GetAll() private method

private GetAll ( ) : IEnumerable
return IEnumerable
        public void DeleteOk()
        {
            var controller = new TodoController(new MemoryTodoRepository());

            controller.DeleteItem(1);    
            Assert.Equal(0, controller.GetAll().Count());
        }     
 public void GetAllOk()
 {
     var controller = new TodoController(new MemoryTodoRepository());
     
     Assert.Equal(1, controller.GetAll().Count());
 }