public void LayDanhSachTaiKhoan_TestStatusResponse()
{
Data_Test data_Test = new Data_Test();
var count = data_Test.DemSoLuongTaiKhoan();
//Act
IHttpActionResult actionResult = controller.LayDanhSachTaiKhoan();
var actual_result = actionResult as OkNegotiatedContentResult <List <UserMasterDTO> >;
//Assert
Assert.AreEqual(count, actual_result.Content.Count);
}