Rasagar/Library/PackageCache/com.unity.collections/Unity.Collections.Tests/NativeBitArrayTests.cs

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2024-08-26 13:07:20 -07:00
using NUnit.Framework;
using System;
using System.Runtime.InteropServices;
using Unity.Burst;
using Unity.Collections;
using Unity.Collections.LowLevel.Unsafe;
using Unity.Collections.Tests;
using Unity.Jobs;
using Unity.Mathematics;
using UnityEngine;
using UnityEngine.TestTools;
using System.Text.RegularExpressions;
using Assert = FastAssert;
internal class NativeBitArrayTests : CollectionsTestFixture
{
[Test]
public void NativeBitArray_Init()
{
var container = new NativeBitArray(0, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.True(container.IsCreated);
Assert.True(container.IsEmpty);
Assert.DoesNotThrow(() => container.Dispose());
}
[Test]
public void NativeBitArray_Get_Set_Long()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.False(test.IsSet(123));
test.Set(123, true);
Assert.True(test.IsSet(123));
Assert.False(test.TestAll(0, numBits));
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAny(0, numBits));
Assert.AreEqual(1, test.CountBits(0, numBits));
Assert.False(test.TestAll(0, 122));
Assert.True(test.TestNone(0, 122));
Assert.False(test.TestAny(0, 122));
test.Clear();
Assert.False(test.IsSet(123));
Assert.AreEqual(0, test.CountBits(0, numBits));
test.SetBits(40, true, 4);
Assert.AreEqual(4, test.CountBits(0, numBits));
test.SetBits(0, true, numBits);
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAll(0, numBits));
test.SetBits(0, false, numBits);
Assert.True(test.TestNone(0, numBits));
Assert.False(test.TestAll(0, numBits));
test.SetBits(123, true, 7);
Assert.True(test.TestAll(123, 7));
test.Clear();
test.SetBits(64, true, 64);
Assert.AreEqual(false, test.IsSet(63));
Assert.AreEqual(true, test.TestAll(64, 64));
Assert.AreEqual(false, test.IsSet(128));
Assert.AreEqual(64, test.CountBits(64, 64));
Assert.AreEqual(64, test.CountBits(0, numBits));
test.Clear();
test.SetBits(65, true, 62);
Assert.AreEqual(false, test.IsSet(64));
Assert.AreEqual(true, test.TestAll(65, 62));
Assert.AreEqual(false, test.IsSet(127));
Assert.AreEqual(62, test.CountBits(64, 64));
Assert.AreEqual(62, test.CountBits(0, numBits));
test.Clear();
test.SetBits(66, true, 64);
Assert.AreEqual(false, test.IsSet(65));
Assert.AreEqual(true, test.TestAll(66, 64));
Assert.AreEqual(false, test.IsSet(130));
Assert.AreEqual(64, test.CountBits(66, 64));
Assert.AreEqual(64, test.CountBits(0, numBits));
test.Dispose();
}
[Test]
public void NativeBitArray_Get_Set_Short()
{
var numBits = 31;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.False(test.IsSet(13));
test.Set(13, true);
Assert.True(test.IsSet(13));
Assert.False(test.TestAll(0, numBits));
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAny(0, numBits));
Assert.AreEqual(1, test.CountBits(0, numBits));
Assert.False(test.TestAll(0, 12));
Assert.True(test.TestNone(0, 12));
Assert.False(test.TestAny(0, 12));
test.Clear();
Assert.False(test.IsSet(13));
Assert.AreEqual(0, test.CountBits(0, numBits));
test.SetBits(4, true, 4);
Assert.AreEqual(4, test.CountBits(0, numBits));
test.SetBits(0, true, numBits);
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAll(0, numBits));
test.SetBits(0, false, numBits);
Assert.True(test.TestNone(0, numBits));
Assert.False(test.TestAll(0, numBits));
