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SocialPub/PrivaPub.Tests/Federation/MoveTests.cs
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2026-10-05 18:39:46 +02:00
using MongoDB.Entities;
using PrivaPub.Api.Mastodon.Mappers;
using PrivaPub.Models.User;
using PrivaPub.Tests.Support;
using System.Text.Json.Nodes;
using static PrivaPub.Tests.Support.FederatedSeeds;
namespace PrivaPub.Tests.Federation
{
// An account moving to another (Mastodon's Move), believed as Mastodon believes it: sent by the moving account about
// itself, and the new account naming it among its alsoKnownAs
[Trait("Category", "Integration")]
public sealed class MoveTests : IAsyncLifetime
{
Harness _harness;
public async ValueTask InitializeAsync()
{
Assert.SkipUnless(MongoFixture.Enabled, MongoFixture.Skip);
_harness = await Harness.Start();
}
public async ValueTask DisposeAsync()
{
if (_harness != default)
await _harness.DisposeAsync();
}
// the new account, serving a document that names the old one (or not)
RemoteActor Target(string name, RemoteActor aliasOf)
{
var target = new RemoteActor(_harness.Peer, name);
var document = target.Document();
if (aliasOf != default)
document["alsoKnownAs"] = new JsonArray(aliasOf.Id);
_harness.Peer.Serve(new Uri(target.Id).AbsolutePath, document.ToJsonString());
return target;
}
Task Move(RemoteActor sender, RemoteActor moved, RemoteActor target) =>
_harness.Deliver(sender, "/human-centipede", new JsonObject
{
["id"] = NewId(sender, "moves"), ["type"] = "Move", ["actor"] = sender.Id, ["object"] = moved.Id, ["target"] = target.Id
});
static Task<ForeignAvatar> Stored(RemoteActor actor) =>
DB.Default.Find<ForeignAvatar>().Match(a => a.ActorURI == actor.Id).ExecuteFirstAsync(TestContext.Current.CancellationToken);
[Fact]
public async Task A_move_the_new_account_confirms_shows_the_old_account_moved_there()
{
var token = TestContext.Current.CancellationToken;
var (_, alice) = await _harness.Persona("alice");
var old = new RemoteActor(_harness.Peer, "old");
await Follows(alice.Id, old);
var target = Target("new", aliasOf: old);
await Move(old, old, target);
var stored = await Stored(old);
Assert.Equal(target.Id, stored.MovedToURL);
var account = await new MastodonMapper(_harness.Db, _harness.Local).Account(stored.ID, token);
Assert.Equal(target.Name, account.Moved?.Username);
Assert.Contains(_harness.Ledger.Of("in"), e => e.Activity == "Move" && e.Reason == "moved");
}
[Fact]
public async Task A_move_the_new_account_does_not_confirm_or_someone_else_sends_changes_nothing()
{
var (_, alice) = await _harness.Persona("alice");
var old = new RemoteActor(_harness.Peer, "old");
var stranger = new RemoteActor(_harness.Peer, "stranger");
await Follows(alice.Id, old);
var unconfirmed = Target("new", aliasOf: default);
var hijack = Target("hijack", aliasOf: stranger);
await Move(old, old, unconfirmed);
await Move(stranger, old, hijack);
Assert.Null((await Stored(old)).MovedToURL);
Assert.Equal(new[] { "not-aliased", "not-self" }, _harness.Ledger.Of("in").Where(e => e.Activity == "Move").Select(e => e.Reason));
}
}
}