function test() {

var constructors = [
  'Int8Array',
  'Uint8Array',
  'Uint8ClampedArray',
  'Int16Array',
  'Uint16Array',
  'Int32Array',
  'Uint32Array',
  'Float32Array',
  'Float64Array'
];
var constructor = Object.getPrototypeOf(Int8Array);
var prototype = Object.getPrototypeOf(Int8Array.prototype);
for(var i = 0; i < constructors.length; i+=1) {
  if (!(constructors[i] in global
      && Object.getPrototypeOf(global[constructors[i]]) === constructor
      && Object.getPrototypeOf(global[constructors[i]].prototype) === prototype
      && Object.getOwnPropertyNames(global[constructors[i]].prototype).sort() + ''
        === "BYTES_PER_ELEMENT,constructor")) {
    return false;
  }
}
return true;
      
}

if (!test())
    throw new Error("Test failed");