JSTests/test262/harness/compareArray.js

// Copyright (C) 2017 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: |
    Compare the contents of two arrays
---*/

function compareArray(a, b) {
  if (b.length !== a.length) {
    return false;
  }

  for (var i = 0; i < a.length; i++) {
    if (b[i] !== a[i]) {
      return false;
    }
  }
  return true;
}

assert.compareArray = function(actual, expected, message) {
  assert(compareArray(actual, expected),
         'Expected [' + actual.join(', ') + '] and [' + expected.join(', ') + '] to have the same contents. ' + message);
};