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com.unity.netcode.gameobjects/Tests/Editor/Serialization/BitReaderTests.cs
Unity Technologies 63c7e4c78a com.unity.netcode.gameobjects@2.0.0-exp.4
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com).

## [2.0.0-exp.4] - 2024-05-31

### Added

- Added `NetworkRigidbodyBase.AttachToFixedJoint` and `NetworkRigidbodyBase.DetachFromFixedJoint` to replace parenting for rigid bodies that have `NetworkRigidbodyBase.UseRigidBodyForMotion` enabled. (#2933)
- Added `NetworkBehaviour.OnNetworkPreSpawn` and `NetworkBehaviour.OnNetworkPostSpawn` methods that provide the ability to handle pre and post spawning actions during the `NetworkObject` spawn sequence. (#2912)
- Added a client-side only `NetworkBehaviour.OnNetworkSessionSynchronized` convenience method that is invoked on all `NetworkBehaviour`s after a newly joined client has finished synchronizing with the network session in progress. (#2912)
- Added `NetworkBehaviour.OnInSceneObjectsSpawned` convenience method that is invoked when all in-scene `NetworkObject`s have been spawned after a scene has been loaded or upon a host or server starting. (#2912)

### Fixed

- Fixed issue where non-authoritative rigid bodies with `NetworkRigidbodyBase.UseRigidBodyForMotion` enabled would constantly log errors about the renderTime being before `StartTimeConsumed`. (#2933)
- Fixed issue where in-scene placed NetworkObjects could be destroyed if a client disconnects early and/or before approval. (#2924)
- Fixed issue where a `NetworkObject` component's associated `NetworkBehaviour` components would not be detected if scene loading is disabled in the editor and the currently loaded scene has in-scene placed `NetworkObject`s. (#2912)
- Fixed issue where an in-scene placed `NetworkObject` with `NetworkTransform` that is also parented under a `GameObject` would not properly synchronize when the parent `GameObject` had a world space position other than 0,0,0. (#2898)

### Changed

- Change all the access modifiers of test class from Public to Internal (#2930)
- Changed messages are now sorted by enum values as opposed to ordinally sorting the messages by their type name. (#2929)
- Changed `NetworkClient.SessionModeTypes` to `NetworkClient.NetworkTopologyTypes`. (#2875)
- Changed `NetworkClient.SessionModeType` to `NetworkClient.NetworkTopologyType`. (#2875)
- Changed `NetworkConfig.SessionMode` to `NeworkConfig.NetworkTopology`. (#2875)
2024-05-31 00:00:00 +00:00

