node/test/parallel/test-debug-brk.js

'use strict';

const common = require('../common');
const assert = require('assert');
const spawnSync = require('child_process').spawnSync;

const args = [`--debug-brk=${common.PORT}`, '-e', '0'];
const proc = spawnSync(process.execPath, args, {encoding: 'utf8'});
assert(/Debugger listening on/.test(proc.stderr));