mirror of
https://github.com/chylex/.NET-Community-Toolkit.git
synced 2024-11-25 01:42:46 +01:00
334 lines
10 KiB
C#
334 lines
10 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;
|
|
using System.IO;
|
|
using System.Runtime.InteropServices;
|
|
using System.Threading.Tasks;
|
|
using Microsoft.VisualStudio.TestTools.UnitTesting;
|
|
|
|
namespace CommunityToolkit.HighPerformance.UnitTests.Streams;
|
|
|
|
[TestClass]
|
|
public partial class Test_MemoryStream
|
|
{
|
|
[TestMethod]
|
|
public void Test_MemoryStream_Lifecycle()
|
|
{
|
|
Memory<byte> memory = new byte[100];
|
|
|
|
Stream stream = memory.AsStream();
|
|
|
|
Assert.IsTrue(stream.CanRead);
|
|
Assert.IsTrue(stream.CanSeek);
|
|
Assert.IsTrue(stream.CanWrite);
|
|
Assert.AreEqual(stream.Length, memory.Length);
|
|
Assert.AreEqual(stream.Position, 0);
|
|
|
|
stream.Dispose();
|
|
|
|
Assert.IsFalse(stream.CanRead);
|
|
Assert.IsFalse(stream.CanSeek);
|
|
Assert.IsFalse(stream.CanWrite);
|
|
_ = Assert.ThrowsException<ObjectDisposedException>(() => stream.Length);
|
|
_ = Assert.ThrowsException<ObjectDisposedException>(() => stream.Position);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryStream_Seek()
|
|
{
|
|
Stream stream = new byte[100].AsMemory().AsStream();
|
|
|
|
Assert.AreEqual(stream.Position, 0);
|
|
|
|
stream.Position = 42;
|
|
|
|
Assert.AreEqual(stream.Position, 42);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Position = -1);
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Position = 120);
|
|
|
|
_ = stream.Seek(0, SeekOrigin.Begin);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(-1, SeekOrigin.Begin));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(120, SeekOrigin.Begin));
|
|
|
|
Assert.AreEqual(stream.Position, 0);
|
|
|
|
_ = stream.Seek(-1, SeekOrigin.End);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(20, SeekOrigin.End));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(-120, SeekOrigin.End));
|
|
|
|
Assert.AreEqual(stream.Position, stream.Length - 1);
|
|
|
|
_ = stream.Seek(42, SeekOrigin.Begin);
|
|
_ = stream.Seek(20, SeekOrigin.Current);
|
|
_ = stream.Seek(-30, SeekOrigin.Current);
|
|
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(-64, SeekOrigin.Current));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Seek(80, SeekOrigin.Current));
|
|
|
|
Assert.AreEqual(stream.Position, 32);
|
|
}
|
|
|
|
// See https://github.com/CommunityToolkit/WindowsCommunityToolkit/issues/3536
|
|
[TestMethod]
|
|
public void Test_MemoryStream_WriteToEndAndRefreshPosition()
|
|
{
|
|
byte[] array = new byte[10];
|
|
byte[] temp = new byte[1];
|
|
ReadOnlyMemory<byte> memory = array;
|
|
|
|
using Stream? stream = memory.AsStream();
|
|
|
|
for (int i = 0; i < array.Length; i++)
|
|
{
|
|
int read = stream.Read(temp, 0, 1);
|
|
|
|
Assert.AreEqual(read, 1);
|
|
Assert.AreEqual(stream.Position, i + 1);
|
|
}
|
|
|
|
Assert.AreEqual(stream.Position, array.Length);
|
|
|
|
// These should not throw, seeking to the end is valid
|
|
stream.Position = stream.Position;
|
|
Assert.AreEqual(stream.Position, array.Length);
|
|
|
|
_ = stream.Seek(array.Length, SeekOrigin.Begin);
|
|
Assert.AreEqual(stream.Position, array.Length);
|
|
|
|
_ = stream.Seek(0, SeekOrigin.Current);
|
|
Assert.AreEqual(stream.Position, array.Length);
|
|
|
|
_ = stream.Seek(0, SeekOrigin.End);
|
|
Assert.AreEqual(stream.Position, array.Length);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryStream_ReadWrite_Array()
|
