chore: remove Babel transform from Jest

apps/chrome-devtools/testing/jest.config.ut.js

@@ -10,6 +10,7 @@ module.exports = {
   ...getOtterJestBaseConfig(rootDir),
   ...getJestUnitTestConfig(),
   transformIgnorePatterns: ['^.+\\.js$'],
+  testEnvironment: 'node',
   globals: {
     chrome: {
       runtime: {},

apps/github-cascading-app/testing/jest.config.ut.js

@@ -8,5 +8,7 @@ const rootDir = path.join(__dirname, '..');
 module.exports = {
   ...createDefaultPreset(getTsJestBaseConfig()),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig()
+  ...getJestUnitTestConfig({
+      testEnvironment: 'node'
+  })
 };

apps/palette-generator/testing/jest.config.ut.js

@@ -8,6 +8,8 @@ const rootDir = path.join(__dirname, '..');
 module.exports = {
   ...createDefaultPreset(getTsJestBaseConfig()),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig(),
-  transformIgnorePatterns: ['^.+\\.js$']
+  ...getJestUnitTestConfig({
+      testEnvironment: 'node',
+      transformIgnorePatterns: ['^.+\\.js$']
+  })
 };

apps/vscode-extension/testing/jest.config.ut.js

@@ -8,5 +8,7 @@ const rootDir = path.join(__dirname, '..');
 module.exports = {
   ...createDefaultPreset(getTsJestBaseConfig()),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig()
+  ...getJestUnitTestConfig({
+    testEnvironment: 'node'
+  })
 };

package.json

@@ -169,8 +169,6 @@
     "@angular/platform-browser": "~20.3.13",
     "@angular/platform-browser-dynamic": "~20.3.13",
     "@angular/router": "~20.3.13",
-    "@babel/core": "~7.28.0",
-    "@babel/preset-typescript": "~7.28.0",
     "@commitlint/cli": "^19.0.0",
     "@commitlint/config-angular": "^19.0.0",
     "@commitlint/config-conventional": "^19.0.0",
@@ -225,14 +223,14 @@
     "ag-grid-community": "~32.3.0",
     "angular-eslint": "~20.6.0",
     "angular-split": "^20.0.0",
-    "babel-loader": "^10.0.0",
     "bootstrap": "5.3.7",
     "bootstrap-icons": "^1.11.3",
     "browserslist": "^4.21.4",
     "clipboard": "^2.0.11",
     "commit-and-tag-version": "^12.0.0",
     "concurrently": "^9.1.0",
     "cpy-cli": "^6.0.0",
+    "cross-env": "^7.0.3",
     "editorconfig-checker": "^6.0.1",
     "eslint": "~9.39.0",
     "eslint-import-resolver-node": "~0.3.9",

packages/@ama-mcp/angular/testing/jest.config.ut.js

@@ -12,6 +12,7 @@ module.exports = {
     testPathIgnorePatterns: [
       '<rootDir>/builders/.*',
       '<rootDir>/schematics/.*'
-    ]
+    ],
+    testEnvironment: 'node'
   })
 };

packages/@ama-mcp/core/testing/jest.config.ut.js

@@ -12,6 +12,7 @@ module.exports = {
     testPathIgnorePatterns: [
       '<rootDir>/builders/.*',
       '<rootDir>/schematics/.*'
-    ]
+    ],
+    testEnvironment: 'node'
   })
 };

packages/@ama-mcp/otter/testing/jest.config.ut.js

@@ -12,6 +12,7 @@ module.exports = {
     testPathIgnorePatterns: [
       '<rootDir>/builders/.*',
       '<rootDir>/schematics/.*'
-    ]
+    ],
+    testEnvironment: 'node'
   })
 };

packages/@ama-mfe/messages/testing/jest.config.ut.js

@@ -8,6 +8,8 @@ const rootDir = path.join(__dirname, '..');
 module.exports = {
   ...createDefaultPreset(getTsJestBaseConfig()),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig(),
-  setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.ts']
+  ...getJestUnitTestConfig({
+      setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.ts'],
+      testEnvironment: 'node'
+  }),
 };

