namespace AcDream.Core.Net.Tests;

/// <summary>
/// Campaign N Slice N6 fold-in (N5 review LOW-5): test classes that mutate
/// process-global state — the <c>NetDiagnostics</c> typed toggles
/// (<c>ProbeNet</c>, <c>NetDropPercent</c>, ...) or <c>Console.SetOut</c> —
/// must never run in parallel with any test constructing a
/// <c>WorldSession</c>, whose production paths read those statics (the
/// public constructor's <c>LossyTransportDecorator.WrapIfConfigured</c>
/// seam, the probe-gated <c>[net-tick]</c>/<c>[net-final]</c> console
/// emission in <c>Tick</c>/<c>Dispose</c>).
///
/// <para>
/// <c>DisableParallelization = true</c> makes xunit run this collection's
/// classes strictly serially, AFTER every parallel collection has finished
/// — never alongside anything. Apply
/// <c>[Collection(NetProcessStaticsCollection.Name)]</c> to any new test
/// class that touches those statics.
/// </para>
/// </summary>
[CollectionDefinition(Name, DisableParallelization = true)]
public sealed class NetProcessStaticsCollection
{
    public const string Name = "net process statics";
}