public void EntityPatcher_ApplyChanges_WithChunkData_ManagedComponents()
{
using (var differ = new EntityManagerDiffer(SrcEntityManager, Allocator.TempJob))
{
var guid = CreateEntityGuid();
var entity = SrcEntityManager.CreateEntity();
Entity dstRootEntity;
// Chunk component is added but no values are copied
// Because chunks are generally caches and thus must be rebuildable automatically.
// They are also likely a totally different set of chunks.
// Diff & Patch is generally working against entities not on chunk level
{
SrcEntityManager.AddComponentData(entity, guid);
SrcEntityManager.AddComponentData(entity, new EcsTestData(1));
SrcEntityManager.AddChunkComponentData <EcsTestData2>(entity);
SrcEntityManager.SetChunkComponentData(SrcEntityManager.GetChunk(entity), new EcsTestData2(3));
SrcEntityManager.AddChunkComponentData <EcsTestManagedComponent>(entity);
SrcEntityManager.SetChunkComponentData(SrcEntityManager.GetChunk(entity), new EcsTestManagedComponent()
{
value = "SomeString"
});
PushChanges(differ, DstEntityManager);
dstRootEntity = GetEntity(DstEntityManager, guid);
Assert.AreEqual(1, DstEntityManager.GetComponentData <EcsTestData>(dstRootEntity).value);
Assert.IsTrue(DstEntityManager.HasChunkComponent <EcsTestData2>(dstRootEntity));
Assert.IsTrue(DstEntityManager.HasChunkComponent <EcsTestManagedComponent>(dstRootEntity));
Assert.AreEqual(0, DstEntityManager.GetChunkComponentData <EcsTestData2>(dstRootEntity).value0);
Assert.AreEqual(null, DstEntityManager.GetChunkComponentData <EcsTestManagedComponent>(dstRootEntity));
Assert.AreEqual(1, DstEntityManager.CreateEntityQuery(typeof(ChunkHeader)).CalculateEntityCount());
}
// Changing Chunk component creates no diff
{
SrcEntityManager.SetChunkComponentData(SrcEntityManager.GetChunk(entity), new EcsTestData2(7));
SrcEntityManager.SetChunkComponentData(SrcEntityManager.GetChunk(entity), new EcsTestManagedComponent()
{
value = "SomeOtherString"
});
using (var changes = differ.GetChanges(EntityManagerDifferOptions.Default, Allocator.Temp))
{
Assert.IsFalse(changes.AnyChanges);
}
}
// Removing chunk component, removes chunk component again
{
SrcEntityManager.RemoveChunkComponent <EcsTestData2>(entity);
SrcEntityManager.RemoveChunkComponent <EcsTestManagedComponent>(entity);
PushChanges(differ, DstEntityManager);
Assert.IsFalse(DstEntityManager.HasChunkComponent <EcsTestData2>(dstRootEntity));
Assert.IsFalse(DstEntityManager.HasChunkComponent <EcsTestManagedComponent>(dstRootEntity));
Assert.AreEqual(0, DstEntityManager.CreateEntityQuery(typeof(ChunkHeader)).CalculateEntityCount());
}
}
}