什么是在事务中运行asp.net身份的功能推荐的方式？ [英] What is the recommended way to run asp.net identity functions in transaction?

问题描述

使用asp.net身份<一个href=\"http://stackoverflow.com/questions/18793746/how-can-i-get-early-access-to-upcoming-asp-net-identity-changes\">RTW版本。

Using asp.net identity RTW version.

我需要执行一个事务的几个动作，包括 UserMananger 在函数调用等操作我的的DbContext （例如：创建新的用户，将其添加到组，并执行一些业务逻辑运算）

I need to perform several actions in a transaction, including both UserMananger function calls and other operations on my DbContext (example: create new user, add it to group and perform some business-logic operations).

我应该怎么做呢？

我的思绪随之而来。

的TransactionScope

using (var scope = new TransactionScope(TransactionScopeOption.Required))
{
    // Do what I need
    if (everythingIsOk) scope.Complete();
}

问题是：的UserManager 函数都是异步和的TransactionScope 不是设计与异步/的await工作。 似乎在.Net框架4.5.1 来解决。但是我用Azure网站主办我的项目生成，所以我无法针对4.5.1呢。

The problem is: UserManager functions are all async, and TransactionScope was not designed to work with async/await. It seems to be solved in .Net Framework 4.5.1. But I use Azure Web Sites to host my project builds, so I cannot target 4.5.1 yet.

数据库事务

public class SomeController : Controller
{
    private MyDbContext DbContext { get; set; }
    private UserManager<User> UserManager { get; set; }

    public AccountController()
    {
        DbContext = new MyDbContext()
        var userStore = new UserStore<IdentityUser>(DbContext);
        UserManager = new UserManager<IdentityUser>(userStore);
    }

    public async ActionResult SomeAction()
    {
        // UserManager uses the same db context, so they can share db transaction
        using (var tran = DbContext.Database.BeginTransaction())
        {
            try
            {
                // Do what I need
                if (everythingIsOk)
                    tran.Commit();
                else
                {
                    tran.Rollback();
                }
            }
            catch (Exception)
            {
                tran.Rollback();
            }
        }
    }
}

这似乎工作，但我怎么能单元测试？

That seems to work, but how can I unit-test it?

的UserManager＆LT;＆GT; 构造函数接受 IUserStore＆LT;＆GT; ，这样我就可以很容易地存根它

UserManager<> constructor accepts IUserStore<>, so I can easily stub it.

UserStore＆LT;＆GT; 构造函数接受的DbContext ，不知道我怎么能存根此

UserStore<> constructor accepts DbContext, no idea how I can stub this.

推荐答案

您可以实现可存根出你的单元测试自己的测试用户存储。

You can implement your own test user store that can be stubbed out for your unit test.

如果您要使用的实际EF UserStore在测试中，这也将工作，但它会使用默认DefaultConnection字符串创建数据库。你可以指定一个DatabaseInitializer总是降/重新创建你的测试你的表，如果你想确保干净分贝每一个测试。

If you want to use the actual EF UserStore in your tests, that also will work, but it will be creating a database using the DefaultConnection string by default. You could specify a DatabaseInitializer to always drop/recreate your tables in your tests if you wanted to ensure a clean db for every test.

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