test: run tests in ESM mode

Author: char0n

.github/workflows/build.yml

@@ -87,7 +87,7 @@ jobs:
       - name: Build monorepo for testing
         run: |
           npm run prebuild
-          npm run build:cjs
+          npm run build:es
       - name: Execute tests in monorepo
         run: npm run test
 

README.md

@@ -235,17 +235,18 @@ All the packages have identical build system and expose build artifacts in ident
 After building artifacts, every package will contain five (5) additional directories.
 All the build artifacts are polymorphic - they can run in different environments like [Web Browser](https://en.wikipedia.org/wiki/Web_browser), [Node.js](https://nodejs.org/) or [Web Worker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API).
 
-**cjs/**
+***.cjs**
 
-This directory mirrors the structure of the codebase in `src/`.
-Contains ES5 compatible code with [CommonJS](https://en.wikipedia.org/wiki/CommonJS) style imports.
-Build fragments in this directory are ideal for [Node.js](https://nodejs.org/) and similar environments.
+These files are generated inside `src/` directory.
+Contain ES5 compatible code with [CommonJS](https://en.wikipedia.org/wiki/CommonJS) style imports.
+These build fragments are ideal for legacy [Node.js](https://nodejs.org/) and similar environments.
 
-**es/**
+***.mjs**
 
-This directory mirrors the structure of the codebase in `src/`.
-Contains ES5 compatible code with [ES6 imports](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import).
-Build fragments in this directory are ideal for bundling with [Webpack](https://webpack.js.org/) or similar bundlers.
+These files are generated inside `src/` directory.
+Contain ES5 compatible code with [ES6 imports](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import).
+These build fragments are ideal for modern [Node.js](https://nodejs.org/),
+bundling with [Webpack](https://webpack.js.org/) or similar bundlers.
 
 **dist/**
 

babel.config.cjs

@@ -2,18 +2,16 @@ const path = require('node:path');
 
 module.exports = {
   babelrcRoots: ['packages/*'],
-  ignore: [
-    '**/*.d.ts',
-  ],
+  ignore: ['**/*.d.ts'],
   env: {
     cjs: {
-      browserslistEnv: "isomorphic-production",
+      browserslistEnv: 'isomorphic-production',
       presets: [
         [
           '@babel/preset-env',
           {
             debug: false,
-            modules: "commonjs",
+            modules: 'commonjs',
             loose: true,
             useBuiltIns: false,
             forceAllTransforms: false,
@@ -25,7 +23,7 @@ module.exports = {
           '@babel/preset-typescript',
           {
             allowDeclareFields: true,
-          }
+          },
         ],
       ],
       plugins: [
@@ -40,12 +38,15 @@ module.exports = {
           },
         ],
         process.env.NODE_ENV !== 'test'
-          ? [path.join(__dirname, './scripts/babel-plugin-add-import-extension.cjs'), { extension: 'cjs' }]
-          : false
+          ? [
+              path.join(__dirname, './scripts/babel-plugin-add-import-extension.cjs'),
+              { extension: 'cjs' },
+            ]
+          : false,
       ].filter(Boolean),
     },
     es: {
-      browserslistEnv: "isomorphic-production",
+      browserslistEnv: 'isomorphic-production',
       presets: [
         [
           '@babel/preset-env',
@@ -62,7 +63,7 @@ module.exports = {
           '@babel/preset-typescript',
           {
             allowDeclareFields: true,
-          }
+          },
         ],
       ],
       plugins: [
@@ -77,11 +78,14 @@ module.exports = {
             version: '^7.22.15',
           },
         ],
-        [path.join(__dirname, './scripts/babel-plugin-add-import-extension.cjs'), { extension: 'mjs' }],
+        [
+          path.join(__dirname, './scripts/babel-plugin-add-import-extension.cjs'),
+          { extension: 'mjs' },
+        ],
       ],
     },
     browser: {
-      browserslistEnv: "browser-production",
+      browserslistEnv: 'browser-production',
       presets: [
         [
           '@babel/preset-env',
@@ -98,7 +102,7 @@ module.exports = {
           '@babel/preset-typescript',
           {
             allowDeclareFields: true,
-          }
+          },
         ],
       ],
       plugins: [
@@ -112,7 +116,7 @@ module.exports = {
             version: '^7.22.15',
           },
         ],
-      ]
+      ],
     },
   },
 };