public async Task RemoveTodo_ValidTodo_NoContent()
        {
            // Arrange
            var tId     = 15;
            var service = new MockTodoService
            {
                MRemoveTodoByIdAsync = (todoId, userId) => { }
            };
            var controller = new TodoController(service);

            MockClaims.AddUserIdClaim(controller, MockApplicationUsers.Get(0).Id);

            // Act
            var result = await controller.RemoveTodo(tId) as NoContentResult;

            // Assert
            Assert.NotNull(result);
            Assert.Equal(204, result.StatusCode);
        }