1// Copyright Joyent, Inc. and other Node contributors. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a 4// copy of this software and associated documentation files (the 5// "Software"), to deal in the Software without restriction, including 6// without limitation the rights to use, copy, modify, merge, publish, 7// distribute, sublicense, and/or sell copies of the Software, and to permit 8// persons to whom the Software is furnished to do so, subject to the 9// following conditions: 10// 11// The above copyright notice and this permission notice shall be included 12// in all copies or substantial portions of the Software. 13// 14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20// USE OR OTHER DEALINGS IN THE SOFTWARE. 21 22'use strict'; 23require('../common'); 24const fixtures = require('../common/fixtures'); 25const assert = require('assert'); 26 27const fs = require('fs'); 28const FSReadable = fs.ReadStream; 29 30const path = require('path'); 31const file = path.resolve(fixtures.path('x1024.txt')); 32 33const size = fs.statSync(file).size; 34 35const expectLengths = [1024]; 36 37const Stream = require('stream'); 38 39class TestWriter extends Stream { 40 constructor() { 41 super(); 42 this.buffer = []; 43 this.length = 0; 44 } 45 46 write(c) { 47 this.buffer.push(c.toString()); 48 this.length += c.length; 49 return true; 50 } 51 52 end(c) { 53 if (c) this.buffer.push(c.toString()); 54 this.emit('results', this.buffer); 55 } 56} 57 58const r = new FSReadable(file); 59const w = new TestWriter(); 60 61w.on('results', function(res) { 62 console.error(res, w.length); 63 assert.strictEqual(w.length, size); 64 assert.deepStrictEqual(res.map(function(c) { 65 return c.length; 66 }), expectLengths); 67 console.log('ok'); 68}); 69 70r.pipe(w); 71