test.SetBits(13, true, 7);
Assert.True(test.TestAll(13, 7));
test.Clear();
test.SetBits(4, true, 4);
Assert.AreEqual(false, test.IsSet(3));
Assert.AreEqual(true, test.TestAll(4, 4));
Assert.AreEqual(false, test.IsSet(18));
Assert.AreEqual(4, test.CountBits(4, 4));
Assert.AreEqual(4, test.CountBits(0, numBits));
test.Clear();
test.SetBits(5, true, 2);
Assert.AreEqual(false, test.IsSet(4));
Assert.AreEqual(true, test.TestAll(5, 2));
Assert.AreEqual(false, test.IsSet(17));
Assert.AreEqual(2, test.CountBits(4, 4));
Assert.AreEqual(2, test.CountBits(0, numBits));
test.Clear();
test.SetBits(6, true, 4);
Assert.AreEqual(false, test.IsSet(5));
Assert.AreEqual(true, test.TestAll(6, 4));
Assert.AreEqual(false, test.IsSet(10));
Assert.AreEqual(4, test.CountBits(6, 4));
Assert.AreEqual(4, test.CountBits(0, numBits));
test.Dispose();
}
[Test]
public void NativeBitArray_Get_Set_Tiny()
{
var numBits = 7;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.False(test.IsSet(3));
test.Set(3, true);
Assert.True(test.IsSet(3));
Assert.False(test.TestAll(0, numBits));
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAny(0, numBits));
Assert.AreEqual(1, test.CountBits(0, numBits));
Assert.False(test.TestAll(0, 2));
Assert.True(test.TestNone(0, 2));
Assert.False(test.TestAny(0, 2));
test.Clear();
Assert.False(test.IsSet(3));
Assert.AreEqual(0, test.CountBits(0, numBits));
test.SetBits(3, true, 4);
Assert.AreEqual(4, test.CountBits(0, numBits));
test.SetBits(0, true, numBits);
Assert.False(test.TestNone(0, numBits));
Assert.True(test.TestAll(0, numBits));
test.SetBits(0, false, numBits);
Assert.True(test.TestNone(0, numBits));
Assert.False(test.TestAll(0, numBits));
test.Dispose();
}
[Test]
[TestRequiresDotsDebugOrCollectionChecks]
public unsafe void NativeBitArray_Throws()
{
var numBits = 256;
Assert.Throws<ArgumentException>(() => { new NativeBitArray(numBits, Allocator.None); });
using (var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory))
{
Assert.DoesNotThrow(() => { test.TestAll(0, numBits); });
Assert.DoesNotThrow(() => { test.TestAny(numBits - 1, numBits); });
Assert.Throws<ArgumentException>(() => { test.IsSet(-1); });
Assert.Throws<ArgumentException>(() => { test.IsSet(numBits); });
Assert.Throws<ArgumentException>(() => { test.TestAny(0, 0); });
Assert.Throws<ArgumentException>(() => { test.TestAny(numBits, 1); });
Assert.Throws<ArgumentException>(() => { test.TestAny(numBits - 1, 0); });
// GetBits numBits must be 1-64.
Assert.Throws<ArgumentException>(() => { test.GetBits(0, 0); });
Assert.Throws<ArgumentException>(() => { test.GetBits(0, 65); });
Assert.DoesNotThrow(() => { test.GetBits(63, 2); });
}
}
void GetBitsTest(ref NativeBitArray test, int pos, int numBits)
{
test.SetBits(pos, true, numBits);
Assert.AreEqual(numBits, test.CountBits(0, test.Length));
Assert.AreEqual(0xfffffffffffffffful >> (64 - numBits), test.GetBits(pos, numBits));
test.Clear();
}
[Test]
public void NativeBitArray_GetBits()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
GetBitsTest(ref test, 0, 5);
GetBitsTest(ref test, 1, 3);
GetBitsTest(ref test, 0, 63);
GetBitsTest(ref test, 0, 64);
GetBitsTest(ref test, 1, 63);
GetBitsTest(ref test, 1, 64);
GetBitsTest(ref test, 62, 5);
GetBitsTest(ref test, 127, 3);
GetBitsTest(ref test, 250, 6);
GetBitsTest(ref test, 254, 2);
test.Dispose();
}
static void SetBitsTest(ref NativeBitArray test, int pos, ulong value, int numBits)
