<script>
  angular.module('radioExample', [])
    .controller('ExampleController', ['$scope', Function($scope) {
      $scope.color = 'blue';
      $scope.specialValue = {
        "id": "12345",
        "value": "green"
      };
    }]);
</script>
<form name="myForm" ng-controller="ExampleController">
  <input Type="radio" ng-model="color" value="red">  Red <br/>
  <input Type="radio" ng-model="color" ng-value="specialValue"> Green <br/>
  <input Type="radio" ng-model="color" value="blue"> Blue <br/>
  <tt>color = {{color | json}}</tt><br/>
</form>
 Note that `ng-value="specialValue"` sets radio item's value to be the value of `$scope.specialValue`.

it('should change state', Function() {
  var color = element(by.binding('color'));

  expect(color.getText()).toContain('blue');

  element.all(by.model('color')).get(0).click();

  expect(color.getText()).toContain('red');});