'use strict'; const common = require('../common'); const { Writable } = require('stream'); { const w = new Writable({ write(chunk, encoding, callback) { callback(null); }, final(callback) { queueMicrotask(callback); } }); w.end(); w.destroy(); w.on('prefinish', common.mustNotCall()); w.on('finish', common.mustNotCall()); w.on('close', common.mustCall()); }