63 lines
1.9 KiB
C#
63 lines
1.9 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
|
|
// The .NET Foundation licenses this file to you under the MIT license.
|
|
// See the LICENSE file in the project root for more information.
|
|
|
|
using System.IO;
|
|
using CommunityToolkit.HighPerformance.Buffers;
|
|
using Microsoft.VisualStudio.TestTools.UnitTesting;
|
|
|
|
namespace CommunityToolkit.HighPerformance.UnitTests.Extensions;
|
|
|
|
[TestClass]
|
|
public class Test_IMemoryOwnerExtensions
|
|
{
|
|
[TestMethod]
|
|
public void Test_IMemoryOwnerExtensions_EmptyIMemoryOwnerStream()
|
|
{
|
|
MemoryOwner<byte> buffer = MemoryOwner<byte>.Empty;
|
|
|
|
Stream stream = buffer.AsStream();
|
|
|
|
Assert.IsNotNull(stream);
|
|
Assert.AreEqual(buffer.Length, 0);
|
|
Assert.AreEqual(stream.Length, 0);
|
|
Assert.IsTrue(stream.CanWrite);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryExtensions_IMemoryOwnerStream()
|
|
{
|
|
MemoryOwner<byte> buffer = MemoryOwner<byte>.Allocate(1024);
|
|
|
|
Stream stream = buffer.AsStream();
|
|
|
|
Assert.IsNotNull(stream);
|
|
Assert.AreEqual(stream.Length, buffer.Length);
|
|
Assert.IsTrue(stream.CanWrite);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryExtensions_IMemoryOwnerStream_DoesNotAlterExistingData()
|
|
{
|
|
MemoryOwner<byte> buffer = MemoryOwner<byte>.Allocate(1024);
|
|
|
|
// Fill the buffer with sample data
|
|
for (int i = 0; i < buffer.Length; i++)
|
|
{
|
|
buffer.Span[i] = unchecked((byte)(i & byte.MaxValue));
|
|
}
|
|
|
|
Stream stream = buffer.AsStream();
|
|
|
|
Assert.IsNotNull(stream);
|
|
Assert.AreEqual(stream.Length, buffer.Length);
|
|
Assert.IsTrue(stream.CanWrite);
|
|
|
|
// Validate that creating the stream doesn't alter the underlying buffer
|
|
for (int i = 0; i < buffer.Length; i++)
|
|
{
|
|
Assert.AreEqual(buffer.Span[i], unchecked((byte)(i & byte.MaxValue)));
|
|
}
|
|
}
|
|
}
|