TypeError: Cannot read property 'post' of undefined

[NuckChorris]

I'm trying to spin up a React project with fetch-mock-jest, and having some strange issues! Specifically I'm seeing that the imported object is undefined!

Versions:

├─┬ fetch-mock-jest@1.5.1
│ └── fetch-mock@9.11.0
├── jest@27.0.1 
└── node-fetch@2.6.1 

Basically all the errors are:

    TypeError: Cannot read property 'post' of undefined

      29 |
      30 |   test('with failed response', async () => {
    > 31 |     fetchMock.post('https://kitsu.io/api/oauth/token', {
         |               ^
      32 |       status: 401,
      33 |       body: {
      34 |         error: 'invalid_grant',

      at Object.<anonymous> (src/actions/loginWithAssertion.test.ts:31:15)

And an excerpt of the code is:

import fetchMock from 'fetch-mock';
afterEach(() => fetchMock.reset());
jest.mock('app/constants/config');

import { LoginFailed, NetworkError } from 'app/errors';

import loginWithAssertion from './loginWithAssertion';
describe('loginWithAssertion', () => {
  test('with successful response', async () => {
    fetchMock.post('https://kitsu.io/api/oauth/token', {
      status: 200,
...

It's not wrong, either, I dropped into a debugger and it's all undefined 🤷‍♀️ I don't have any __mocks__ which could be doing this, it's a brand-new project I'm bootstrapping

For further details:

• full test logs
• test source code
• jest config

[christian98]

Were you able to resolve this? I'm currently facing the same problem.