{
test.SetBits(pos, value, numBits);
if (value != test.GetBits(pos, numBits))
throw new Exception("Assert.Equals(value, test.GetBits(pos, numBits)) failed");
test.Clear();
}
[Test]
public void NativeBitArray_SetBits()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
SetBitsTest(ref test, 0, 16, 5);
SetBitsTest(ref test, 1, 7, 3);
SetBitsTest(ref test, 1, 32, 64);
SetBitsTest(ref test, 62, 6, 5);
SetBitsTest(ref test, 127, 1, 3);
SetBitsTest(ref test, 60, 0xaa, 8);
test.Dispose();
}
static void CopyBitsTest(ref NativeBitArray test, int dstPos, int srcPos, int numBits)
{
for (int pos = 0; pos < test.Length; pos += 64)
{
test.SetBits(pos, 0xaaaaaaaaaaaaaaaaul, 64);
}
test.SetBits(srcPos, true, numBits);
test.Copy(dstPos, srcPos, numBits);
Assert.AreEqual(true, test.TestAll(dstPos, numBits));
for (int pos = 0; pos < test.Length; ++pos)
{
if ((pos >= dstPos && pos < dstPos + numBits) ||
(pos >= srcPos && pos < srcPos + numBits))
{
Assert.AreEqual(true, test.IsSet(pos));
}
else
{
Assert.AreEqual((0 != (pos & 1)), test.IsSet(pos));
}
}
test.Clear();
}
static void CopyBitsTests(ref NativeBitArray test)
{
CopyBitsTest(ref test, 1, 16, 12); // short up to 64-bits copy
CopyBitsTest(ref test, 1, 80, 63); // short up to 64-bits copy
CopyBitsTest(ref test, 1, 11, 12); // short up to 64-bits copy overlapped
CopyBitsTest(ref test, 11, 1, 12); // short up to 64-bits copy overlapped
CopyBitsTest(ref test, 1, 16, 76); // short up to 128-bits copy
CopyBitsTest(ref test, 1, 80, 127); // short up to 128-bits copy
CopyBitsTest(ref test, 1, 11, 76); // short up to 128-bits copy overlapped
CopyBitsTest(ref test, 11, 1, 76); // short up to 128-bits copy overlapped
CopyBitsTest(ref test, 1, 81, 255); // long copy aligned
CopyBitsTest(ref test, 8, 0, 255); // long copy overlapped aligned
CopyBitsTest(ref test, 1, 80, 255); // long copy unaligned
CopyBitsTest(ref test, 80, 1, 255); // long copy overlapped unaligned
}
[Test]
public void NativeBitArray_Copy()
{
var numBits = 512;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
CopyBitsTests(ref test);
test.Dispose();
}
[Test]
public void UnsafeBitArray_Resize()
{
var test = new NativeBitArray(1, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.AreEqual(1, test.Length);
Assert.AreEqual(64, test.Capacity);
test.SetCapacity(200); // expand
Assert.AreEqual(1, test.Length);
Assert.AreEqual(256, test.Capacity);
test.Resize(100, NativeArrayOptions.ClearMemory);
Assert.True(test.TestNone(0, test.Length));
// prepare survival test
test.Set(0, true);
test.Set(99, true);
Assert.True(test.IsSet(0));
Assert.True(test.TestNone(1, 98));
Assert.True(test.IsSet(99));
test.SetCapacity(1000); // expand
Assert.AreEqual(100, test.Length);
Assert.AreEqual(1024, test.Capacity);
// test resize survival
Assert.True(test.IsSet(0));
Assert.True(test.TestNone(1, 98));
Assert.True(test.IsSet(99));
// manual clear
test.Resize(1);
test.Set(0, false);
test.SetCapacity(200); // truncate capacity
Assert.AreEqual(1, test.Length);
Assert.AreEqual(256, test.Capacity);
test.Resize(512, NativeArrayOptions.ClearMemory); // resize
Assert.AreEqual(512, test.Length);
Assert.AreEqual(512, test.Capacity);
Assert.True(test.TestNone(0, test.Length));
CopyBitsTests(ref test);
test.Resize(256); // truncate length
Assert.AreEqual(256, test.Length);
Assert.AreEqual(512, test.Capacity);
