SyntaxError: Cannot use import statement outside a module

[pavel-butkevich-98]

Hi! Trying to add customSequencer:

import type { Test } from 'jest-runner';
const Sequencer = require('@jest/test-sequencer').default;

class CustomSequencer extends Sequencer {
  sort(tests: Test[]) {
    const orderPath = [
      './../tests/webhooks/authentication.spec.ts',
      './../tests/webhooks/notify-booking-change.spec.ts',
    ];
    return tests.sort((testA, testB) => (testA.path > testB.path ? 1 : -1));
}

export default CustomSequencer;

But, Have an error when run jest command:

My depencencies:

"dependencies": {
    "@hqoapp/functional-vertical-sdk": "0.0.60",
    "@jest/reporters": "25.2.4",
    "@jest/test-result": "25.2.4",
    "@jest/test-sequencer": "26.0.1",
    "@types/body-parser": "1.19.0",
    "@types/express": "4.17.3",
    "@types/jest": "25.1.4",
    "@types/lodash": "4.14.149",
    "@types/node": "13.9.5",
    "@types/node-ipc": "9.1.2",
    "@types/uuid": "3.4.4",
    "aws-sdk": "2.650.0",
    "axios": "0.19.2",
    "body-parser": "1.19.0",
    "chalk": "4.0.0",
    "class-transformer": "0.2.3",
    "class-validator": "0.11.1",
    "dotenv": "8.2.0",
    "express": "4.17.1",
    "jest": "25.2.4",
    "jest-runner": "26.0.1",
    "lodash": "4.17.15",
    "node-ipc": "9.1.1",
    "reflect-metadata": "0.1.13",
    "start-server-and-test": "1.10.11",
    "ts-jest": "25.3.0",
    "ts-node": "8.8.1",
    "typescript": "3.8.3",
    "uuid": "3.3.2"
  }

[SimenB]

We don't transpile test sequencers, you need to make sure they are CJS.

A PR adding support for transpiling it is welcome, see #8810

[github-actions]

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