node/benchmark/validators/parse-file-mode.js

62 lines
1.1 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const bench = common.createBenchmark(main, {
n: [1e7],
value: [
"'777'",
'0o777',
],
}, {
flags: ['--expose-internals'],
});
function getParseFactory() {
const {
parseFileMode,
} = require('internal/validators');
return (n) => parseFileMode(n, 'n');
}
function main({ n, value }) {
const parse = getParseFactory();
value = value === "'777'" ? '777' : 0o777;
// Warm up.
const length = 1024;
const array = [];
let errCase = false;
for (let i = 0; i < length; ++i) {
try {
array.push(parse(value));
} catch (e) {
errCase = true;
array.push(e);
}
}
bench.start();
for (let i = 0; i < n; ++i) {
const index = i % length;
try {
array[index] = parse(value);
} catch (e) {
array[index] = e;
}
}
bench.end(n);
// Verify the entries to prevent dead code elimination from making
// the benchmark invalid.
for (let i = 0; i < length; ++i) {
assert.strictEqual(typeof array[i], errCase ? 'object' : 'number');
}
}