public async Task CanResetAuthenticator()
{
// Arrange
var principals = new List <ClaimsPrincipal>();
void ConfigureTestServices(IServiceCollection services) =>
services
.SetupTestThirdPartyLogin()
.SetupGetUserClaimsPrincipal(user => principals.Add(user), IdentityConstants.ApplicationScheme);
var server = ServerFactory
.WithWebHostBuilder(whb => whb.ConfigureTestServices(ConfigureTestServices));
var client = server.CreateClient();
var newClient = server.CreateClient();
var userName = $"{Guid.NewGuid()}@example.com";
var password = $"!Test.Password1$";
// Act
var loggedIn = await UserStories.RegisterNewUserAsync(client, userName, password);
var showRecoveryCodes = await UserStories.EnableTwoFactorAuthentication(loggedIn);
var twoFactorKey = showRecoveryCodes.Context.AuthenticatorKey;
// Use a new client to simulate a new browser session.
await UserStories.AcceptCookiePolicy(newClient);
var index = await UserStories.LoginExistingUser2FaAsync(newClient, userName, password, twoFactorKey);
await UserStories.ResetAuthenticator(index);
// RefreshSignIn generates a new security stamp claim
AssertClaimsNotEqual(principals[1], principals[2], "AspNet.Identity.SecurityStamp");
}