1'use strict'; 2const common = require('../common'); 3 4const { strictEqual } = require('assert'); 5const { Writable } = require('stream'); 6 7const w = new Writable(); 8 9w.on('error', common.expectsError({ 10 name: 'Error', 11 code: 'ERR_METHOD_NOT_IMPLEMENTED', 12 message: 'The _write() method is not implemented' 13})); 14 15const bufferBlerg = Buffer.from('blerg'); 16 17w.end(bufferBlerg); 18 19const _write = common.mustCall((chunk, _, next) => { 20 next(); 21}); 22 23const _writev = common.mustCall((chunks, next) => { 24 strictEqual(chunks.length, 2); 25 next(); 26}); 27 28const w2 = new Writable({ write: _write, writev: _writev }); 29 30strictEqual(w2._write, _write); 31strictEqual(w2._writev, _writev); 32 33w2.write(bufferBlerg); 34 35w2.cork(); 36w2.write(bufferBlerg); 37w2.write(bufferBlerg); 38 39w2.end(); 40