test/parallel/test-process-env-sideeffects.js

'use strict';
const common = require('../common');
common.skipIfInspectorDisabled();

// Test that read-only process.env access is considered to have no
// side-effects by the inspector.

const assert = require('assert');
const inspector = require('inspector');

const session = new inspector.Session();
session.connect();

process.env.TESTVAR = 'foobar';

session.post('Runtime.evaluate', {
  expression: 'process.env.TESTVAR',
  throwOnSideEffect: true
}, (error, res) => {
  assert.ifError(error);
  assert.deepStrictEqual(res, {
    result: { type: 'string', value: 'foobar' }
  });
});