test.TrimExcess();
Assert.AreEqual(256, test.Length);
Assert.AreEqual(256, test.Capacity);
test.Dispose();
}
[Test]
public unsafe void NativeBitArray_CopyBetweenBitArrays()
{
var numBits = 512;
var str = new FixedString128Bytes("aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ");
var test0 = NativeBitArrayUnsafeUtility.ConvertExistingDataToNativeBitArray(&str.bytes.offset0000, 64, Allocator.None);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
AtomicSafetyHandle ash = CollectionHelper.CreateSafetyHandle(Allocator.Temp);
NativeBitArrayUnsafeUtility.SetAtomicSafetyHandle(ref test0, ash);
#endif
var test1 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
var test2 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
for (int pos = 0; pos < test0.Length; pos += 64)
{
test1.SetBits(pos, 0x5555555555555555ul, 64);
test2.SetBits(pos, 0xaaaaaaaaaaaaaaaaul, 64);
}
test1.Copy(1, ref test0, 205, 211);
test1.Copy(214, ref test0, 0, 205);
test2.Copy(205, ref test1, 1, 211);
test2.Copy(0, ref test1, 214, 205);
test0.Copy(0, ref test2, 0, 512);
Assert.AreEqual(str, "aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ");
test0.Dispose();
test1.Dispose();
test2.Dispose();
}
[Test]
[TestRequiresDotsDebugOrCollectionChecks]
public unsafe void NativeBitArray_Copy_Throws()
{
var numBits = 512;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, 0, numBits - 1, 16); }); // short up to 64-bits copy out of bounds
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, numBits - 1, 0, 16); }); // short up to 64-bits copy out of bounds
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, 0, numBits - 1, 80); }); // short up to 128-bits copy out of bounds
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, numBits - 1, 0, 80); }); // short up to 128-bits copy out of bounds
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, 1, numBits - 7, 127); }); // long copy aligned
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, numBits - 7, 1, 127); }); // long copy aligned
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, 2, numBits - 1, 127); }); // long copy unaligned
Assert.Throws<ArgumentException>(() => { CopyBitsTest(ref test, numBits - 1, 2, 127); }); // long copy unaligned
test.Dispose();
}
[Test]
public unsafe void NativeBitArray_Find()
{
var numBits = 512;
using (var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory))
{
test.SetBits(0, true, 11);
for (var i = 0; i < 256; ++i)
{
Assert.AreEqual(11, test.Find(0, i + 1));
}
for (var j = 0; j < 64; ++j)
{
for (var i = 0; i < 256; ++i)
{
var numBitsToFind = 7 + i;
var pos = 37 + j;
test.SetBits(0, true, test.Length);
test.SetBits(pos, false, numBitsToFind);
Assert.AreEqual(pos, test.Find(0, numBitsToFind)); //, $"{j}/{i}: pos {pos}, numBitsToFind {numBitsToFind}");
Assert.AreEqual(pos, test.Find(pos, numBitsToFind)); //, $"{j}/{i}:pos {pos}, numBitsToFind {numBitsToFind}");
Assert.AreEqual(pos, test.Find(0, numBitsToFind)); //, $"{j}/{i}: pos {pos}, numBitsToFind {numBitsToFind}");
Assert.AreEqual(pos, test.Find(pos, numBitsToFind)); //, $"{j}/{i}: pos {pos}, numBitsToFind {numBitsToFind}");
Assert.IsTrue(test.TestNone(test.Find(0, numBitsToFind), numBitsToFind));
Assert.AreEqual(int.MaxValue, test.Find(pos + 1, numBitsToFind)); //, $"{j}/{i}: pos {pos}, numBitsToFind {numBitsToFind}");
}
}
}
}
[Test]
public unsafe void NativeBitArray_Find_With_Begin_End()
