Add support for work to be triggered via an event

lib/cylon.js

@@ -21,6 +21,7 @@ var Cylon = module.exports = {
   Logger: Logger,
   Driver: require('./driver'),
   Adaptor: require('./adaptor'),
+  Robot: Robot,
   Utils: Utils,
 
   IO: {

lib/robot.js

@@ -230,11 +230,11 @@ Robot.prototype.initDevices = function(devices) {
 // Returns the result of the work
 Robot.prototype.start = function() {
   var begin = function(callback) {
+    Logger.info('Working.');
+
+    this.emit('work', this);
     this.work.call(this, this);
     this.running = true;
-    this.emit('working');
-
-    Logger.info('Working.');
 
     callback(null, true);
   }.bind(this);

test/specs/robot.spec.js

@@ -316,8 +316,8 @@ describe("Robot", function() {
       expect(robot.work).to.be.called;
     });
 
-    it("emits the 'working' event", function() {
-      expect(robot.emit).to.be.calledWith("working")
+    it("emits the 'work' event", function() {
+      expect(robot.emit).to.be.calledWith("work")
     });
   });