jest.config.ts

import { JestConfigWithTsJest } from 'ts-jest';

const config: JestConfigWithTsJest = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  extensionsToTreatAsEsm: ['.ts'],
  transform: {
    '^.+\\.[tj]sx?$': [
      'ts-jest',
      {
        useESM: true,
      },
    ],
  },
};

export default config;