Alexa lambda function is able to execute all intents except custom one?

The launch (New Session), unhandled, and Amazon default intents (cancel, help, stop) are working properly when I test them in the service simulator, but any one that I write doesn't seem to work. Below is an example of a test intent:

var handlers = {
'NewSession': function() {
    this.emit(':tell', 'Hello');

'Test': function() {
    this.emit(':tell','This intent is working');    
},     
'Unhandled': function() {
    this.emit(':tell','Sorry, I don\'t know what to do');    
},   
'AMAZON.HelpIntent': function(){
    this.emit(':ask', 'What can I help you with?', 'How can I help?');
},
'AMAZON.CancelIntent': function(){
    this.emit(':tell', 'Okay');
},
'AMAZON.StopIntent': function(){
      this.emit(':tell', 'Goodbye');
},


exports.handler = function(event,context){
var alexa = Alexa.handler(event,context);
alexa.registerHandlers(handlers);
alexa.execute();
};

The code snippet for the intents:

 "intents": [
  {
    "name": "AMAZON.CancelIntent",
    "samples": []
  },
  {
    "name": "AMAZON.HelpIntent",
    "samples": []
  },
  {
    "name": "AMAZON.StopIntent",
    "samples": []
  },
  {
    "name": "ColorIntent",
    "samples": [],
    "slots": [
  {
    "name": "Test",
    "samples": [
      "Test me"
    ],
    "slots": []

No matter what I do, I can't get the test intent to work and return "This intent is working'. Please help!