1'use strict'; 2require('../common'); 3const assert = require('assert'); 4const fs = require('fs'); 5const stream = require('stream'); 6const fixtures = require('../common/fixtures'); 7const encoding = 'base64'; 8 9const example = fixtures.path('x.txt'); 10const assertStream = new stream.Writable({ 11 write: function(chunk, enc, next) { 12 const expected = Buffer.from('xyz'); 13 assert(chunk.equals(expected)); 14 } 15}); 16assertStream.setDefaultEncoding(encoding); 17fs.createReadStream(example, encoding).pipe(assertStream); 18