/Javascript/React/Mock a function jest react

Mock a function jest react

import React from 'react';
import { render } from '@testing-library/react';
import '@testing-library/jest-dom/extend-expect'
import App from './App';

import { randomNameGenerator } from "./utils";

jest.mock('./utils.js', () => ({ 
  randomNameGenerator: jest.fn()
}));

describe('test', () => {
  it('allows Jest method mocking 1', () => {
    randomNameGenerator.mockImplementation(() => "Craig");
    const { getByText } = render(<App />);
    expect(getByText("Craig")).toBeInTheDocument()
  });

  it('allows Jest method mocking 2', () => {
    randomNameGenerator.mockImplementation(() => "Not Craig");
    const { getByText } = render(<App />);
    expect(getByText("Not Craig")).toBeInTheDocument()
  });
});

Source: stackoverflow.com

Similar codes

0 vote204 views1 answer
React icons cdn
Javascript React
0 vote226 views1 answer
How to send data to another page in react from button
Javascript React
0 vote222 views1 answer
How to create module in react
Javascript React
1 vote225 views1 answer
Arrow not showing react slick
Javascript React
0 vote222 views1 answer
Dropdown list value react fragment
Javascript React
0 vote224 views1 answer
React setstate in another component
Javascript React
1 vote231 views1 answer
How to authenticate token in react using axios
Javascript React
0 vote227 views1 answer
Js map vs react js map
Javascript React
0 vote232 views1 answer
How to pass property component in react enzyme
Javascript React
110 votes229 views2 answers
Create react js app
Javascript React