// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace Microsoft.AspNetCore.Http.Features;
 
public class FakeResponseFeature : HttpResponseFeature
{
    List<Tuple<Func<object, Task>, object>> _onCompletedCallbacks = new List<Tuple<Func<object, Task>, object>>();
 
    public override void OnCompleted(Func<object, Task> callback, object state)
    {
        _onCompletedCallbacks.Add(new Tuple<Func<object, Task>, object>(callback, state));
    }
 
    public async Task CompleteAsync()
    {
        var callbacks = _onCompletedCallbacks;
        _onCompletedCallbacks = null;
        foreach (var callback in callbacks)
        {
            await callback.Item1(callback.Item2);
        }
    }
}