372 lines
13 KiB
C#

using System;
using NUnit.Framework;
using Unity.Collections;
namespace Unity.Netcode.EditorTests
{
internal class BitReaderTests
{
[Test]
public void TestReadingOneBit()
{
var writer = new FastBufferWriter(4, Allocator.Temp);
using (writer)
{
Assert.IsTrue(writer.TryBeginWrite(3));
using (var bitWriter = writer.EnterBitwiseContext())
{
bitWriter.WriteBit(true);
bitWriter.WriteBit(true);
bitWriter.WriteBit(false);
bitWriter.WriteBit(true);
bitWriter.WriteBit(false);
bitWriter.WriteBit(false);
bitWriter.WriteBit(false);
bitWriter.WriteBit(true);
bitWriter.WriteBit(false);
bitWriter.WriteBit(true);
bitWriter.WriteBit(false);
bitWriter.WriteBit(true);
}
writer.WriteByte(0b11111111);
var reader = new FastBufferReader(writer, Allocator.Temp);
using (reader)
{
Assert.IsTrue(reader.TryBeginRead(3));
using (var bitReader = reader.EnterBitwiseContext())
{
bool b;
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
}
reader.ReadByte(out byte lastByte);
Assert.AreEqual(0b11111111, lastByte);
}
}
}
[Test]
public unsafe void TestTryBeginReadBits()
{
var nativeArray = new NativeArray<byte>(4, Allocator.Temp);
var reader = new FastBufferReader(nativeArray, Allocator.Temp);
nativeArray.Dispose();
using (reader)
{
int* asInt = (int*)reader.GetUnsafePtr();
*asInt = 0b11111111_00001010_10101011;
using (var bitReader = reader.EnterBitwiseContext())
{
Assert.Throws<InvalidOperationException>(() => reader.TryBeginRead(1));
Assert.Throws<InvalidOperationException>(() => reader.TryBeginReadValue(1));
Assert.IsTrue(bitReader.TryBeginReadBits(1));
bitReader.ReadBit(out bool b);
Assert.IsTrue(b);
// Can't use Assert.Throws() because ref struct BitWriter can't be captured in a lambda
try
{
bitReader.ReadBit(out b);
}
catch (OverflowException)
{
// Should get called here.
}
Assert.IsTrue(bitReader.TryBeginReadBits(3));
bitReader.ReadBit(out b);
Assert.IsTrue(b);
bitReader.ReadBit(out b);
Assert.IsFalse(b);
bitReader.ReadBit(out b);
Assert.IsTrue(b);
byte byteVal;
try
{
bitReader.ReadBits(out byteVal, 4);
}
catch (OverflowException)
{
// Should get called here.
}
try
{
bitReader.ReadBits(out byteVal, 1);
}
catch (OverflowException)
{
// Should get called here.
}
Assert.IsTrue(bitReader.TryBeginReadBits(3));
try
{
bitReader.ReadBits(out byteVal, 4);
}
catch (OverflowException)
{
// Should get called here.
}
Assert.IsTrue(bitReader.TryBeginReadBits(4));
bitReader.ReadBits(out byteVal, 3);
Assert.AreEqual(0b010, byteVal);
Assert.IsTrue(bitReader.TryBeginReadBits(5));
bitReader.ReadBits(out byteVal, 5);
Assert.AreEqual(0b10101, byteVal);
}
Assert.AreEqual(2, reader.Position);
Assert.IsTrue(reader.TryBeginRead(1));
reader.ReadByte(out byte nextByte);
Assert.AreEqual(0b11111111, nextByte);
Assert.IsTrue(reader.TryBeginRead(1));
reader.ReadByte(out nextByte);
Assert.AreEqual(0b00000000, nextByte);
Assert.IsFalse(reader.TryBeginRead(1));
using (var bitReader = reader.EnterBitwiseContext())
{
Assert.IsFalse(bitReader.TryBeginReadBits(1));
}
}
}
[Test]
public void TestReadingMultipleBits()
{
var writer = new FastBufferWriter(4, Allocator.Temp);
using (writer)
{
Assert.IsTrue(writer.TryBeginWrite(3));
using (var bitWriter = writer.EnterBitwiseContext())
{
bitWriter.WriteBits(0b11111111, 1);
bitWriter.WriteBits(0b11111111, 1);
bitWriter.WriteBits(0b11111110, 2);
bitWriter.WriteBits(0b11111000, 4);
bitWriter.WriteBits(0b11111010, 4);
}
writer.WriteByte(0b11111111);
var reader = new FastBufferReader(writer, Allocator.Temp);
using (reader)
{
Assert.IsTrue(reader.TryBeginRead(3));
using (var bitReader = reader.EnterBitwiseContext())
{
byte b;
bitReader.ReadBits(out b, 1);
Assert.AreEqual(0b1, b);
bitReader.ReadBits(out b, 1);
