new TestSuite("Http Tests", {
  testExists : function(t){
    t.assert(typeof(Utils)=="object",  "Utils not defined");
    t.assert(typeof(Utils.http)=="object",  "Utils.http not defined");
    t.assert(typeof(Utils.http.createXMLHttpRequest)== "function",  "Utils.http.createXMLHttpRequest not defined");
    t.assert(typeof(Utils.http.get) == "function",  "Utils.http.get not defined");
  },
  
  testCreateXMLHttpRequest : function(t){
    var xhr = Utils.http.createXMLHttpRequest();
    t.assert(xhr != undefined, "xhr is not defined");
    t.assert(typeof(xhr.open) == "function", "XHR does not have an open function");
  },
  
  testHttpGet : function(t){
    var mockControl = new MockControl();
		xhr = mockControl.createMock(Utils.http.createXMLHttpRequest());
		var oldXHRFn = Utils.http.createXMLHttpRequest;
		Utils.http.createXMLHttpRequest = function(){ return xhr; }

		xhr.expects().open("GET", "URI", true);
		xhr.expects().send(null);
		
    var callback = function(){ };
    var errback = function(){ };

    Utils.http.get("URI", callback, errback);

		Utils.http.createXMLHttpRequest = oldXHRFn;

		mockControl.verify();
		

  },
  
  testHttpGetSuccess : function(t){
    var mockControl = new MockControl();
		xhr = mockControl.createMock(Utils.http.createXMLHttpRequest());
		var oldXHRFn = Utils.http.createXMLHttpRequest;
		Utils.http.createXMLHttpRequest = function(){ return xhr; }
		
		xhr.expects().open("GET", "URI", true);
		xhr.expects().send(null);
		var callbackCalls = 0;
		
    var callback = function(req){ 
       callbackCalls++; 
       t.assert(req == xhr, "Callback called with wrong param " + req); 
    };
   
    var errback = function(){ t.fail("Errback called"); };

    Utils.http.get("URI", callback, errback);

    xhr.readyState = 2;
    xhr.onreadystatechange();

    xhr.readyState = 4;
    xhr.status = 200;
    xhr.onreadystatechange();

		Utils.http.createXMLHttpRequest = oldXHRFn;
		mockControl.verify();
		t.assert(callbackCalls==1, "Expected callback to be called once - called " + callbackCalls + " times");
		
  },

  testHttpGetFailure : function(t){
    var mockControl = new MockControl();
		xhr = mockControl.createMock(Utils.http.createXMLHttpRequest());
		Utils.http.createXMLHttpRequest = function(){ return xhr; }

		xhr.expects().open("GET", "URI", true);
		xhr.expects().send(null);
		var errbackCalls = 0;
		
    var errback = function(req){ 
       errbackCalls++; 
       t.assert(req == xhr, "errback called with wrong param " + req); 
    };
   
    var callback = function(){ t.fail("callback called"); };

    Utils.http.get("URI", callback, errback);

    xhr.readyState = 2;
    xhr.onreadystatechange();

    xhr.readyState = 4;
    xhr.status = 404;
    xhr.onreadystatechange();

		mockControl.verify();
		t.assert(errbackCalls==1, "Expected errback to be called once - called " + errbackCalls + " times");
  },  
  
  testScriptRequest : function(t){
    var scriptId = Utils.http.scriptRequest("URI", "jsonp", function(){ /* Callback */}, function(){ /* Errback */ })
    var continuation = t.continueWithTimeout(function(){
      var scriptEl = document.getElementById(scriptId);
      t.assert(scriptEl, "scriptEl is undefined");   
      t.assert(scriptEl.getAttribute('type') == 'text/javascript', "Wrong type - " + scriptEl.getAttribute('type'));
      t.assert(scriptEl.getAttribute('src') == 'URI&jsonp=Utils.http.scriptRequestCallback("'+scriptId+'")', "Wrong src - " + scriptEl.getAttribute('src'));
    }, 100);
    window.setTimeout(continuation, 1);
  },
  
  testScriptRequestCallback : function(t){
     var response = { "data" : "test" }
     var continuation = t.continueWithTimeout(function(t, data){
        t.assert(data.data == "test", "Invalid data " + data.toSource());
        
        var scriptEl = document.getElementById(scriptId);
        t.assert(!scriptEl, "scriptEl has not been removed");   
     }, 100);
     
     var scriptId = Utils.http.scriptRequest("URI", "jsonp", continuation, function(){ throw new Error("Errback should not be called") })
      window.setTimeout(function(){
        Utils.http.scriptRequestCallback(scriptId)(response); 
      }, 1);
  },
  
  testScriptRequestErrback : function(t){
     var continuation = t.continueWithTimeout(function(){
        var scriptEl = document.getElementById(scriptId);
        t.assert(!scriptEl, "scriptEl has not been removed");   
     }, 100);
     
     var scriptId = Utils.http.scriptRequest("URI", "jsonp", function(){ throw new Error("Callback should not be called") }, continuation, 10)
  },
  
  
  
});