1'use strict'; 2const common = require('../common'); 3const { Writable } = require('stream'); 4const stream = new Writable({ 5 write(chunk, enc, cb) { cb(); cb(); } 6}); 7 8stream.on('error', common.expectsError({ 9 name: 'Error', 10 message: 'Callback called multiple times', 11 code: 'ERR_MULTIPLE_CALLBACK' 12})); 13 14stream.write('foo'); 15