updated example to use esm 3.1.0

SomeComponent.jsx

@@ -1,14 +1,11 @@
-/*import React from 'react';
-import addBar from './index';*/
-
-const React = require('react');
-const addBar = require('./index').default;
+import React from 'react';
+import addBar from './index';
 
 class SomeComponent extends React.Component {
-    render() {
-        return React.createElement('div', null, addBar(this.props.value));
-    }
+  render() {
+    return React.createElement('div', null, addBar(this.props.value));
+  }
 }
 
 module.exports.default = SomeComponent;
-// export default SomeComponent;
+// export default SomeComponent;

index.js

@@ -1,10 +1,7 @@
-//import * as bar from 'anotherRoot/bar';
-const bar = require('anotherRoot/bar');
+import bar from 'anotherRoot/bar';
 
-function addBar(y) { 
-    // ESM:
-    return bar.default() + y; 
+function addBar(y) {
+  return bar() + y;
 }
 
-//export default addBar;
-module.exports.default = addBar;
+export default addBar;

jest.config.js

@@ -0,0 +1,9 @@
+module.exports = {
+  transform: {
+    '\\.m?js$': '<rootDir>/node_modules/esm/esm.js'
+  },
+  moduleNameMapper: {
+    '^anotherRoot/(.*)$': '<rootDir>/lib/anotherRoot/$1'
+  },
+  transformIgnorePatterns: []
+};

package.json

@@ -1,19 +1,16 @@
 {
   "name": "esm-jest",
   "scripts": {
-    "test": "node node_modules/jest/bin/jest.js --runInBand --no-cache --config jestconfig.js"
-  },
-  "directories": {
-    "test": "test"
+    "test": "node -r esm node_modules/jest/bin/jest.js --runInBand --no-cache --config jest.config.js"
   },
   "dependencies": {
-    "esm": "3.0.12",
+    "esm": "3.1.0",
     "enzyme": "3.3.0",
     "enzyme-adapter-react-16": "1.1.1",
     "react": "16.3.0",
     "react-dom": "16.3.0"
   },
   "devDependencies": {
-    "jest": "^22.4.3"
+    "jest": "^23.6.0"
   }
 }

test/__tests__/SomeComponentTest.js

@@ -1,28 +1,17 @@
-/*
 import React from 'react';
 import Enzyme from 'enzyme';
 import Adapter from 'enzyme-adapter-react-16';
 
 import { shallow } from 'enzyme';
 import SomeComponent from '../../SomeComponent';
 import * as bar from 'anotherRoot/bar';
-*/
-
-const React = require('react');
-const Enzyme = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-const shallow = Enzyme.shallow;
-
-const SomeComponent = require('../../SomeComponent').default;
-const bar = require('anotherRoot/bar');
 
 Enzyme.configure({ adapter: new Adapter() });
 
 describe('SomeComponent', () => {
-    it('should test component', () => {
-        spyOn(bar, 'default').and.returnValue(7);
-        const wrapper = shallow(React.createElement(SomeComponent, {value: 1}));
-        expect(wrapper.text()).toBe('8');
-    });
-});
+  it('should test component', () => {
+    spyOn(bar, 'default').and.returnValue(7);
+    const wrapper = shallow(React.createElement(SomeComponent, { value: 1 }));
+    expect(wrapper.text()).toBe('8');
+  });
+});

test/__tests__/test.js

@@ -1,17 +1,11 @@
-/*
 import { addBar } from '../../index';
 import * as bar from 'anotherRoot/bar';
-*/
-
-const bar = require('anotherRoot/bar');
-const addBar = require('../../index').default;
 
 test('addBar should be add five', () => {
-	expect(addBar(2)).toBe(7);
+  expect(addBar(2)).toBe(7);
 });
 
 test('addBar should be add another number', () => {
-	spyOn(bar, 'default').and.returnValue(6);
-	expect(addBar(2)).toBe(8);
+  spyOn(bar, 'default').and.returnValue(6);
+  expect(addBar(2)).toBe(8);
 });
-