Assert.AreEqual(0b1, b);
bitReader.ReadBits(out b, 2);
Assert.AreEqual(0b10, b);
bitReader.ReadBits(out b, 4);
Assert.AreEqual(0b1000, b);
bitReader.ReadBits(out b, 4);
Assert.AreEqual(0b1010, b);
}
reader.ReadByte(out byte lastByte);
Assert.AreEqual(0b11111111, lastByte);
}
}
}
[Test]
public void TestReadingMultipleBitsToLongs()
{
var writer = new FastBufferWriter(4, Allocator.Temp);
using (writer)
{
Assert.IsTrue(writer.TryBeginWrite(3));
using (var bitWriter = writer.EnterBitwiseContext())
{
bitWriter.WriteBits(0b11111111UL, 1);
bitWriter.WriteBits(0b11111111UL, 1);
bitWriter.WriteBits(0b11111110UL, 2);
bitWriter.WriteBits(0b11111000UL, 4);
bitWriter.WriteBits(0b11111010UL, 4);
}
writer.WriteByte(0b11111111);
var reader = new FastBufferReader(writer, Allocator.Temp);
using (reader)
{
Assert.IsTrue(reader.TryBeginRead(3));
using (var bitReader = reader.EnterBitwiseContext())
{
ulong ul;
bitReader.ReadBits(out ul, 1);
Assert.AreEqual(0b1, ul);
bitReader.ReadBits(out ul, 1);
Assert.AreEqual(0b1, ul);
bitReader.ReadBits(out ul, 2);
Assert.AreEqual(0b10, ul);
bitReader.ReadBits(out ul, 4);
Assert.AreEqual(0b1000, ul);
bitReader.ReadBits(out ul, 4);
Assert.AreEqual(0b1010, ul);
}
reader.ReadByte(out byte lastByte);
Assert.AreEqual(0b11111111, lastByte);
}
}
}
[Test]
public unsafe void TestReadingMultipleBytesToLongs([Range(1U, 64U)] uint numBits)
{
ulong value = 0xFFFFFFFFFFFFFFFF;
var reader = new FastBufferReader((byte*)&value, Allocator.Temp, sizeof(ulong));
using (reader)
{
ulong* asUlong = (ulong*)reader.GetUnsafePtr();
Assert.AreEqual(value, *asUlong);
var mask = 0UL;
for (var i = 0; i < numBits; ++i)
{
mask |= (1UL << i);
}
ulong readValue;
Assert.IsTrue(reader.TryBeginRead(sizeof(ulong)));
using (var bitReader = reader.EnterBitwiseContext())
{
bitReader.ReadBits(out readValue, numBits);
}
Assert.AreEqual(value & mask, readValue);
}
}
[Test]
public unsafe void TestReadingMultipleBytesToLongsMisaligned([Range(1U, 63U)] uint numBits)
{
ulong value = 0b01010101_10101010_01010101_10101010_01010101_10101010_01010101_10101010;
var reader = new FastBufferReader((byte*)&value, Allocator.Temp, sizeof(ulong));
using (reader)
{
ulong* asUlong = (ulong*)reader.GetUnsafePtr();
Assert.AreEqual(value, *asUlong);
var mask = 0UL;
for (var i = 0; i < numBits; ++i)
{
mask |= (1UL << i);
}
ulong readValue;
Assert.IsTrue(reader.TryBeginRead(sizeof(ulong)));
using (var bitReader = reader.EnterBitwiseContext())
{
bitReader.ReadBit(out bool unused);
bitReader.ReadBits(out readValue, numBits);
}
Assert.AreEqual((value >> 1) & mask, readValue);
}
}
[Test]
public unsafe void TestReadingBitsThrowsIfTryBeginReadNotCalled()
{
var nativeArray = new NativeArray<byte>(4, Allocator.Temp);
var reader = new FastBufferReader(nativeArray, Allocator.Temp);
nativeArray.Dispose();
using (reader)
{
int* asInt = (int*)reader.GetUnsafePtr();
*asInt = 0b11111111_00001010_10101011;
Assert.Throws<OverflowException>(() =>
{
using var bitReader = reader.EnterBitwiseContext();
bitReader.ReadBit(out bool b);
});
Assert.Throws<OverflowException>(() =>
{
using var bitReader = reader.EnterBitwiseContext();
bitReader.ReadBits(out byte b, 1);
});
Assert.Throws<OverflowException>(() =>
{
using var bitReader = reader.EnterBitwiseContext();
bitReader.ReadBits(out ulong ul, 1);
});
Assert.AreEqual(0, reader.Position);
Assert.Throws<OverflowException>(() =>
{
Assert.IsTrue(reader.TryBeginRead(1));
using var bitReader = reader.EnterBitwiseContext();
ulong ul;
try
{
bitReader.ReadBits(out ul, 4);
bitReader.ReadBits(out ul, 4);
}
catch (OverflowException)
{
Assert.Fail("Overflow exception was thrown too early.");
throw;
}
bitReader.ReadBits(out ul, 4);
});
}
}
}
}