packages/@ama-mfe/ng-utils/testing/jest.config.ut.builders.js

@@ -11,7 +11,8 @@ module.exports = {
   ...getJestUnitTestConfig({
     testPathIgnorePatterns: [
       '<rootDir>/src/.*'
-    ]
+    ],
+    testEnvironment: 'node',
+    setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.builders.ts']
   }),
-  setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.builders.ts']
 };

packages/@ama-openapi/cli/package.json

@@ -49,9 +49,7 @@
     }
   },
   "devDependencies": {
-    "@babel/core": "~7.28.0",
-    "@babel/preset-env": "~7.28.0",
-    "@babel/preset-typescript": "~7.28.0",
+    "@angular/compiler": "~20.3.13",
     "@compodoc/compodoc": "^1.1.32",
     "@eslint-community/eslint-plugin-eslint-comments": "^4.4.0",
     "@nx/eslint": "~21.6.0",
@@ -71,7 +69,6 @@
     "@types/yargs": "~17.0.33",
     "@typescript-eslint/parser": "~8.47.0",
     "angular-eslint": "~20.6.0",
-    "babel-jest": "^30.0.5",
     "chokidar": "^4.0.3",
     "cpy-cli": "^6.0.0",
     "eslint": "~9.39.0",

packages/@ama-openapi/cli/testing/jest.config.ut.cjs

@@ -6,10 +6,7 @@ const rootDir = path.join(__dirname, '..');
 /** @type {import('ts-jest/dist/types').JestConfigWithTsJest} */
 module.exports = {
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig(),
-  transform: {
-    '^.+\\.([mc]?[tj]sx?)$': ['babel-jest', { configFile: path.join(__dirname, 'babel.config.mjs') }]
-  },
-  extensionsToTreatAsEsm: ['.mts'],
-  setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.ts']
+  ...getJestUnitTestConfig({
+      setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.ts']
+  }),
 };

packages/@ama-openapi/core/package.json

@@ -20,7 +20,8 @@
     "copy:renovate": "yarn cpy 'renovate/*.json' dist/renovate",
     "build:source": "tsc -b tsconfig.build.json && yarn cpy package.json dist/",
     "build": "yarn nx build ama-openapi-core",
-    "postbuild": "patch-package-json-main"
+    "postbuild": "patch-package-json-main",
+    "test": "cross-env NODE_OPTIONS=--experimental-vm-modules yarn jest --config=jest.config.cjs"
   },
   "exports": {
     "./package.json": {
@@ -53,9 +54,7 @@
     }
   },
   "devDependencies": {
-    "@babel/core": "~7.28.0",
-    "@babel/preset-env": "~7.28.0",
-    "@babel/preset-typescript": "~7.28.0",
+    "@angular/platform-browser-dynamic": "~20.3.13",
     "@compodoc/compodoc": "^1.1.32",
     "@eslint-community/eslint-plugin-eslint-comments": "^4.4.0",
     "@nx/eslint": "~21.6.0",
@@ -74,8 +73,6 @@
     "@types/semver": "^7.3.13",
     "@typescript-eslint/parser": "~8.47.0",
     "angular-eslint": "~20.6.0",
-    "babel-jest": "^30.0.5",
-    "babel-plugin-transform-import-meta": "^2.0.0",
     "cpy-cli": "^6.0.0",
     "eslint": "~9.39.0",
     "eslint-import-resolver-node": "~0.3.9",

packages/@ama-openapi/core/project.json

@@ -31,8 +31,9 @@
     },
     "lint": {},
     "test": {
+      "executor": "nx:run-script",
       "options": {
-        "jestConfig": "{projectRoot}/jest.config.cjs"
+        "script": "test"
       }
     },
     "prepare-publish": {},

