// Flags: --expose-internals 'use strict'; const common = require('../common'); const StreamWrap = require('internal/js_stream_socket'); const Duplex = require('stream').Duplex; { const stream = new Duplex({ read() {}, write() {} }); stream.setEncoding('ascii'); const wrap = new StreamWrap(stream); wrap.on('error', common.expectsError({ type: Error, code: 'ERR_STREAM_WRAP', message: 'Stream has StringDecoder set or is in objectMode' })); stream.push('ohai'); } { const stream = new Duplex({ read() {}, write() {}, objectMode: true }); const wrap = new StreamWrap(stream); wrap.on('error', common.expectsError({ type: Error, code: 'ERR_STREAM_WRAP', message: 'Stream has StringDecoder set or is in objectMode' })); stream.push(new Error('foo')); }