fix(input): check scope.$$phase only on $rootScope

Author: shahata

src/ng/directive/input.js

@@ -522,7 +522,7 @@ function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
     // a row.
     var revalidate = validity && ctrl.$$hasNativeValidators;
     if (ctrl.$viewValue !== value || (value === '' && revalidate)) {
-      if (scope.$$phase) {
+      if (scope.$root.$$phase) {
         ctrl.$setViewValue(value);
       } else {
         scope.$apply(function() {

test/ng/directive/inputSpec.js

@@ -580,19 +580,30 @@ describe('input', function() {
     });
 
     if (!_jqLiteMode) {
-      it('should not cause the double $digest when triggering an event using jQuery', function() {
-        $sniffer.hasEvent = function(eventName) {
-          return eventName !== 'input';
-        };
+      describe('double $digest when triggering an event using jQuery', function() {
+        function run() {
+          $sniffer.hasEvent = function(eventName) {
+            return eventName !== 'input';
+          };
+
+          compileInput('<input type="text" ng-model="name" name="alias" ng-change="change()" />');
+
+          scope.field = 'fake field';
+          scope.$watch('field', function() {
+            // We need to use _originalTrigger since trigger is modified by Angular Scenario.
+            inputElm._originalTrigger('change');
+          });
+          scope.$apply();
+        }
 
-        compileInput('<input type="text" ng-model="name" name="alias" ng-change="change()" />');
+        it('should not cause the double $digest with non isolate scopes', function() {
+          run();
+        });
 
-        scope.field = 'fake field';
-        scope.$watch('field', function() {
-          // We need to use _originalTrigger since trigger is modified by Angular Scenario.
-          inputElm._originalTrigger('change');
+        it('should not cause the double $digest with isolate scopes', function() {
+          scope = scope.$new(true);
+          run();
         });
-        scope.$apply();
       });
     }
   });