packages/@ama-openapi/core/testing/jest-resolver.cjs

@@ -0,0 +1,19 @@
+/**
+ * Custom Jest resolver to map .mjs imports to .mts source files
+ * Required for ESM support with .mts files
+ * @see https://kulshekhar.github.io/ts-jest/docs/guides/esm-support#resolve-mjsmts-extensions
+ */
+module.exports = (path, options) => {
+  const mjsExtRegex = /\.mjs$/i;
+  const resolver = options.defaultResolver;
+
+  if (mjsExtRegex.test(path)) {
+    try {
+      return resolver(path.replace(mjsExtRegex, '.mts'), options);
+    } catch {
+      // Fall back to default resolver if .mts file doesn't exist
+    }
+  }
+
+  return resolver(path, options);
+};

packages/@ama-openapi/core/testing/jest.config.it.cjs

@@ -1,12 +1,18 @@
 const path = require('node:path');
 const { getTsJestBaseConfig, getOtterJestBaseConfig, getJestIntegrationTestConfig } = require('@o3r/test-helpers');
-const { createDefaultPreset } = require('ts-jest');
+const { createJsWithTsEsmPreset } = require('ts-jest');
 
 const rootDir = path.join(__dirname, '..');
 
+const tsJestConfig = { ...getTsJestBaseConfig(), useESM: true, diagnostics: { ignoreCodes: [151002] } };
+
 /** @type {import('ts-jest/dist/types').JestConfigWithTsJest} */
 module.exports = {
-  ...createDefaultPreset(getTsJestBaseConfig()),
+  ...createJsWithTsEsmPreset(tsJestConfig),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestIntegrationTestConfig()
+  ...getJestIntegrationTestConfig(),
+  testEnvironment: 'node',
+  extensionsToTreatAsEsm: ['.ts', '.mts'],
+  resolver: '<rootDir>/testing/jest-resolver.cjs',
+  injectGlobals: true,
 };

packages/@ama-openapi/core/testing/jest.config.ut.cjs

@@ -1,15 +1,20 @@
 const path = require('node:path');
-const { getOtterJestBaseConfig, getJestUnitTestConfig } = require('@o3r/test-helpers');
+const { getOtterJestBaseConfig, getJestUnitTestConfig, getTsJestBaseConfig } = require('@o3r/test-helpers');
+const { createJsWithTsEsmPreset } = require('ts-jest');
 
 const rootDir = path.join(__dirname, '..');
 
+const tsJestConfig = { ...getTsJestBaseConfig(), useESM: true, diagnostics: { ignoreCodes: [151002] } };
+
 /** @type {import('ts-jest/dist/types').JestConfigWithTsJest} */
 module.exports = {
+  ...createJsWithTsEsmPreset(tsJestConfig),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestUnitTestConfig(),
-  transform: {
-    '^.+\\.([mc]?[tj]sx?)$': ['babel-jest', { configFile: path.join(__dirname, 'babel.config.mjs') }]
-  },
-  extensionsToTreatAsEsm: ['.mts'],
-  setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.ts']
+  ...getJestUnitTestConfig({
+    setupFilesAfterEnv: ['<rootDir>/testing/setup-jest.mjs'],
+    testEnvironment: 'node',
+    extensionsToTreatAsEsm: ['.ts', '.mts'],
+    resolver: '<rootDir>/testing/jest-resolver.cjs',
+    injectGlobals: true
+  }),
 };

packages/@ama-openapi/core/testing/setup-jest.js

@@ -0,0 +1 @@
+// Jest setup file for ama-openapi-core

packages/@ama-openapi/core/testing/setup-jest.mjs

@@ -0,0 +1,16 @@
+/**
+ * Jest setup file for ESM mode
+ * Makes Jest globals available without explicit imports in test files
+ */
+import * as jestGlobals from '@jest/globals';
+
+// Make all Jest globals available
+globalThis.jest = jestGlobals.jest;
+globalThis.expect = jestGlobals.expect;
+globalThis.describe = jestGlobals.describe;
+globalThis.it = jestGlobals.it;
+globalThis.test = jestGlobals.test;
+globalThis.beforeEach = jestGlobals.beforeEach;
+globalThis.afterEach = jestGlobals.afterEach;
+globalThis.beforeAll = jestGlobals.beforeAll;
+globalThis.afterAll = jestGlobals.afterAll;

