How to Construct IdentityResult With Success == true

Question

I have a class with Microsoft.AspNet.Identity.UserManager injected, and I want to expect the userManager.CreateAsync(user, password) method to return a Task where the IdentityResult.Succeeded = true. However, the only available constructors for IdentityResult are failure constructors that will cause Succeeded property to be false.

How does one create an IdentityResult that has Succeeded == true? IdentityResult doesn't implement an interface and Succeeded isn't virtual so I don't see any obvious ways of creating a mock object through Rhino Mocks (which i'm using as my mocking framework).

My method does something like the below. Providing this example to show why I might want to mock this.

  public async Task<IdentityResult> RegisterUser(NewUser newUser)
    {
        ApplicationUser newApplicationUser = new ApplicationUser()
        {
            UserName = newUser.UserName,
            Email = newUser.Email
        };

        IdentityResult identityResult = await applicationUserManager.CreateAsync(newApplicationUser, newUser.Password);

        if(identityResult.Succeeded)
        {
            someOtherDependency.DoSomethingAmazing();
        }

        return identityResult;
    }

I'm trying to write a unit test that ensures that someOtherDependency.DoSomethingAmazing() is called if identityResult.Succeeded is true. Thanks for any help!

Answer 1

Would the static IdentityResult.Success property work? http://msdn.microsoft.com/en-us/library/microsoft.aspnet.identity.identityresult.success(v=vs.108).aspx

Edit: To add some more detail, it seems what you want to do is get your mocked CreateAsync to return an IdentityResult where Suceeded is true. For that I would just return IdentityResult.Success from your mock. There's shouldn't be a need to mock the IdentityResult itself.

Answer 2

To make the Succeeded property equal to True use either of these examples:

return IdentityResult.Success;
IdentityResult result = IdentityResult.Success;

Answer 3

Further more, to make the Success property returns true

return Identity.Success;

Then in your implementing code, call the implementing method like this

var result = await RegisterUser(newUser).Result
if(result.Succeeded)
{
  //do something
}

Answer 4

Approach is different for Microsoft.AspNet.Identity and Microsoft.AspNetCore.Identity. Bellow I provided solutions for both:

1. If you are using Microsoft.AspNet.Identity namespace please check following approach:

   In my example I mocked IdentityResult.Success in following way:

   First, IdentityResult has protected constructor:

   protected IdentityResult(bool success);
   

   Protected constructor can be accessed from inherited class if you implement like this:

       public class IdentityResultMock : IdentityResult
       {
           public IdentityResultMock(bool succeeded) : base(succeeded) { }
       }
   

   Second, in my unit test I configured ResetPasswordAsync() to return identityResult like in below:

   var identityResult = new IdentityResultMock(true);
   _mockUserManager.Setup(e => e.ResetPasswordAsync(user.Id, model.Code, model.Password)).ReturnsAsync(identityResult);
   

   Third, in my controller's action ResetPasswordAsync() will returns result with Successed == true:

   var result = await userManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
   

   Basically I implemented new class which inherited IdentityResult and used that in my test cases.

2. If you are using using Microsoft.AspNetCore.Identity namespace then try following approach:

   IdentityResult in this case does't have protected constructor but it has protected property Succeeded which can be accessed within class who inherited IdentityResult.

   We can achieve like in following example:

   public class IdentityResultMock : IdentityResult
   {
       public IdentityResultMock(bool succeeded = false)
       {
           this.Succeeded = succeeded;
       }
   }
   
   var result = new IdentityResultMock(true);
   Console.WriteLine(result.Succeeded);
   
   result.Succeeded = true; // This is not allowed! Please use constructor.
   

Answer 5

var responseTask = System.Threading.Tasks.Task.FromResult(IdentityResult.Success);

_mocAuthService.Stub(s => s.RegisterUser(null)).IgnoreArguments().Return(responseTask);

If you need a successful IdentityResult then all you need to do is call the Success property. This will give you a successful IdentityResult.

https://msdn.microsoft.com/en-us/library/microsoft.aspnet.identity.identityresult(v=vs.108).aspx