/* eslint-disable @typescript-eslint/no-var-requires */

const Sequencer = require('@jest/test-sequencer').default;

// https://stackoverflow.com/a/12646864

function shuffleArray(array) {

for (let i = array.length - 1; i > 0; i--) {

const j = Math.floor(Math.random() * (i + 1));

// eslint-disable-next-line no-param-reassign

[array[i], array[j]] = [array[j], array[i]];

}

}

// This randomizes test files, not be confused with [Ability to run tests within a file in a random order](https://github.com/facebook/jest/issues/4386)

// https://github.com/facebook/jest/issues/6194#issuecomment-582428526

class JestRandomSequencer extends Sequencer {

// eslint-disable-next-line class-methods-use-this

sort(tests) {

// https://stackoverflow.com/a/18650169

// tests.sort(() => Math.random() - 0.5);

shuffleArray(tests);

return tests;

}

}

module.exports = JestRandomSequencer;