packages/@ama-openapi/core/testing/setup-jest.ts

@@ -0,0 +1 @@
+// Jest setup file for ama-openapi-core

packages/@ama-openapi/core/tsconfig.spec.json

@@ -2,14 +2,17 @@
   "extends": "../../../tsconfig.jest",
   "compilerOptions": {
     "resolveJsonModule": true,
-    "module": "ESNext",
+    "module": "nodenext",
     "target": "ESNext",
     "allowJs": true,
     "composite": true,
-    "rootDir": "."
+    "rootDir": ".",
+    "moduleResolution": "nodenext",
+    "isolatedModules": true
   },
   "include": [
-    "**/*.spec.ts"
+    "**/*.spec.ts",
+    "testing/**/*.ts"
   ],
   "exclude": [],
   "references": [

packages/@ama-openapi/create/testing/jest.config.it.js

@@ -8,5 +8,7 @@ const rootDir = path.join(__dirname, '..');
 module.exports = {
   ...createDefaultPreset(getTsJestBaseConfig()),
   ...getOtterJestBaseConfig(rootDir),
-  ...getJestIntegrationTestConfig()
+  ...getJestIntegrationTestConfig({
+    testEnvironment: 'node'
+  })
 };

packages/@ama-openapi/redocly-plugin/package.json

@@ -27,7 +27,8 @@
     "ng": "yarn nx",
     "build:source": "tsc -b tsconfig.build.json && yarn cpy package.json dist/",
     "build": "yarn nx build ama-openapi-redocly",
-    "postbuild": "patch-package-json-main"
+    "postbuild": "patch-package-json-main",
+    "test": "cross-env NODE_OPTIONS=--experimental-vm-modules yarn jest --config=jest.config.cjs"
   },
   "dependencies": {
     "@ama-openapi/core": "workspace:~",
@@ -45,9 +46,7 @@
     }
   },
   "devDependencies": {
-    "@babel/core": "~7.28.0",
-    "@babel/preset-env": "~7.28.0",
-    "@babel/preset-typescript": "~7.28.0",
+    "@angular/compiler": "~20.3.13",
     "@compodoc/compodoc": "^1.1.32",
     "@eslint-community/eslint-plugin-eslint-comments": "^4.4.0",
     "@nx/eslint": "~21.6.0",
@@ -68,7 +67,6 @@
     "@types/yargs": "~17.0.33",
     "@typescript-eslint/parser": "~8.47.0",
     "angular-eslint": "~20.6.0",
-    "babel-jest": "^30.0.5",
     "cpy-cli": "^6.0.0",
     "eslint": "~9.39.0",
     "eslint-import-resolver-node": "~0.3.9",

packages/@ama-openapi/redocly-plugin/project.json

@@ -26,9 +26,9 @@
     },
     "lint": {},
     "test": {
+      "executor": "nx:run-script",
       "options": {
-        "jestConfig": "{projectRoot}/jest.config.cjs",
-        "passWithNoTests": true
+        "script": "test"
       }
     },
     "set-version": {},

packages/@ama-openapi/redocly-plugin/testing/jest-resolver.cjs

@@ -0,0 +1,19 @@
+/**
+ * Custom Jest resolver to map .mjs imports to .mts source files
+ * Required for ESM support with .mts files
+ * @see https://kulshekhar.github.io/ts-jest/docs/guides/esm-support#resolve-mjsmts-extensions
+ */
+module.exports = (path, options) => {
+  const mjsExtRegex = /\.mjs$/i;
+  const resolver = options.defaultResolver;
+
+  if (mjsExtRegex.test(path)) {
+    try {
+      return resolver(path.replace(mjsExtRegex, '.mts'), options);
+    } catch {
+      // Fall back to default resolver if .mts file doesn't exist
+    }
+  }
+
+  return resolver(path, options);
+};