'use strict'; require('../common'); const assert = require('assert'); const net = require('net'); { const invalidKeys = [ 'objectMode', 'readableObjectMode', 'writableObjectMode', ]; invalidKeys.forEach((invalidKey) => { const option = { port: 8080, [invalidKey]: true }; const message = `The property 'options.${invalidKey}' is not supported. Received true`; assert.throws(() => { net.createConnection(option); }, { code: 'ERR_INVALID_ARG_VALUE', name: 'TypeError', message: new RegExp(message) }); }); }