feat(jqLite): support isDefaultPrevented for triggerHandler dummies

src/jqLite.js

@@ -953,7 +953,12 @@ forEach({
     eventData = eventData || [];
 
     var event = [{
-      preventDefault: noop,
+      preventDefault: function() {
+        this.defaultPrevented = true;
+      },
+      isDefaultPrevented: function() {
+        return this.defaultPrevented === true;
+      },
       stopPropagation: noop
     }];
 

test/jqLiteSpec.js

@@ -1690,6 +1690,20 @@ describe('jqLite', function() {
       data = pokeSpy.mostRecentCall.args[1];
       expect(data.hello).toBe("world");
     });
+
+    it('should mark event as prevented if preventDefault is called', function() {
+      var element = jqLite('<a>poke</a>'),
+          pokeSpy = jasmine.createSpy('poke'),
+          event;
+
+      element.on('click', pokeSpy);
+      element.triggerHandler('click');
+      event = pokeSpy.mostRecentCall.args[0];
+
+      expect(event.isDefaultPrevented()).toBe(false);
+      event.preventDefault();
+      expect(event.isDefaultPrevented()).toBe(true);
+    });
   });