|
{
|
|
Stream stream = new byte[100].AsMemory().AsStream();
|
|
|
|
byte[] data = CreateRandomData(64);
|
|
|
|
stream.Write(data, 0, data.Length);
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
|
|
stream.Position = 0;
|
|
|
|
byte[] result = new byte[data.Length];
|
|
|
|
int bytesRead = stream.Read(result, 0, result.Length);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
Assert.IsTrue(data.AsSpan().SequenceEqual(result));
|
|
|
|
_ = Assert.ThrowsException<ArgumentNullException>(() => stream.Write(null!, 0, 10));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Write(data, -1, 10));
|
|
_ = Assert.ThrowsException<ArgumentException>(() => stream.Write(data, 200, 10));
|
|
_ = Assert.ThrowsException<ArgumentOutOfRangeException>(() => stream.Write(data, 0, -24));
|
|
_ = Assert.ThrowsException<ArgumentException>(() => stream.Write(data, 0, 200));
|
|
|
|
stream.Dispose();
|
|
|
|
_ = Assert.ThrowsException<ObjectDisposedException>(() => stream.Write(data, 0, data.Length));
|
|
}
|
|
|
|
[TestMethod]
|
|
public async Task Test_MemoryStream_ReadWriteAsync_Array()
|
|
{
|
|
Stream stream = new byte[100].AsMemory().AsStream();
|
|
|
|
byte[] data = CreateRandomData(64);
|
|
|
|
await stream.WriteAsync(data, 0, data.Length);
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
|
|
stream.Position = 0;
|
|
|
|
byte[] result = new byte[data.Length];
|
|
|
|
int bytesRead = await stream.ReadAsync(result, 0, result.Length);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
Assert.IsTrue(data.AsSpan().SequenceEqual(result));
|
|
|
|
_ = await Assert.ThrowsExceptionAsync<ArgumentNullException>(() => stream.WriteAsync(null!, 0, 10));
|
|
_ = await Assert.ThrowsExceptionAsync<ArgumentOutOfRangeException>(() => stream.WriteAsync(data, -1, 10));
|
|
_ = await Assert.ThrowsExceptionAsync<ArgumentException>(() => stream.WriteAsync(data, 200, 10));
|
|
_ = await Assert.ThrowsExceptionAsync<ArgumentOutOfRangeException>(() => stream.WriteAsync(data, 0, -24));
|
|
_ = await Assert.ThrowsExceptionAsync<ArgumentException>(() => stream.WriteAsync(data, 0, 200));
|
|
|
|
stream.Dispose();
|
|
|
|
_ = await Assert.ThrowsExceptionAsync<ObjectDisposedException>(() => stream.WriteAsync(data, 0, data.Length));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryStream_ReadWriteByte()
|
|
{
|
|
Stream stream = new byte[4].AsMemory().AsStream();
|
|
|
|
ReadOnlySpan<byte> data = stackalloc byte[] { 1, 128, 255, 32 };
|
|
|
|
foreach (HighPerformance.Enumerables.ReadOnlySpanEnumerable<byte>.Item item in data.Enumerate())
|
|
{
|
|
Assert.AreEqual(stream.Position, item.Index);
|
|
|
|
stream.WriteByte(item.Value);
|
|
}
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
|
|
stream.Position = 0;
|
|
|
|
Span<byte> result = stackalloc byte[4];
|
|
|
|
foreach (ref byte value in result)
|
|
{
|
|
value = checked((byte)stream.ReadByte());
|
|
}
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
Assert.IsTrue(data.SequenceEqual(result));
|
|
|
|
_ = Assert.ThrowsException<ArgumentException>(() => stream.WriteByte(128));
|
|
|
|
int exitCode = stream.ReadByte();
|
|
|
|
Assert.AreEqual(exitCode, -1);
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryStream_ReadWrite_Span()
|
|
{
|
|
Stream stream = new byte[100].AsMemory().AsStream();
|
|
|
|
Memory<byte> data = CreateRandomData(64);
|
|
|
|
// This will use the extension when on .NET Standard 2.0, as the
|
|
// Stream class doesn't have Spam<T> or Memory<T> public APIs there.
