equality check for arrays with prototype 1.6

buster.js

var config = module.exports

config["node tests"] = {
  tests: [
    "*.spec.js"
  ],
  environment: "node"
}

config["browser tests"] = {
  tests: [
    "*.spec.js"
  ],
  environment: 'browser',
  libs: [
    "prototype.js"
  ]
}

foo.spec.js

if(typeof require === 'function') {
  var buster = require('buster')
}

buster.spec.expose()

describe('array test', function() {
  it('equals arrays', function() {
    expect([1,2]).toEqual([1,2])  
  })
}) 

prototype.js

http://prototypejs.org/assets/2009/8/31/prototype.js