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'use strict';
var common = require('../common.js');
var StringDecoder = require('string_decoder').StringDecoder;
var bench = common.createBenchmark(main, {
encoding: ['ascii', 'utf8', 'base64-utf8', 'base64-ascii'],
inlen: [32, 128, 1024],
chunk: [16, 64, 256, 1024],
n: [25e4]
});
var UTF_ALPHA = 'Blåbærsyltetøy';
var ASC_ALPHA = 'Blueberry jam';
function main(conf) {
var encoding = conf.encoding;
var inLen = conf.inlen | 0;
var chunkLen = conf.chunk | 0;
var n = conf.n | 0;
var alpha;
var chunks = [];
var str = '';
var isBase64 = (encoding === 'base64-ascii' || encoding === 'base64-utf8');
var i;
if (encoding === 'ascii' || encoding === 'base64-ascii')
alpha = ASC_ALPHA;
else if (encoding === 'utf8' || encoding === 'base64-utf8')
alpha = UTF_ALPHA;
else
throw new Error('Bad encoding');
var sd = new StringDecoder(isBase64 ? 'base64' : encoding);
for (i = 0; i < inLen; ++i) {
if (i > 0 && (i % chunkLen) === 0 && !isBase64) {
chunks.push(new Buffer(str, encoding));
str = '';
}
str += alpha[i % alpha.length];
}
if (str.length > 0 && !isBase64)
chunks.push(new Buffer(str, encoding));
if (isBase64) {
str = new Buffer(str, 'utf8').toString('base64');
while (str.length > 0) {
var len = Math.min(chunkLen, str.length);
chunks.push(new Buffer(str.substring(0, len), 'utf8'));
str = str.substring(len);
}
}
var nChunks = chunks.length;
bench.start();
for (i = 0; i < n; ++i) {
for (var j = 0; j < nChunks; ++j)
sd.write(chunks[j]);
}
bench.end(n);
}
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