facebook · ianschmitz · May 4, 2020 · Jan 22, 2020 · Apr 6, 2020 · Apr 6, 2020
diff --git a/CHANGELOG-0.x.md b/CHANGELOG-0.x.md
diff --git a/package.json b/package.json
@@ -30,7 +30,7 @@
     "get-port": "^4.2.0",
     "globby": "^9.1.0",
     "husky": "^1.3.1",
-    "jest": "24.9.0",
+    "jest": "25.5.4",
     "lerna": "3.20.2",
     "lerna-changelog": "~0.8.2",
     "lint-staged": "^8.0.4",

diff --git a/packages/babel-plugin-named-asset-import/package.json b/packages/babel-plugin-named-asset-import/package.json
@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "babel-plugin-tester": "^8.0.1",
-    "jest": "24.9.0"
+    "jest": "25.5.4"
   },
   "scripts": {
     "test": "jest"

diff --git a/packages/babel-preset-react-app/README.md b/packages/babel-preset-react-app/README.md
@@ -53,6 +53,7 @@ Make sure you have a `tsconfig.json` file at the root directory. You can also us
 ```
 
 ## Absolute Runtime Paths
+
 Absolute paths are enabled by default for imports. To use relative paths instead, set the `absoluteRuntime` option in `.babelrc` to `false`:
 
 ```

diff --git a/packages/confusing-browser-globals/package.json b/packages/confusing-browser-globals/package.json
@@ -20,6 +20,6 @@
     "index.js"
   ],
   "devDependencies": {
-    "jest": "24.9.0"
+    "jest": "25.5.4"
   }
 }
diff --git a/packages/cra-template-typescript/template.json b/packages/cra-template-typescript/template.json
@@ -7,7 +7,7 @@
       "@types/node": "^12.0.0",
       "@types/react": "^16.9.0",
       "@types/react-dom": "^16.9.0",
-      "@types/jest": "^24.0.0",
+      "@types/jest": "^25.0.0",
       "typescript": "^3.8.0"
     }
   }

diff --git a/packages/react-dev-utils/package.json b/packages/react-dev-utils/package.json
@@ -79,7 +79,7 @@
   },
   "devDependencies": {
     "cross-env": "^6.0.3",
-    "jest": "24.9.0"
+    "jest": "25.5.4"
   },
   "scripts": {
     "test": "cross-env FORCE_COLOR=true jest"

diff --git a/packages/react-error-overlay/package.json b/packages/react-error-overlay/package.json
@@ -38,7 +38,7 @@
     "@babel/core": "7.9.6",
     "anser": "1.4.9",
     "babel-eslint": "10.1.0",
-    "babel-jest": "^24.9.0",
+    "babel-jest": "^25.2.6",
     "babel-loader": "8.1.0",
     "babel-preset-react-app": "^9.1.2",
     "chalk": "2.4.2",
@@ -52,7 +52,7 @@
     "eslint-plugin-react": "7.19.0",
     "flow-bin": "^0.116.0",
     "html-entities": "1.3.1",
-    "jest": "24.9.0",
+    "jest": "25.5.4",
     "jest-fetch-mock": "2.1.2",
     "object-assign": "4.1.1",
     "promise": "8.1.0",