{
var numBits = 512;
using (var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory))
{
Assert.AreEqual(0, test.Find(0, 2, 1));
Assert.AreEqual(1, test.Find(1, 2, 1));
test.SetBits(0, true, 6);
Assert.AreEqual(int.MaxValue, test.Find(0, 2, 1));
for (var j = 0; j < 64; ++j)
{
for (var i = 0; i < 256; ++i)
{
var numBitsToFind = 7 + i;
var padding = 11;
var begin = 37 + j;
var end = begin + padding + numBitsToFind;
var count = end - begin;
test.Clear();
test.SetBits(begin, true, count);
test.SetBits(begin + padding + 1, false, numBitsToFind - 1);
Assert.AreEqual(begin + padding + 1, test.Find(begin, count, numBitsToFind - 1)); //, $"{j}/{i}: begin {begin}, end {end}, count {count}, numBitsToFind {numBitsToFind}");
Assert.AreEqual(int.MaxValue, test.Find(begin, count, numBitsToFind)); //, $"{j}/{i}: begin {begin}, end {end}, count {count}, numBitsToFind {numBitsToFind}");
}
}
}
}
[Test]
[TestRequiresDotsDebugOrCollectionChecks]
public unsafe void NativeBitArray_Find_Throws()
{
var numBits = 512;
using (var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory))
{
Assert.Throws<ArgumentException>(() => { test.Find(0, 0, 1); }); // empty range
Assert.Throws<ArgumentException>(() => { test.Find(0, 1, 0); }); // zero bits
Assert.Throws<ArgumentException>(() => { test.Find(0, 1, 2); }); // numBits is larger than range
Assert.Throws<ArgumentException>(() => { test.Find(10, 0, 0); }); // empty range, numBits is less than 1
Assert.Throws<ArgumentException>(() => { test.Find(1, 10, -2); }); // numBits can't be negative
}
}
[Test]
public void NativeBitArray_AsNativeArray_Byte()
{
var numBits = 64;
var test0 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
var test1 = test0.AsNativeArray<byte>();
Assert.AreEqual(numBits / 8, test1.Length);
test1[0] = 0x10;
test1[1] = 0x32;
test1[2] = 0x54;
test1[3] = 0x76;
test1[4] = 0x98;
test1[5] = 0xba;
test1[6] = 0xdc;
test1[7] = 0xfe;
for (var i = 0; i < 16; ++i)
{
NUnit.Framework.Assert.AreEqual(i, test0.GetBits(i * 4, 4));
}
test1.Dispose();
test0.Dispose();
}
[Test]
public void NativeBitArray_AsNativeArray_Uint()
{
var numBits = 64;
var test0 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
var test1 = test0.AsNativeArray<uint>();
Assert.AreEqual(numBits / 32, test1.Length);
test1[0] = 0x76543210;
test1[1] = 0xfedcba98;
for (var i = 0; i < 16; ++i)
{
NUnit.Framework.Assert.AreEqual(i, test0.GetBits(i * 4, 4));
}
test1.Dispose();
test0.Dispose();
}
[Test]
public void NativeBitArray_AsNativeArray_Ulong()
{
var numBits = 64;
var test0 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
var test1 = test0.AsNativeArray<ulong>();
Assert.AreEqual(numBits / 64, test1.Length);
test1[0] = 0xfedcba9876543210;
for (var i = 0; i < 16; ++i)
{
NUnit.Framework.Assert.AreEqual(i, test0.GetBits(i * 4, 4));
}
test1.Dispose();
test0.Dispose();
}
[StructLayout(LayoutKind.Explicit, Size = 16)]
internal struct SizeMismatch128
{
}
[StructLayout(LayoutKind.Explicit, Size=7)]
internal struct SizeMismatch56
{
}
[Test]
[TestRequiresDotsDebugOrCollectionChecks]
public void NativeBitArray_AsNativeArray_ThrowsOnSizeMismatch()
{
var numBits = 64;
var test0 = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.Throws<InvalidOperationException>(() => { test0.AsNativeArray<SizeMismatch128>(); });
Assert.Throws<InvalidOperationException>(() => { test0.AsNativeArray<SizeMismatch56>(); });
