Completing tests for map handlers.

test/spec/ol/handler/Drag.test.js

@@ -3,15 +3,71 @@ describe('ol.handler.Drag', function() {
 
     beforeEach(function() {
         map = new ol.Map();
-        elt = goog.dom.createDom('div');
+        elt = new goog.events.EventTarget();
+        map.viewport_ = elt;
+        listener = {fn: function() {}};
+        spyOn(listener, 'fn');
     });
 
-    describe('create a drag handler', function() {
+    describe('creating a drag handler', function() {
 
         it('returns an ol.handler.Drag instance', function() {
-            var handler = new ol.handler.Drag(map, elt, {});
+            var handler = new ol.handler.Drag(map, {});
             expect(handler).toBeA(ol.handler.Drag);
         });
 
     });
+    
+    describe('dispatching events', function() {
+        
+        it('dragstart, drag and dragend events', function() {
+            var handler = new ol.handler.Drag(map, {});
+            goog.events.listen(map, 'dragstart', listener.fn);
+            goog.events.listen(map, 'drag', listener.fn);
+            goog.events.listen(map, 'dragend', listener.fn);
+            
+            handler.dragger_.dispatchEvent({type: 'start'});
+            handler.dragger_.dispatchEvent({type: 'drag'});
+            handler.dragger_.dispatchEvent({type: 'end'});
+            
+            expect(listener.fn.calls[0].args[0].type).toBe('dragstart');
+            expect(listener.fn.calls[1].args[0].type).toBe('drag');
+            expect(listener.fn.calls[2].args[0].type).toBe('dragend');
+        });
+        
+        it('sets the dragged state during a drag sequence', function() {
+            var states = {};
+            var handler = new ol.handler.Drag(map, states);
+            
+            handler.dragger_.dispatchEvent({type: 'drag'});
+            expect(states.dragged).toBe(true);
+            
+            handler.dragger_.dispatchEvent({type: 'start'});
+            expect(states.dragged).toBe(false);
+        });
+        
+        it('sets deltaX and deltaY on the ol.event.MapEvent', function() {
+            var handler = new ol.handler.Drag(map, {});
+            goog.events.listen(map, 'drag', listener.fn);
+
+            handler.dragger_.dispatchEvent({type: 'start', clientX: 2, clientY: 4});
+            handler.dragger_.dispatchEvent({type: 'drag', clientX: 1, clientY: 2});
+            handler.dragger_.dispatchEvent({type: 'drag', clientX: 2, clientY: 4});
+
+            expect(listener.fn.calls[0].args[0].deltaX).toBe(-1);
+            expect(listener.fn.calls[0].args[0].deltaY).toBe(-2);
+            expect(listener.fn.calls[1].args[0].deltaX).toBe(1);
+            expect(listener.fn.calls[1].args[0].deltaY).toBe(2);
+        });
+
+        it('calls the default action on the default control', function() {
+            var control = new ol.control.DefaultControl();
+            spyOn(control, 'defaultDrag');
+            map.setDefaultControl(control);
+            var handler = new ol.handler.Drag(map, {});
+            
+            handler.dragger_.dispatchEvent({type: 'drag'});
+            expect(control.defaultDrag).toHaveBeenCalled();
+        });
+    });
 });