public async Task EditTodoAsync_NonExistingTodo_TodoNotFoundException() { // Arrange var userId = MockApplicationUsers.Get(0).Id; var model = new EditTodoViewModel { Id = 0, Due = DateTime.Now, Description = "Take to the sewers, in a clown costume" }; // Act // Assert await Assert.ThrowsAsync <TodoNotFoundException>(() => _service.EditTodoAsync(model, userId)); }