diff --git a/packages/react-scripts/config/webpack.config.js b/packages/react-scripts/config/webpack.config.js
@@ -157,28 +157,31 @@ module.exports = function(webpackEnv) {
       : isEnvDevelopment && 'cheap-module-source-map',
     // These are the "entry points" to our application.
     // This means they will be the "root" imports that are included in JS bundle.
-    entry: isEnvDevelopment && !shouldUseReactRefresh ? [
-      // Include an alternative client for WebpackDevServer. A client's job is to
-      // connect to WebpackDevServer by a socket and get notified about changes.
-      // When you save a file, the client will either apply hot updates (in case
-      // of CSS changes), or refresh the page (in case of JS changes). When you
-      // make a syntax error, this client will display a syntax error overlay.
-      // Note: instead of the default WebpackDevServer client, we use a custom one
-      // to bring better experience for Create React App users. You can replace
-      // the line below with these two lines if you prefer the stock client:
-      //
-      // require.resolve('webpack-dev-server/client') + '?/',
-      // require.resolve('webpack/hot/dev-server'),
-      //
-      // When using the experimental react-refresh integration,
-      // the webpack plugin takes care of injecting the dev client for us.
-      webpackDevClientEntry,
-      // Finally, this is your app's code:
-      paths.appIndexJs,
-      // We include the app code last so that if there is a runtime error during
-      // initialization, it doesn't blow up the WebpackDevServer client, and
-      // changing JS code would still trigger a refresh.
-    ] : paths.appIndexJs,
+    entry:
+      isEnvDevelopment && !shouldUseReactRefresh
+        ? [
+            // Include an alternative client for WebpackDevServer. A client's job is to
+            // connect to WebpackDevServer by a socket and get notified about changes.
+            // When you save a file, the client will either apply hot updates (in case
+            // of CSS changes), or refresh the page (in case of JS changes). When you
+            // make a syntax error, this client will display a syntax error overlay.
+            // Note: instead of the default WebpackDevServer client, we use a custom one
+            // to bring better experience for Create React App users. You can replace
+            // the line below with these two lines if you prefer the stock client:
+            //
+            // require.resolve('webpack-dev-server/client') + '?/',
+            // require.resolve('webpack/hot/dev-server'),
+            //
+            // When using the experimental react-refresh integration,
+            // the webpack plugin takes care of injecting the dev client for us.
+            webpackDevClientEntry,
+            // Finally, this is your app's code:
+            paths.appIndexJs,
+            // We include the app code last so that if there is a runtime error during
+            // initialization, it doesn't blow up the WebpackDevServer client, and
+            // changing JS code would still trigger a refresh.
+          ]
+        : paths.appIndexJs,
     output: {
       // The build folder.
       path: isEnvProduction ? paths.appBuild : undefined,

diff --git a/packages/react-scripts/fixtures/kitchensink/template.json b/packages/react-scripts/fixtures/kitchensink/template.json
@@ -2,7 +2,7 @@
   "package": {
     "dependencies": {
       "bootstrap": "4.3.1",
-      "jest": "24.9.0",
+      "jest": "25.5.4",
       "node-sass": "4.12.0",
       "normalize.css": "7.0.0",
       "prop-types": "15.7.2",

diff --git a/packages/react-scripts/package.json b/packages/react-scripts/package.json
@@ -34,7 +34,7 @@
     "@typescript-eslint/eslint-plugin": "^2.10.0",
     "@typescript-eslint/parser": "^2.10.0",
     "babel-eslint": "10.1.0",
-    "babel-jest": "^24.9.0",
+    "babel-jest": "^25.2.6",
     "babel-loader": "8.1.0",
     "babel-plugin-named-asset-import": "^0.3.6",
     "babel-preset-react-app": "^9.1.2",
@@ -55,10 +55,9 @@
     "fs-extra": "^8.1.0",
     "html-webpack-plugin": "4.3.0",
     "identity-obj-proxy": "3.0.0",
-    "jest": "24.9.0",
-    "jest-environment-jsdom-fourteen": "1.0.1",
-    "jest-resolve": "24.9.0",
-    "jest-watch-typeahead": "0.4.2",
+    "jest": "25.5.4",
+    "jest-resolve": "25.5.1",
+    "jest-watch-typeahead": "0.5.0",
     "mini-css-extract-plugin": "0.9.0",
     "optimize-css-assets-webpack-plugin": "5.0.3",
     "pnp-webpack-plugin": "1.6.4",

diff --git a/packages/react-scripts/scripts/utils/createJestConfig.js b/packages/react-scripts/scripts/utils/createJestConfig.js
@@ -38,7 +38,7 @@ module.exports = (resolve, rootDir, isEjecting) => {
       '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
       '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
     ],
-    testEnvironment: 'jest-environment-jsdom-fourteen',
+    testEnvironment: 'jsdom',
     transform: {
       '^.+\\.(js|jsx|mjs|cjs|ts|tsx)$': isEjecting
         ? '<rootDir>/node_modules/babel-jest'