[AtlasTheory]
    [InlineData(false)]
    [InlineData(true)]
    public async Task CreateMissingVectorIndexes_detects_vector_index_on_second_owned_entity(bool async)
    {
        var collection = database.CreateCollection<EntityWithTwoOwnedTypes>(values: async);
        using var db = SingleEntityDbContext.Create(collection,
            b => b.Entity<EntityWithTwoOwnedTypes>(b =>
            {
                b.OwnsOne(e => e.First);
                b.OwnsOne(e => e.Second)
                    .HasIndex(e => e.Doubles)
                    .IsVectorIndex(VectorSimilarity.Cosine, 2);
            }));
        var options = new MongoDatabaseCreationOptions(CreateMissingVectorIndexes: false, WaitForVectorIndexes: false);
        var bsonCollection = database.GetCollection<BsonDocument>(collection.CollectionNamespace);
        if (async)
        {
            await db.Database.EnsureCreatedAsync(options);
            Assert.Empty(bsonCollection.SearchIndexes.List().ToList());
            await db.Database.CreateMissingVectorIndexesAsync();
            await db.Database.WaitForVectorIndexesAsync();
        }
        else
        {
            db.Database.EnsureCreated(options);
            Assert.Empty(bsonCollection.SearchIndexes.List().ToList());
            db.Database.CreateMissingVectorIndexes();
            db.Database.WaitForVectorIndexes();
        }
        var indexes = bsonCollection.SearchIndexes.List().ToList();
        var index = Assert.Single(indexes);
        var fields = index["latestDefinition"]["fields"].AsBsonArray;
        Assert.Equal("DoublesVectorIndex", index["name"].AsString);
        Assert.Equal("vector", fields[0]["type"].AsString);
        Assert.Equal("Second.Doubles", fields[0]["path"].AsString);
        Assert.Equal(2, fields[0]["numDimensions"].AsInt32);
        Assert.Equal("cosine", fields[0]["similarity"].AsString);
    }