Code duplication in AngularJS Application

I recently started working the AngularJS MVC framework. I was previously working with GWT. No here is the problem that I noticed working with AngularJS. When I start implementing a new Controller Acceptance test suite is created at the beginning, I practice TDD as much as I can, then after write you first acceptance test you start write unit tests and step by step implement your controller.The problem, as I see it, is the your objects fields should be the same in at lease 4 places in unit tests, in E2E tests, in Controller and View. This is a nightmare to chase. I will give a simple example of what I mean. I wish I am wrong and my approach of work is wrong and if so I hope some one to correct me.

// in controller 

     $scope.newUsers = new Array(); // <-- $scope.newUsers should be the same array In unit tests.

        $scope.addUserTobeCreated = function (user) {// <-- functions should be added in the view too
            $scope.newUsers.push(user);
        };

        $scope.createUsers = function () {
            $http.post("some url", $scope.newUsers).success(function () {
              // do something 
            });
        };

// in view 
  <label class="form-input-label">name:</label>
  <input type="text" size="15" maxlength="15" class="form-input-field  ipInput"  ng-model="user.name"> 
<label class="form-input-label">age:</label>
<input type="text" size="15" maxlength="15" class="form-input-field  ipInput"  ng-model="user.age">
<label class="form-input-label">position:</label>
<input type="text" size="15" maxlength="15" class="form-input-field  ipInput"  ng-model="user.position">
   <ul>
        <li ng-repeat="user in newUsers">
            Name:{{user.name}}, Age:{{user.age}}

        </li>
    </ul>

// in unit test

  it("should add user to new users array to be added", function () {
        var user = {name:"ivan"};
        scope.addUserToBeCreated(user);
        expect(scope.newUsers.length).toBe(1); // <-- we have "newUsers" in 4 palces until now. Controller, unit tests, and view 2 times ! . 
        // do some assertions ... 
    });

If I want to change the newUsers array name I have to do it in 4 places !.

Also, consider passing an object to a server that accepts a JSON objects. On the server I have to map the JSON to my server objects. with frameworks like sitebircks it is very easy to do so. But, again a have to keep classes names consistent in order to be able to deserialize objects coming from the client. Am I the only one who sees this problem ?.Correct me If I am mistaken. Or its just me who really have this problem. If that is the case please guide me to the correct way to work with JS frameworks.
Thanks for replies.