ERR_UNKNOWN_FILE_EXTENSION reason: Unknown file extension ".ts"

[alexbjorlig]

Our team upgraded our mono-repo, and moved some dependencies to a package. Now our globalSetup file throws the following error:

TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Jest: Got error running globalSetup - <path-to-project>/apps/web-app/integration-tests/integration-global-setup.ts, reason: Unknown file extension ".ts" for <path-to-project>/apps/web-app/integration-tests/integration-global-setup.ts

Our integration-tests are written in a ESM module.

.swcrc

{
    "jsc": {
        "parser": {
            "syntax": "typescript",
            "tsx": false,
            "decorators": false,
            "dynamicImport": true,
            "importMeta": false
        }
    }
}

jest.config.integration.cjs

module.exports = {
    roots: ['integration-tests'],
    watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname'],
    testEnvironment: 'node',
    transform: {
        '^.+\\.(t|j)sx?$': [
            '@swc/jest',
            {
                jsc: {
                    target: 'es2021',
                },
            },
        ],
    },
    setupFiles: ['<rootDir>/src/helpers/test-helpers/global-before-all-jest-integration.ts'],
    globalSetup: '<rootDir>/integration-tests/integration-global-setup.ts',
    testMatch: ['**/?(*.)+(spec|test).ts'],
    transformIgnorePatterns: [],
    moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
    globals: {
        'ts-jest': {
            tsconfig: 'tsconfig.spec.json',
        },
    },
    testTimeout: 20000,
};

integration-global-setup.ts

import fetch from 'node-fetch';
import { testHelpersGetDb } from './helpers/test-helpers-get-db';
import { syncIndexesToDb } from '@eddy/core/src/db/sync-indexes-to-db'; // <== Fails with this line of code

async function eddySleep(durationInMs: number): Promise<void> {
    return new Promise((resolve) => {
        setTimeout(() => resolve(), durationInMs);
    });
}

let didIndexesSync: Promise<any>;

export default async function integrationGlobalSetup() {
    try {

[alexbjorlig]

It was related to not being able to use .ts in global teardown/setup files kulshekhar/ts-jest#411 (comment)