test0.Dispose();
}
// Burst error BC1071: Unsupported assert type
// [BurstCompile(CompileSynchronously = true)]
struct NativeBitArrayTestReadOnly : IJob
{
public NativeBitArray.ReadOnly reader;
public void Execute()
{
var rd = reader;
Assert.True(reader.IsSet(7));
Assert.AreEqual(1, reader.CountBits(0, reader.Length));
}
}
[Test]
[TestRequiresCollectionChecks]
public void NativeBitArray_ReadOnly()
{
var numBits = 256;
var reader = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
reader.Set(7, true);
var readerJob = new NativeBitArrayTestReadOnly { reader = reader.AsReadOnly() }.Schedule();
var from = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.Throws<InvalidOperationException>(() => { reader.Copy(7, ref from, 30, 10); } /* attempt to write into reader after job is scheduled */);
from.Dispose();
reader.Dispose(readerJob);
readerJob.Complete();
}
[Test]
[TestRequiresCollectionChecks]
public void NativeBitArray_UseAfterFree_UsesCustomOwnerTypeName()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
SetBitsTest(ref test, 0, 16, 5);
test.Dispose();
NUnit.Framework.Assert.That(() => test.IsSet(0),
Throws.Exception.TypeOf<ObjectDisposedException>()
.With.Message.Contains($"The {test.GetType()} has been deallocated"));
}
[Test]
[TestRequiresCollectionChecks]
public void NativeBitArray_AtomicSafetyHandle_AllocatorTemp_UniqueStaticSafetyIds()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Temp, NativeArrayOptions.ClearMemory);
// All collections that use Allocator.Temp share the same core AtomicSafetyHandle.
// This test verifies that containers can proceed to assign unique static safety IDs to each
// AtomicSafetyHandle value, which will not be shared by other containers using Allocator.Temp.
var test0 = new NativeBitArray(numBits, Allocator.Temp, NativeArrayOptions.ClearMemory);
var test1 = new NativeBitArray(numBits, Allocator.Temp, NativeArrayOptions.ClearMemory);
SetBitsTest(ref test0, 0, 16, 5);
test0.Dispose();
NUnit.Framework.Assert.That(() => test0.IsSet(0),
Throws.Exception.With.TypeOf<ObjectDisposedException>()
.With.Message.Contains($"The {test0.GetType()} has been deallocated"));
SetBitsTest(ref test1, 0, 16, 5);
test1.Dispose();
NUnit.Framework.Assert.That(() => test1.IsSet(0),
Throws.Exception.With.TypeOf<ObjectDisposedException>()
.With.Message.Contains($"The {test1.GetType()} has been deallocated"));
}
[BurstCompile(CompileSynchronously = true)]
struct NativeBitArrayCreateAndUseAfterFreeBurst : IJob
{
public void Execute()
{
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Temp, NativeArrayOptions.ClearMemory);
SetBitsTest(ref test, 0, 16, 5);
test.Dispose();
SetBitsTest(ref test, 0, 16, 5);
}
}
[Test]
[TestRequiresCollectionChecks]
public void NativeBitArray_CreateAndUseAfterFreeInBurstJob_UsesCustomOwnerTypeName()
{
// Make sure this isn't the first container of this type ever created, so that valid static safety data exists
var numBits = 256;
var test = new NativeBitArray(numBits, Allocator.Persistent, NativeArrayOptions.ClearMemory);
test.Dispose();
var job = new NativeBitArrayCreateAndUseAfterFreeBurst
{
};
// Two things:
// 1. This exception is logged, not thrown; thus, we use LogAssert to detect it.
// 2. Calling write operation after container.Dispose() emits an unintuitive error message. For now, all this test cares about is whether it contains the
// expected type name.
