Haha-Yes/node_modules/buffer/test/node/test-buffer-concat.js
2018-09-09 21:20:36 +02:00

30 lines
904 B
JavaScript

'use strict';
if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false;
var Buffer = require('../../').Buffer;
var common = {};
var assert = require('assert');
var zero = [];
var one = [ new Buffer('asdf') ];
var long = [];
for (var i = 0; i < 10; i++) long.push(new Buffer('asdf'));
var flatZero = Buffer.concat(zero);
var flatOne = Buffer.concat(one);
var flatLong = Buffer.concat(long);
var flatLongLen = Buffer.concat(long, 40);
assert(flatZero.length === 0);
assert(flatOne.toString() === 'asdf');
// A special case where concat used to return the first item,
// if the length is one. This check is to make sure that we don't do that.
assert(flatOne !== one[0]);
assert(flatLong.toString() === (new Array(10 + 1).join('asdf')));
assert(flatLongLen.toString() === (new Array(10 + 1).join('asdf')));
assert.throws(function() {
Buffer.concat([42]);
}, TypeError);
// console.log('ok');