fix: pass root in babel config

.yarnrc.yml

@@ -18,8 +18,6 @@ packageExtensions:
     peerDependencies:
       "@babel/preset-env": ^7.1.6
   react-native@*:
-    dependencies:
-      metro-babel-register: 0.67.0
     peerDependencies:
       "@babel/preset-env": ^7.1.6
 

CHANGELOG.md

@@ -59,6 +59,7 @@
 
 ### Fixes
 
+- `[babel-jest]` [**BREAKING**] Pass `rootDir` as `root` in Babel's options ([#12689](https://github.com/facebook/jest/pull/12689))
 - `[expect]` Move typings of `.not`, `.rejects` and `.resolves` modifiers outside of `Matchers` interface ([#12346](https://github.com/facebook/jest/pull/12346))
 - `[expect]` Throw useful error if `expect.extend` is called with invalid matchers ([#12488](https://github.com/facebook/jest/pull/12488))
 - `[expect]` Fix `iterableEquality` ignores other properties ([#8359](https://github.com/facebook/jest/pull/8359))

examples/react-native/jest.config.js

@@ -3,9 +3,6 @@ const {resolve} = require('path');
 module.exports = {
   preset: 'react-native',
   testEnvironment: 'jsdom',
-  transform: {
-    '\\.(js|ts|tsx)$': require.resolve('react-native/jest/preprocessor.js'),
-  },
   // this is specific to the Jest repo, not generally needed (the files we ignore will be in node_modules which is ignored by default)
   transformIgnorePatterns: [resolve(__dirname, '../../packages')],
 };

package.json

@@ -165,8 +165,7 @@
   "resolutions": {
     "babel-jest": "workspace:*",
     "jest": "workspace:*",
-    "jest-environment-node": "workspace:*",
-    "react-native": "patch:react-native@npm:0.68.1#.yarn/patches/react-native-npm-0.68.0-9eb3ecb60a.patch"
+    "jest-environment-node": "workspace:*"
   },
   "packageManager": "[email protected]"
 }

packages/babel-jest/src/index.ts

@@ -173,10 +173,11 @@ export const createTransformer: TransformerCreator<
     filename: string,
     transformOptions: JestTransformOptions,
   ): TransformOptions {
-    const {cwd} = transformOptions.config;
-    // `cwd` first to allow incoming options to override it
+    const {cwd, rootDir} = transformOptions.config;
+    // `cwd` and `root` first to allow incoming options to override it
     return {
       cwd,
+      root: rootDir,
       ...options,
       caller: {
         ...options.caller,

packages/jest-runtime/src/__mocks__/createRuntime.js

@@ -45,7 +45,13 @@ const setupTransform = (config, rootDir) => {
       path.resolve(rootDir, transform[regex]),
     ]);
   }
-  return [['^.+\\.[jt]sx?$', require.resolve('babel-jest')]];
+  return [
+    [
+      '^.+\\.[jt]sx?$',
+      require.resolve('babel-jest'),
+      {configFile: require.resolve('../../../../babel.config')},
+    ],
+  ];
 };
 
 module.exports = async function createRuntime(filename, projectConfig) {

yarn.lock

@@ -6812,13 +6812,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"babel-plugin-replace-ts-export-assignment@npm:^0.0.2":
-  version: 0.0.2
-  resolution: "babel-plugin-replace-ts-export-assignment@npm:0.0.2"
-  checksum: da749130fe0479cd9da73f8b3aafc62e05885b12732ce0e25976a7138dad1688a03366791b12633afdd8a702e2018ec01764c4ddb0ed0dbc3783b7e75b1b148a
-  languageName: node
-  linkType: hard
-
 "babel-plugin-syntax-trailing-function-commas@npm:^7.0.0-beta.0":
   version: 7.0.0-beta.0
   resolution: "babel-plugin-syntax-trailing-function-commas@npm:7.0.0-beta.0"
@@ -15033,24 +15026,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"metro-babel-register@npm:0.67.0":
-  version: 0.67.0
-  resolution: "metro-babel-register@npm:0.67.0"
-  dependencies:
-    "@babel/core": ^7.14.0
-    "@babel/plugin-proposal-nullish-coalescing-operator": ^7.0.0
-    "@babel/plugin-proposal-optional-chaining": ^7.0.0
-    "@babel/plugin-syntax-class-properties": ^7.0.0
-    "@babel/plugin-transform-flow-strip-types": ^7.0.0
-    "@babel/plugin-transform-modules-commonjs": ^7.0.0
-    "@babel/preset-typescript": ^7.15.0
-    "@babel/register": ^7.0.0
-    babel-plugin-replace-ts-export-assignment: ^0.0.2
-    escape-string-regexp: ^1.0.5
-  checksum: 4aabb6884db027326ca97e8c9f3943e9af9f455439fa7e361002e3c5b5c3600e9f4aae141018bebec7a242f6950f822945fd464fa6f14c134f893d6542afc081
-  languageName: node
-  linkType: hard
-
 "metro-babel-transformer@npm:0.67.0":
   version: 0.67.0
   resolution: "metro-babel-transformer@npm:0.67.0"
@@ -18627,50 +18602,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-native@patch:react-native@npm:0.68.1#.yarn/patches/react-native-npm-0.68.0-9eb3ecb60a.patch::locator=%40jest%2Fmonorepo%40workspace%3A.":
-  version: 0.68.1
-  resolution: "react-native@patch:react-native@npm%3A0.68.1#.yarn/patches/react-native-npm-0.68.0-9eb3ecb60a.patch::version=0.68.1&hash=c5a757&locator=%40jest%2Fmonorepo%40workspace%3A."
-  dependencies:
-    "@jest/create-cache-key-function": ^27.0.1
-    "@react-native-community/cli": ^7.0.3
-    "@react-native-community/cli-platform-android": ^7.0.1
-    "@react-native-community/cli-platform-ios": ^7.0.1
-    "@react-native/assets": 1.0.0
-    "@react-native/normalize-color": 2.0.0
-    "@react-native/polyfills": 2.0.0
-    abort-controller: ^3.0.0
-    anser: ^1.4.9
-    base64-js: ^1.1.2
-    deprecated-react-native-prop-types: ^2.3.0
-    event-target-shim: ^5.0.1
-    hermes-engine: ~0.11.0
-    invariant: ^2.2.4
-    jsc-android: ^250230.2.1
-    metro-react-native-babel-transformer: 0.67.0
-    metro-runtime: 0.67.0
-    metro-source-map: 0.67.0
-    nullthrows: ^1.1.1
-    pretty-format: ^26.5.2
-    promise: ^8.0.3
-    react-devtools-core: ^4.23.0
-    react-native-codegen: ^0.0.13
-    react-native-gradle-plugin: ^0.0.6
-    react-refresh: ^0.4.0
-    react-shallow-renderer: 16.14.1
-    regenerator-runtime: ^0.13.2
-    scheduler: ^0.20.2
-    stacktrace-parser: ^0.1.3
-    use-subscription: ">=1.0.0 <1.6.0"
-    whatwg-fetch: ^3.0.0
-    ws: ^6.1.4
-  peerDependencies:
-    react: 17.0.2
-  bin:
-    react-native: cli.js
-  checksum: a1d1ab50269a9b83eb2bcae2b5889cf657a48d9b42f1ea9bc05ae575fca10b1c34e226affbc792e336b2a4b1fc4299030ee7e6b9cdcc25e12990379b18d0bed6
-  languageName: node
-  linkType: hard
-
 "react-refresh@npm:^0.4.0":
   version: 0.4.3
   resolution: "react-refresh@npm:0.4.3"