using AcDream.Core.Net;
using Xunit;

namespace AcDream.Core.Net.Tests;

/// <summary>
/// #2 flood-timeslice: the per-frame inbound drain is bounded to a wall-clock budget once
/// in-world so a CreateObject flood can't monopolize the update loop. These cover the pure
/// gate decision (<see cref="WorldSession.InboundBudgetExceeded"/>); the FIFO tail-drain is
/// standard <c>Channel</c> behavior and is verified live.
/// </summary>
public sealed class WorldSessionInboundBudgetTests
{
    [Fact]
    public void InWorld_overBudget_stops()
        => Assert.True(WorldSession.InboundBudgetExceeded(
            WorldSession.State.InWorld, startTicks: 100, nowTicks: 250, budgetTicks: 100));

    [Fact]
    public void InWorld_atBudgetBoundary_stops()
        => Assert.True(WorldSession.InboundBudgetExceeded(
            WorldSession.State.InWorld, startTicks: 0, nowTicks: 100, budgetTicks: 100));

    [Fact]
    public void InWorld_underBudget_continues()
        => Assert.False(WorldSession.InboundBudgetExceeded(
            WorldSession.State.InWorld, startTicks: 0, nowTicks: 99, budgetTicks: 100));

    [Fact]
    public void NotInWorld_neverBounds_soTheHandshakeDrainsFully()
        => Assert.False(WorldSession.InboundBudgetExceeded(
            WorldSession.State.Disconnected, startTicks: 0, nowTicks: 1_000_000, budgetTicks: 100));
}