benchRunner

#!/usr/bin/env node

var Benchmark = require('benchmark');
var Table = require('cli-table');
var fs = require('fs');
var isBench = /\.bench\.js$/;

function getTable(name) {
  return new Table({
    head: [name, 'Hertz', 'Margin of Error'],
    colWidths: [24, 24, 24]
  });
}

function prettyHz(hz) {
  return Benchmark.formatNumber(hz.toFixed(hz < 100 ? 2 : 0));
}

function prettyMoe(moe) {
  return moe.toFixed(2) + '%';
}

fs.readdirSync('./lib/bench').forEach(function(file) {
  var test, table;
  if (isBench.test(file)) {
    test = require('../lib/bench/' + file);
    table = getTable(test.name);
    var suite = Benchmark.Suite(test.name, {
      onComplete: function() { console.log(table.toString()); }
    });
    Object.keys(test.tests).forEach(function(k) {
      suite.add(k, test.tests[k], {
        onComplete: function(vo) {
          table.push([
            vo.target.name,
            prettyHz(vo.target.hz),
            prettyMoe(vo.target.stats.rme)
          ]);
        }
      });
    });
    suite.run();
  }
});