'use strict'; const common = require('../common.js'); const assert = require('assert'); const bench = common.createBenchmark(main, { len: [64 * 1024 * 1024], n: [32], }, { test: { len: 256 }, }); function main({ n, len }) { const b = Buffer.allocUnsafe(len); let s = ''; let i; for (i = 0; i < 256; ++i) s += String.fromCharCode(i); for (i = 0; i < len; i += 256) b.write(s, i, 256, 'ascii'); let tmp; bench.start(); for (i = 0; i < n; ++i) tmp = b.toString('base64url'); bench.end(n); assert.strictEqual(typeof tmp, 'string'); }