• File: test-buffer-iterator.js
  • Full Path: /var/www/sandbox/node_modules/buffer/test/node/test-buffer-iterator.js
  • Date Modified: 02/20/2025 6:17 PM
  • File size: 925 bytes
  • MIME-type: text/plain
  • Charset: utf-8
'use strict';
var Buffer = require('../../').Buffer;


var assert = require('assert');

var buffer = Buffer.from([1, 2, 3, 4, 5]);
var arr;
var b;

// buffers should be iterable

arr = [];

for (b of buffer)
  arr.push(b);

assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);


// buffer iterators should be iterable

arr = [];

for (b of buffer[Symbol.iterator]())
  arr.push(b);

assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);


// buffer#values() should return iterator for values

arr = [];

for (b of buffer.values())
  arr.push(b);

assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);


// buffer#keys() should return iterator for keys

arr = [];

for (b of buffer.keys())
  arr.push(b);

assert.deepStrictEqual(arr, [0, 1, 2, 3, 4]);


// buffer#entries() should return iterator for entries

arr = [];

for (b of buffer.entries())
  arr.push(b);

assert.deepStrictEqual(arr, [
  [0, 1],
  [1, 2],
  [2, 3],
  [3, 4],
  [4, 5]
]);