How to stub or ignore meteor/session in jest env?

Question

Jestjs gives me this error when I am testing a react component:

---

import {Session} from 'meteor/session' ". The error is "Cannot find module 'meteor/session' "

---

myTestFile

import PlanSetup from "../../../ui/pages/planSetup/planSetup";

let PlanSetupWrapper;
const PlansetupProps={
    name: "string",
    budget: "string",
    lang: { english: "en",
               French : "fr"
             }
};


describe('<PlanSetup />', () => {
    PlanSetupWrapper = mount(<PlanSetup {...PlansetupProps}/>);
    it('All child components renders correctly', () => {
 expect(PlanSetupWrapper).toMatchSnapshot();
});
});

Answer 1

**jest.config.js**
module.exports = {
    moduleNameMapper: {
      "^meteor/(.*)": "<rootDir>/imports/tests/mocks/meteor.js"
    },
    transform: {
        "^.+\\.(js|jsx)?$": "babel-jest",
        ".+\\.(css|styl|less|sass|scss)$": "/home/megha/Megha/TVStack/dan-tvstack-ui/node_modules/jest-css-modules-transform",
    },
    moduleFileExtensions: [
      'js',
      'jsx'

    ],
    modulePaths: [
        "<rootDir>/node_modules/"
      ],
    globals: {
              "window": true
            },

    unmockedModulePathPatterns: [
      '/^imports\\/.*\\.jsx?$/'
    ],
    setupFiles: [
              "<rootDir>/setupTests.js"
            ]
  };


**<rootDir>/imports/tests/mocks/meteor.js**

exports._session = {
    __: function(value) { return value }
  };