "1.0.0",
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"scripts": {
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"scripts": {
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"test": "NODE_ENV=test jest",
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"test": "jest",
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"dev": "next",
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"dev": "next",
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"build": "next build",
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"build": "next build",
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"start": "next start"
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"start": "next start"
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},
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},
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"dependencies": {
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"dependencies": {
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"next": "^5.0.0",
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"next": "^6.0.0",
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"react": "^16.2.0",
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"react": "^16.2.0",
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"react-dom": "^16.2.0"
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"react-dom": "^16.2.0"
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},
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},
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"devDependencies": {
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"devDependencies": {
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"@types/jest": "^22.2.2",
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"@types/jest": "^23.0.0",
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"@types/next": "^2.4.8",
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"@types/next": "^2.4.8",
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"@types/react": "^16.0.41",
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"@types/react": "^16.0.41",
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"@types/react-dom": "^16.0.4",
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"@types/react-dom": "^16.0.4",
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"@zeit/next-typescript": "1.0.1",
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"@zeit/next-typescript": "1.0.1",
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"babel-core": "^7.0.0-bridge.0",
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"babel-jest": "23.0.1",
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"enzyme": "^3.3.0",
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"enzyme": "^3.3.0",
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"enzyme-adapter-react-16": "^1.1.1",
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"enzyme-adapter-react-16": "^1.1.1",
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"jest": "^22.4.3",
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"jest": "^23.1.0",
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"react-addons-test-utils": "^15.6.2",
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"react-addons-test-utils": "^15.6.2",
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"react-test-renderer": "^16.2.0",
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"react-test-renderer": "^16.2.0",
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"ts-jest": "^22.4.2",
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"typescript": "^2.7.2"
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"typescript": "^2.7.2"
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}
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}
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}
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}
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