node/test/parallel/test-buffer-iterator.js
Rich Trott 14f5bb7a99 test,buffer: refactor redeclarations
Many variables in the buffer tests are redeclared. Change them so that
they are scoped appropriately.

PR-URL: https://github.com/nodejs/node/pull/4893
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-02-08 23:01:01 +11:00

63 lines
874 B
JavaScript

'use strict';
require('../common');
var assert = require('assert');
var buffer = new Buffer([1, 2, 3, 4, 5]);
var arr;
var b;
// buffers should be iterable
arr = [];
for (b of buffer)
arr.push(b);
assert.deepEqual(arr, [1, 2, 3, 4, 5]);
// buffer iterators should be iterable
arr = [];
for (b of buffer[Symbol.iterator]())
arr.push(b);
assert.deepEqual(arr, [1, 2, 3, 4, 5]);
// buffer#values() should return iterator for values
arr = [];
for (b of buffer.values())
arr.push(b);
assert.deepEqual(arr, [1, 2, 3, 4, 5]);
// buffer#keys() should return iterator for keys
arr = [];
for (b of buffer.keys())
arr.push(b);
assert.deepEqual(arr, [0, 1, 2, 3, 4]);
// buffer#entries() should return iterator for entries
arr = [];
for (b of buffer.entries())
arr.push(b);
assert.deepEqual(arr, [
[0, 1],
[1, 2],
[2, 3],
[3, 4],
[4, 5]
]);