9067c4f60b
Called once per frame from OnUpdate. Owns a StreamingRegion and uses delegates into LandblockStreamer + a terrain-apply callback so unit tests can inject fakes. Handles first-tick bootstrap (whole window loads), boundary recenter (diff against previous center), and drain completions (up to N per frame to cap GPU upload spikes). 4 new tests, all green. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
106 lines
3.4 KiB
C#
106 lines
3.4 KiB
C#
using System.Collections.Generic;
|
||
using AcDream.App.Streaming;
|
||
using AcDream.Core.World;
|
||
using DatReaderWriter.DBObjs;
|
||
using Xunit;
|
||
|
||
namespace AcDream.Core.Tests.Streaming;
|
||
|
||
public class StreamingControllerTests
|
||
{
|
||
private sealed class FakeStreamer
|
||
{
|
||
public List<uint> Loads { get; } = new();
|
||
public List<uint> Unloads { get; } = new();
|
||
public Queue<LandblockStreamResult> Pending { get; } = new();
|
||
|
||
public void EnqueueLoad(uint id) => Loads.Add(id);
|
||
public void EnqueueUnload(uint id) => Unloads.Add(id);
|
||
public IReadOnlyList<LandblockStreamResult> DrainCompletions(int max)
|
||
{
|
||
var batch = new List<LandblockStreamResult>();
|
||
while (batch.Count < max && Pending.Count > 0)
|
||
batch.Add(Pending.Dequeue());
|
||
return batch;
|
||
}
|
||
}
|
||
|
||
[Fact]
|
||
public void FirstTick_EnqueuesWholeVisibleWindow()
|
||
{
|
||
var state = new GpuWorldState();
|
||
var fake = new FakeStreamer();
|
||
var controller = new StreamingController(
|
||
enqueueLoad: fake.EnqueueLoad,
|
||
enqueueUnload: fake.EnqueueUnload,
|
||
drainCompletions: fake.DrainCompletions,
|
||
applyTerrain: _ => { },
|
||
state: state,
|
||
radius: 2);
|
||
|
||
// Center at (50, 50); no landblocks loaded yet.
|
||
controller.Tick(observerCx: 50, observerCy: 50);
|
||
|
||
// 5×5 window = 25 loads enqueued, 0 unloads.
|
||
Assert.Equal(25, fake.Loads.Count);
|
||
Assert.Empty(fake.Unloads);
|
||
}
|
||
|
||
[Fact]
|
||
public void SecondTick_SamePosition_EnqueuesNothing()
|
||
{
|
||
var state = new GpuWorldState();
|
||
var fake = new FakeStreamer();
|
||
var controller = new StreamingController(
|
||
fake.EnqueueLoad, fake.EnqueueUnload, fake.DrainCompletions,
|
||
_ => { }, state, radius: 2);
|
||
|
||
controller.Tick(50, 50);
|
||
fake.Loads.Clear();
|
||
|
||
controller.Tick(50, 50);
|
||
|
||
Assert.Empty(fake.Loads);
|
||
Assert.Empty(fake.Unloads);
|
||
}
|
||
|
||
[Fact]
|
||
public void DrainingLoadedResult_AddsToState()
|
||
{
|
||
var state = new GpuWorldState();
|
||
var fake = new FakeStreamer();
|
||
var applied = new List<LoadedLandblock>();
|
||
var controller = new StreamingController(
|
||
fake.EnqueueLoad, fake.EnqueueUnload, fake.DrainCompletions,
|
||
applied.Add, state, radius: 2);
|
||
|
||
// Note: LoadedLandblock's actual fields are LandblockId, Heightmap,
|
||
// Entities (positional record). Adjust if the first positional arg
|
||
// name differs.
|
||
var lb = new LoadedLandblock(0x32320FFEu, new LandBlock(), System.Array.Empty<WorldEntity>());
|
||
fake.Pending.Enqueue(new LandblockStreamResult.Loaded(0x32320FFEu, lb));
|
||
|
||
controller.Tick(50, 50);
|
||
|
||
Assert.Single(applied);
|
||
Assert.True(state.IsLoaded(0x32320FFEu));
|
||
}
|
||
|
||
[Fact]
|
||
public void DrainingUnloadedResult_RemovesFromState()
|
||
{
|
||
var state = new GpuWorldState();
|
||
var fake = new FakeStreamer();
|
||
var controller = new StreamingController(
|
||
fake.EnqueueLoad, fake.EnqueueUnload, fake.DrainCompletions,
|
||
_ => { }, state, radius: 2);
|
||
|
||
var lb = new LoadedLandblock(0x32320FFEu, new LandBlock(), System.Array.Empty<WorldEntity>());
|
||
state.AddLandblock(lb);
|
||
fake.Pending.Enqueue(new LandblockStreamResult.Unloaded(0x32320FFEu));
|
||
|
||
controller.Tick(50, 50);
|
||
|
||
Assert.False(state.IsLoaded(0x32320FFEu));
|
||
}
|
||
}
|