job.Run();
LogAssert.Expect(LogType.Exception,
new Regex($"InvalidOperationException: The {Regex.Escape(test.GetType().ToString())} has been declared as \\[ReadOnly\\] in the job, but you are writing to it"));
}
void findWithPattern(ref NativeBitArray test, byte pattern, int numBits)
{
for (int pos = 0; pos < test.Length; pos += 8)
{
test.SetBits(pos, pattern, 8);
}
var bitCount = math.countbits((int)pattern);
var numEmptyBits = test.Length - (test.Length / 8 * bitCount);
for (int i = 0; i < numEmptyBits; i += numBits)
{
var pos = test.Find(0, numBits);
Assert.AreNotEqual(int.MaxValue, pos, $"{i}");
test.SetBits(pos, true, numBits);
}
Assert.True(test.TestAll(0, test.Length));
}
[Test]
public void NativeBitArray_FindWithPattern()
{
var test = new NativeBitArray(512, Allocator.Persistent, NativeArrayOptions.ClearMemory);
// Separated test for some more interesting patterns
findWithPattern(ref test, 0x81, 1);
findWithPattern(ref test, 0x81, 2);
findWithPattern(ref test, 0x81, 3);
findWithPattern(ref test, 0x81, 6);
findWithPattern(ref test, 0x88, 3);
findWithPattern(ref test, 0x99, 2);
findWithPattern(ref test, 0xaa, 1);
findWithPattern(ref test, 0xc3, 1);
findWithPattern(ref test, 0xc3, 2);
findWithPattern(ref test, 0xc3, 4);
findWithPattern(ref test, 0xe7, 1);
findWithPattern(ref test, 0xe7, 2);
// Test all patterns
for (int i = 0; i < 256; i++)
{
findWithPattern(ref test, (byte)i, 1);
}
test.Dispose();
}
[Test]
public void NativeBitArray_FindInTinyBitArray()
{
var test = new NativeBitArray(3, Allocator.Persistent, NativeArrayOptions.ClearMemory);
Assert.AreEqual(3, test.Length);
test.SetBits(0, 0x55, test.Length);
Assert.AreEqual(1, test.Find(0, 1));
Assert.AreEqual(1, test.Find(0, test.Length, 1));
test.SetBits(1, true, 1);
Assert.True(test.TestAll(0, test.Length));
Assert.AreEqual(int.MaxValue, test.Find(0, test.Length, 1));
test.Dispose();
}
[Test]
public void NativeBitArray_FindLastUnsetBit([NUnit.Framework.Range(1, 64)] int numBits)
{
using (var bits = new NativeBitArray(numBits, Allocator.Persistent))
{
// Set all bits to one then unset a single bit to find.
for (int i = 0; i < numBits; ++i)
{
bits.SetBits(0, true, numBits);
bits.Set(i, false);
Assert.AreEqual(i, bits.Find(0, 1));
}
}
}
[Test]
public void NativeBitArray_CustomAllocatorTest()
{
AllocatorManager.Initialize();
var allocatorHelper = new AllocatorHelper<CustomAllocatorTests.CountingAllocator>(AllocatorManager.Persistent);
allocatorHelper.Allocator.Initialize();
using (var bitset = new NativeBitArray(1, allocatorHelper.Allocator.Handle))
{
}
Assert.IsTrue(allocatorHelper.Allocator.WasUsed);
allocatorHelper.Allocator.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
[BurstCompile]
struct BurstedCustomAllocatorJob : IJob
{
[NativeDisableUnsafePtrRestriction]
public unsafe CustomAllocatorTests.CountingAllocator* Allocator;
public void Execute()
{
unsafe
{
using (var container = new NativeBitArray(1, Allocator->Handle))
{
}
}
}
}
[Test]
public unsafe void NativeBitArray_BurstedCustomAllocatorTest()
{
AllocatorManager.Initialize();
var allocatorHelper = new AllocatorHelper<CustomAllocatorTests.CountingAllocator>(AllocatorManager.Persistent);
ref var allocator = ref allocatorHelper.Allocator;
allocatorHelper.Allocator.Initialize();
var allocatorPtr = (CustomAllocatorTests.CountingAllocator*)UnsafeUtility.AddressOf<CustomAllocatorTests.CountingAllocator>(ref allocator);
unsafe
{
var handle = new BurstedCustomAllocatorJob {Allocator = allocatorPtr}.Schedule();
handle.Complete();
}
Assert.IsTrue(allocator.WasUsed);
allocator.Dispose();
allocatorHelper.Dispose();
AllocatorManager.Shutdown();
}
}