shieldjs

var ShieldJS = function(options) {
  // Private variables
  var alphabetically,
    ordered,
    var1,
    var2;

  // Construtor
  function constructor(o) {
    // Process options, etc.
  }(options);
  
  // Internal functions
  var doSomething = function() {
    
  };
  
  // Public functions and getters/setters
  var getVar1 = function() {
    return var1;
  };
  
  var setVar1 = function(v) {
    var1 = v;
  };
  
  var sayHello = function(name) {
    return "Hello, " + name;
  };
  
  return {
    getVar1: getVar1,
    setVar1: setVar1,
    sayHello: sayHello
  }
}

var s = new ShieldJS();
var greeting = s.sayHello("occ");

How would we test internal functions? Should we?