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'use strict';
const common = require('../common');
const bench = common.createBenchmark(main, {
type: ['one_byte', 'two_bytes', 'three_bytes', 'four_bytes'],
encoding: ['utf8', 'base64'],
repeat: [1, 2, 16, 256], // x16
n: [4e6],
});
// 16 chars each
const chars = {
one_byte: 'hello brendan!!!',
two_bytes: 'ΰαβγδεζηθικλμνξο',
three_bytes: '挰挱挲挳挴挵挶挷挸挹挺挻挼挽挾挿',
four_bytes: '𠜎𠜱𠝹𠱓𠱸𠲖𠳏𠳕𠴕𠵼𠵿𠸎𠸏𠹷𠺝𠺢',
};
function getInput(type, repeat, encoding) {
const original = (repeat === 1) ? chars[type] : chars[type].repeat(repeat);
if (encoding === 'base64') {
Buffer.from(original, 'utf8').toString('base64');
}
return original;
}
function main({ n, repeat, encoding, type }) {
const data = getInput(type, repeat, encoding);
const expected = Buffer.byteLength(data, encoding);
let changed = false;
bench.start();
for (let i = 0; i < n; i++) {
const actual = Buffer.byteLength(data, encoding);
if (expected !== actual) { changed = true; }
}
bench.end(n);
if (changed) {
throw new Error('Result changed during iteration');
}
}
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