node_modules/avvio/test/errors.test.js

'use strict'

const { test } = require('tap')
const errors = require('../lib/errors')

test('Correct codes of AvvioErrors', t => {
  const testcases = [
    'AVV_ERR_EXPOSE_ALREADY_DEFINED',
    'AVV_ERR_ATTRIBUTE_ALREADY_DEFINED',
    'AVV_ERR_CALLBACK_NOT_FN',
    'AVV_ERR_PLUGIN_NOT_VALID',
    'AVV_ERR_ROOT_PLG_BOOTED',
    'AVV_ERR_PARENT_PLG_LOADED',
    'AVV_ERR_READY_TIMEOUT',
    'AVV_ERR_PLUGIN_EXEC_TIMEOUT'
  ]

  t.plan(testcases.length + 1)
  // errors.js exposes errors and the createError fn
  t.equal(testcases.length, Object.keys(errors).length)

  for (const testcase of testcases) {
    const error = new errors[testcase]()
    t.equal(error.code, testcase)
  }
})