|
|
stream.Write(data.Span);
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
|
|
stream.Position = 0;
|
|
|
|
Span<byte> result = new byte[data.Length];
|
|
|
|
int bytesRead = stream.Read(result);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
Assert.IsTrue(data.Span.SequenceEqual(result));
|
|
}
|
|
|
|
[TestMethod]
|
|
public async Task Test_MemoryStream_ReadWriteAsync_Memory()
|
|
{
|
|
Stream stream = new byte[100].AsMemory().AsStream();
|
|
|
|
Memory<byte> data = CreateRandomData(64);
|
|
|
|
await stream.WriteAsync(data);
|
|
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
|
|
stream.Position = 0;
|
|
|
|
Memory<byte> result = new byte[data.Length];
|
|
|
|
int bytesRead = await stream.ReadAsync(result);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(stream.Position, data.Length);
|
|
Assert.IsTrue(data.Span.SequenceEqual(result.Span));
|
|
}
|
|
|
|
[TestMethod]
|
|
public void Test_MemoryStream_CopyTo()
|
|
{
|
|
Stream source = new byte[100].AsMemory().AsStream();
|
|
|
|
Memory<byte> data = CreateRandomData(64);
|
|
|
|
source.Write(data.Span);
|
|
|
|
Assert.AreEqual(source.Position, data.Length);
|
|
|
|
source.Position = 0;
|
|
|
|
Stream destination = new byte[100].AsMemory().AsStream();
|
|
|
|
source.CopyTo(destination);
|
|
|
|
Assert.AreEqual(source.Position, destination.Position);
|
|
|
|
destination.Position = 0;
|
|
|
|
Memory<byte> result = new byte[data.Length];
|
|
|
|
int bytesRead = destination.Read(result.Span);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(destination.Position, data.Length);
|
|
Assert.IsTrue(data.Span.SequenceEqual(result.Span));
|
|
}
|
|
|
|
[TestMethod]
|
|
public async Task Test_MemoryStream_CopyToAsync()
|
|
{
|
|
Stream source = new byte[100].AsMemory().AsStream();
|
|
|
|
Memory<byte> data = CreateRandomData(64);
|
|
|
|
await source.WriteAsync(data);
|
|
|
|
Assert.AreEqual(source.Position, data.Length);
|
|
|
|
source.Position = 0;
|
|
|
|
Stream destination = new byte[100].AsMemory().AsStream();
|
|
|
|
await source.CopyToAsync(destination);
|
|
|
|
Assert.AreEqual(source.Position, destination.Position);
|
|
|
|
destination.Position = 0;
|
|
|
|
Memory<byte> result = new byte[data.Length];
|
|
|
|
int bytesRead = await destination.ReadAsync(result);
|
|
|
|
Assert.AreEqual(bytesRead, result.Length);
|
|
Assert.AreEqual(destination.Position, data.Length);
|
|
Assert.IsTrue(data.Span.SequenceEqual(result.Span));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a random <see cref="byte"/> array filled with random data.
|
|
/// </summary>
|
|
/// <param name="count">The number of array items to create.</param>
|
|
/// <returns>The returned random array.</returns>
|
|
internal static byte[] CreateRandomData(int count)
|
|
{
|
|
Random? random = new(DateTime.Now.Ticks.GetHashCode());
|
|
|
|
byte[] data = new byte[count];
|
|
|
|
foreach (ref byte n in MemoryMarshal.AsBytes(data.AsSpan()))
|
|
{
|
|
n = (byte)random.Next(0, byte.MaxValue);
|
|
}
|
|
|
|
return data;
|
|
}
|
|
}
|