node/test/parallel/test-eslint-required-modules.js

'use strict';

const common = require('../common');
if ((!common.hasCrypto) || (!common.hasIntl)) {
  common.skip('ESLint tests require crypto and Intl');
}

common.skipIfEslintMissing();

const RuleTester = require('../../tools/eslint/node_modules/eslint').RuleTester;
const rule = require('../../tools/eslint-rules/required-modules');

new RuleTester({
  languageOptions: {
    sourceType: 'script',
  },
}).run('required-modules', rule, {
  valid: [
    {
      code: 'require("common")',
      options: [{ common: 'common' }]
    },
    {
      code: 'foo',
      options: []
    },
    {
      code: 'require("common")',
      options: [{ common: 'common(/index\\.(m)?js)?$' }]
    },
    {
      code: 'require("common/index.js")',
      options: [{ common: 'common(/index\\.(m)?js)?$' }]
    },
  ],
  invalid: [
    {
      code: 'foo',
      options: [{ common: 'common' }],
      errors: [{ message: 'Mandatory module "common" must be loaded.' }]
    },
    {
      code: 'require("common/fixtures.js")',
      options: [{ common: 'common(/index\\.(m)?js)?$' }],
      errors: [{
        message:
          'Mandatory module "common" must be loaded.'
      }]
    },
    {
      code: 'require("somethingElse")',
      options: [{ common: 'common' }],
      errors: [{ message: 'Mandatory module "common" must be loaded.' }]
    },
  ]
});