How to mock specific method mockImplementation jest in nodejs?

 Here is some best solution , how we can mock specific method from utils file.

Step1: I have created a utils.js file and it contains two methods

like :

const getSchoolName = async ({schoolId }) => {

return 'Bikash School';

};

const getAllSchoolList = async ({schoolId }) => {

return {object};

};

Step 2 : create actual-utils-call.test.js  and import the utils.js file

import { getAllSchoolList, getSchoolName } from './util';

jest.mock('./utils', () => {

const originalUtils = jest.requireActual('./utils');

return {

...originalUtils,

getSchoolName: jest.fn(),

};

});

describe('Mock specific mockImplementation', () => {

it('getSchoolName method should mock from util file', async () => {

getSchoolName.mockImplementation(() => {

return 'different School Name';

});

});

// Here you call your actual method where getSchoolName method is invoke

});