I'm trying to add jest to my typescript project for testing, but when I run jest, it keeps giving me the error

  ● Test suite failed to run

Cannot find module 'fs/promises' from 'src/path/to/file'

    Require stack:
      src/path/to/file
      test/test.ts

    > 3 | import fsp from 'fs/promises';

      at Resolver.resolveModule (node_modules/jest-resolve/build/resolver.js:311:11)
      at Object.<anonymous> (src/path/to/file.ts:3:1)

The program itself runs fine, but whenever I try to run jest on it, it runs into this issue. I've tried adding jest.mock('fs');, which didn't help, and adding jest.mock('fs/promises'); gives the same error in the test file.

I've read that certain versions of Node don't support 'fs/promises' and instead need require('fs').promises, which I've tried and still doesn't work (I'm on Node version 12).

How can I configure jest to be able to load 'fs/promises'? I've included my jest.config.js file below:

module.exports = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  testPathIgnorePatterns: [
    '/node_modules/',
    '/out/',
  ],
  moduleDirectories: [
    '.',
    'node_modules'
  ],
  moduleFileExtensions: [
    'ts',
    'tsx',
    'js',
    'jsx'
  ]
}