c# - UserManager.CreateAsync 挂起从单元测试而不是 Postman 执行

Question

我现在真的很困惑。因此，我一直在开发 Web API 并对项目进行单元测试，并且最近对许多 Controller 进行了更改，但完全保持 AccountController 不变。在我的 AccountController 中，我有函数 Register() ，在过去的 2 个月里每次我测试时它都运行良好。现在突然之间，当我进入注册并打电话时，

IdentityResult result = await UserManager.CreateAsync(user, model.Password);

我的程序挂起并且不会恢复。我测试了一些东西，这只发生在从我的单元测试调用时(也没有改变)，当我用完全相同的 JSON 从 Postman 调用 Register 时，它工作得很好。

注册API函数

// POST api/Account
[AllowAnonymous]
public async Task<IHttpActionResult> Register(RegisterBindingModel model)
{
    if (!ModelState.IsValid)
    {
        return BadRequest(ModelState);
    }

    var user = new ApplicationUser() { UserName = model.UserName, Email = model.Email, Active = true, CreationDate = DateTime.Now };

    IdentityResult result = await UserManager.CreateAsync(user, model.Password);

    if (!result.Succeeded)
    {
        return GetErrorResult(result);
    }

    return Ok();
}

测试函数

[TestMethod]
public void Register_Pass()
{
    // Arrange & Act
    var db = new WizardSwearsDB();

    new DBCleanup().RemoveRegisteredUser(userName);
    string apiCall = "";
    new
    {
        UserName = userName,
        Email = email,
        Password = password,
        ConfirmPassword = password
    }.Post(baseUrl + apiCall);

    var user = (from u in db.AspNetUsers
                where u.UserName == userName
                select u).FirstOrDefault();

    // Assert
    Assert.IsNotNull(user);
    Assert.AreEqual(userName, user.UserName);
}

JSON 发布功能

public static void Post(this object obj, string url, string securityToken = null)
{
    var request = WebRequest.Create(url);
    obj.Request<string>(url, postJsonRequestBuilder, null, securityToken);
}

private static Func<string, object, string, WebRequest> postJsonRequestBuilder = (url, o, st) => jsonRequestBuilder(url, o, "POST", st);

private static Func<string, object, string, string, WebRequest> jsonRequestBuilder = delegate(string url, object obj, string method, string securityToken)
{
    WebRequest request = WebRequest.Create(url);
    if (!string.IsNullOrEmpty(securityToken)) request.Headers.Add("Authorization", string.Format("Bearer {0}", securityToken));
    request.Method = method;
    if (obj != null)
    {
        request.ContentType = "application/json";
        var payload = encoding.GetBytes(JsonConvert.SerializeObject(obj));
        request.ContentLength = payload.Length;
        using (var stream = request.GetRequestStream())
        {
            stream.Write(payload, 0, payload.Length);
        }
    }
    return request;
};

删除注册用户功能和删除员工功能

public void RemoveRegisteredUser(string userName)
{
    // Open up a connection to the database
    var db = new WizardSwearsDB();

    // Get the user from the ASPNetUsers table
    var dbUserASP = (from b in db.AspNetUsers
                    where b.UserName == userName
                    select b).FirstOrDefault();


    // Remove the user from both tables and save changes
    if (dbUserASP != null)
    {
        db.AspNetUsers.Remove(dbUserASP);
        db.SaveChanges();
    }

    RemoveEmployee(userName);
}

public void RemoveEmployee(string userName)
{
    // Open up a connection to the database
    var db = new WizardSwearsDB();

    // Get the user from the ASPNetUsers table
    var employee = (from b in db.Employees
                    where b.UserName == userName
                    select b).FirstOrDefault();

    // Remove the user from both tables and save changes
    if (employee != null)
    {
        db.Employees.Remove(employee);
        db.SaveChanges();
    }
}

所以这些函数都没有发生任何变化，我猜想它必须对 await 做些什么，但我就是不明白为什么它会这样。

Answer 1

刚刚解决了这个问题。完全重新启动了我的计算机和 Visual Studio，瞧。在旁注中，任何人都知道为什么这解决了这个问题？也许只是 Visual Studio 错误？