期望模拟库函数被调用

Question

我正在以这种方式模拟库 (auth0) 中的一个函数：

jest.mock('@auth0/auth0-react', () => ({
    useAuth0: () => {
        return {
            logout: jest.fn(),
        }
    }
}));

在我的测试过程中，我怎么能期望注销功能被调用？

Answer 1

由于您尝试手动 mock a node_module，您需要创建一个模拟模块文件。手动模拟是通过在模块紧邻的 mocks/ 子目录中编写模块来定义的。在你的情况下，模拟应该放在 __mocks__ 目录中 node_modules.

旁边

root/__mocks__/@auth0/auth0-react.js

'use strict';

const handleRedirectCallback = jest.fn(() => ({ appState: {} }));
const buildLogoutUrl = jest.fn();
const buildAuthorizeUrl = jest.fn();
const checkSession = jest.fn();
const getTokenSilently = jest.fn();
const getTokenWithPopup = jest.fn();
const getUser = jest.fn();
const getIdTokenClaims = jest.fn();
const isAuthenticated = jest.fn(() => false);
const loginWithPopup = jest.fn();
const loginWithRedirect = jest.fn();
const logout = jest.fn();

export const Auth0Client = jest.fn(() => {
  return {
    buildAuthorizeUrl,
    buildLogoutUrl,
    checkSession,
    handleRedirectCallback,
    getTokenSilently,
    getTokenWithPopup,
    getUser,
    getIdTokenClaims,
    isAuthenticated,
    loginWithPopup,
    loginWithRedirect,
    logout,
  };
});

test.ts（如果你用打字稿写测试）

import { mocked } from 'ts-jest/utils';
const clientMock = mocked(new Auth0Client({ client_id: '', domain: '' }));

describe('auth0 test', () => {
   it('should check logout is called', async () => {
      await my_logout_function();
      expect(clientMock.logout).toHaveBeenCalled();
   });
});

test.js（如果您在 javascript 中编写测试）

const clientMock = new Auth0Client({ client_id: '', domain: '' });

describe('auth0 test', () => {
   it('should check logout is called', async () => {
      await my_logout_function();
      expect(clientMock.logout).toHaveBeenCalled();
   });
});

期望模拟库函数被调用

Expect mocked library function to have been called

javascript

reactjs

jestjs

auth0