Javascript interfaces revisited 1

interface-1.js

var Dog = [
  "bark", "eat", "defecate"
];
var Poodle = function(name) { //implements Dog
  this.name = name;
};
Poodle.prototype = {
  bark: function() {},
  eat: function() {},
  defecate: function() {}
};

YUI().use("test", function(Y) {     
  var testCase = new Y.Test.Case({
    
    name: "Poodle Test",
    
    testInterface: function() {
      Y.Assert.isImplemented(Dog, Poodle.prototype, "Poodle does not implement Dog");
    },
  
    //more tests...
  });
  
  Y.Test.Runner.add(testCase);
  Y.Test.Runner.run();  
});