nodejs/test/parallel/test-module-prototype-mutation.js

'use strict';
const common = require('../common');
const fixtures = require('../common/fixtures');
const { Channel } = require('diagnostics_channel');
const assert = require('assert');

Object.defineProperty(Object.prototype, 'name', {
  __proto__: null,
  get: common.mustNotCall('get %Object.prototype%.name'),
  set: function(v) {
    // A diagnostic_channel is created to track module loading
    // when using `require` or `import`. This class contains a
    // `name` property that would cause a false alert for this
    // test case. See Channel.prototype.name.
    if (!(this instanceof Channel)) {
      common.mustNotCall('set %Object.prototype%.name')(v);
    }
  },
  enumerable: false,
});
Object.defineProperty(Object.prototype, 'main', {
  __proto__: null,
  get: common.mustNotCall('get %Object.prototype%.main'),
  set: common.mustNotCall('set %Object.prototype%.main'),
  enumerable: false,
});
Object.defineProperty(Object.prototype, 'type', {
  __proto__: null,
  get: common.mustNotCall('get %Object.prototype%.type'),
  set: common.mustNotCall('set %Object.prototype%.type'),
  enumerable: false,
});
Object.defineProperty(Object.prototype, 'exports', {
  __proto__: null,
  get: common.mustNotCall('get %Object.prototype%.exports'),
  set: common.mustNotCall('set %Object.prototype%.exports'),
  enumerable: false,
});
Object.defineProperty(Object.prototype, 'imports', {
  __proto__: null,
  get: common.mustNotCall('get %Object.prototype%.imports'),
  set: common.mustNotCall('set %Object.prototype%.imports'),
  enumerable: false,
});

assert.strictEqual(
  require(fixtures.path('es-module-specifiers', 'node_modules', 'no-main-field')),
  'no main field'
);

import(fixtures.fileURL('es-module-specifiers', 'index.mjs'))
  .then(common.mustCall((module) => assert.strictEqual(module.noMain, 'no main field')));