public async Task CanRemoveExternalLogin()
{
// 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 guid = Guid.NewGuid();
var userName = $"{guid}";
var email = $"{guid}@example.com";
// Act
var index = await UserStories.RegisterNewUserAsync(client, email, "!TestPassword1");
var linkLogin = await UserStories.LinkExternalLoginAsync(index, email);
await UserStories.RemoveExternalLoginAsync(linkLogin, email);
// RefreshSignIn generates a new security stamp claim
AssertClaimsNotEqual(principals[0], principals[1], "AspNet.Identity.SecurityStamp");
}