public void InitializeTest()
{
_mockUsersDBSet = new Mock <DbSet <Users> >();
_mockUsersDBSet.SetSource(UsersDataFactory.GetUsers());
var contextMock = new AppreciationContext();
contextMock.Users = _mockUsersDBSet.Object;
var unitOfWork = new UnitOfWork(contextMock);
var repository = new UsersRepository(unitOfWork);
_userService = new UsersService(repository);
}