test/test/fixtures/test-runner/nested.js

Node.js 18's node:test, as an npm package

// https://github.com/nodejs/node/blob/f8ce9117b19702487eb600493d941f7876e00e01/test/fixtures/test-runner/nested.js
'use strict'
const test = require('#node:test')

test('level 0a', { concurrency: 4 }, async (t) => {
  t.test('level 1a', async (t) => {
  })

  t.test('level 1b', async (t) => {
    throw new Error('level 1b error')
  })

  t.test('level 1c', { skip: 'aaa' }, async (t) => {
  })

  t.test('level 1d', async (t) => {
    t.diagnostic('level 1d diagnostic')
  })
})

test('level 0b', async (t) => {
  throw new Error('level 0b error')
})