node_modules/fast-deep-equal/benchmark/index.js

'use strict';

const assertDeepStrictEqual = require('assert').deepStrictEqual;
const tests = require('../spec/tests');
const Benchmark = require('benchmark');
const suite = new Benchmark.Suite;


const equalPackages = {
  'fast-deep-equal': require('../index'),
  'nano-equal': true,
  'shallow-equal-fuzzy': true,
  'underscore.isEqual': require('underscore').isEqual,
  'lodash.isEqual': require('lodash').isEqual,
  'deep-equal': true,
  'deep-eql': true,
  'assert.deepStrictEqual': (a, b) => {
    try { assertDeepStrictEqual(a, b); return true; }
    catch(e) { return false; }
  }
};


for (const equalName in equalPackages) {
  let equalFunc = equalPackages[equalName];
  if (equalFunc === true) equalFunc = require(equalName);

  for (const testSuite of tests) {
    for (const test of testSuite.tests) {
      try {
        if (equalFunc(test.value1, test.value2) !== test.equal)
          console.error('different result', equalName, testSuite.description, test.description);
      } catch(e) {
        console.error(equalName, testSuite.description, test.description, e);
      }
    }
  }

  suite.add(equalName, function() {
    for (const testSuite of tests) {
      for (const test of testSuite.tests) {
        if (test.description != 'pseudo array and equivalent array are not equal')
          equalFunc(test.value1, test.value2);
      }
    }
  });
}

console.log();

suite
  .on('cycle', (event) => console.log(String(event.target)))
  .on('complete', function () {
    console.log('The fastest is ' + this.filter('fastest').map('name'));
  })
  .run({async: true});