$defer service should always call $eval after callback finished

Closes #189

src/services.js

@@ -819,12 +819,16 @@ angularServiceInject('$xhr.bulk', function($xhr, $error, $log){
  * @param {function()} fn A function, who's execution should be deferred.
  */
 angularServiceInject('$defer', function($browser, $exceptionHandler) {
+  var scope = this;
+
   return function(fn) {
     $browser.defer(function() {
       try {
         fn();
       } catch(e) {
         $exceptionHandler(e);
+      } finally {
+        scope.$eval();
       }
     });
   };

test/servicesSpec.js

@@ -361,12 +361,41 @@ describe("service", function(){
 
 
     it('should delegate exception to the $exceptionHandler service', function() {
-      $defer(function() { throw "Test Error"; });
+      $defer(function() {throw "Test Error";});
       expect($exceptionHandler).not.toHaveBeenCalled();
 
       $browser.defer.flush();
       expect($exceptionHandler).toHaveBeenCalledWith("Test Error");
     });
+
+
+    it('should call eval after each callback is executed', function() {
+      var eval = this.spyOn(scope, '$eval').andCallThrough();
+
+      $defer(function() {});
+      expect(eval).wasNotCalled();
+
+      $browser.defer.flush();
+      expect(eval).wasCalled();
+
+      eval.reset(); //reset the spy;
+
+      $defer(function() {});
+      $defer(function() {});
+      $browser.defer.flush();
+      expect(eval.callCount).toBe(2);
+    });
+
+
+    it('should call eval even if an exception is thrown in callback', function() {
+      var eval = this.spyOn(scope, '$eval').andCallThrough();
+
+      $defer(function() {throw "Test Error"});
+      expect(eval).wasNotCalled();
+
+      $browser.defer.flush();
+      expect(eval).wasCalled();
+    });
   });
 
 
@@ -543,6 +572,25 @@ describe("service", function(){
         $browser.defer.flush();
         expect(log).toEqual('"+";"+";'); //callback has executed
       });
+
+      it('should call eval after callbacks for both cache hit and cache miss execute', function() {
+        var eval = this.spyOn(scope, '$eval').andCallThrough();
+
+        $browserXhr.expectGET('/url').respond('+');
+        cache('GET', '/url', null, callback);
+        expect(eval).wasNotCalled();
+
+        $browserXhr.flush();
+        expect(eval).wasCalled();
+
+        eval.reset(); //reset the spy
+
+        cache('GET', '/url', null, callback);
+        expect(eval).wasNotCalled();
+
+        $browser.defer.flush();
+        expect(eval).wasCalled();
+      })
     });
 
   });

test/widgetsSpec.js

@@ -571,8 +571,8 @@ describe("widget", function(){
 
       // this one should really be just '1', but due to lack of real events things are not working
       // properly. see discussion at: http://is.gd/ighKk
-      expect(element.text()).toEqual('2');
+      expect(element.text()).toEqual('4');
-      dealoc(scope);
+      dealoc(element);
     });
 
     it('should evaluate onload expression when a partial is loaded', function() {
@@ -587,7 +587,7 @@ describe("widget", function(){
       scope.$inject('$browser').defer.flush();
       expect(element.text()).toEqual('my partial');
       expect(scope.loaded).toBe(true);
-      dealoc(scope);
+      dealoc(element);
     });
   });