C#-测试闭包

我有一个非常简单的方法要测试. _interactionService会弹出一个对话框,询问用户有关删除客户的确认.如果在框中单击相应的按钮,则会调用提供的操作.该操作可操纵上下文并保存更改.保存完成后,将调用另一个操作.

    private void Delete(object entity)
{
    _interactionService.ShowConfirmationBox("Delete?", "Are you sure you want to delete this customer?", () =>
        {
            Customer customer = entity as Customer;
            Context.Attach(customer);
            Context.Delete(customer);
            Context.Save(() => DoSomethingElseWhenSaveComplete);
        });
}

我不知道如何测试这种方法.我嘲笑了服务和上下文,但是如何测试闭包？

解决方法:

如果上下文是模拟的,则可以在测试中使用callback：

Action saveAction = null;
contextMock
  .Setup(c => c.Save(It.IsAny<Action>())
  .Callback<Action>(a => saveAction = a);

// Call delete...

Assert.IsNotNull(saveAction);

saveAction();

// Assert that DoSomethingElseWhenSaveCompleted was done

标签：unit-testing,moq,c
来源： https://codeday.me/bug/20191201/2080855.html