aspnetcore/test/Kestrel.Core.Tests/AsciiDecoding.cs

77 lines
2.4 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Linq;
using System.Numerics;
using Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure;
using Xunit;
namespace Microsoft.AspNetCore.Server.Kestrel.Core.Tests
{
public class AsciiDecodingTests
{
[Fact]
private void FullAsciiRangeSupported()
{
var byteRange = Enumerable.Range(1, 127).Select(x => (byte)x);
var byteArray = byteRange
.Concat(byteRange)
.Concat(byteRange)
.Concat(byteRange)
.Concat(byteRange)
.Concat(byteRange)
.ToArray();
var s = new Span<byte>(byteArray).GetAsciiStringNonNullCharacters();
Assert.Equal(s.Length, byteArray.Length);
for (var i = 1; i < byteArray.Length; i++)
{
var sb = (byte)s[i];
var b = byteArray[i];
Assert.Equal(sb, b);
}
}
[Theory]
[InlineData(0x00)]
[InlineData(0x80)]
private void ExceptionThrownForZeroOrNonAscii(byte b)
{
for (var length = 1; length < Vector<sbyte>.Count * 4; length++)
{
for (var position = 0; position < length; position++)
{
var byteRange = Enumerable.Range(1, length).Select(x => (byte)x).ToArray();
byteRange[position] = b;
Assert.Throws<InvalidOperationException>(() => new Span<byte>(byteRange).GetAsciiStringNonNullCharacters());
}
}
}
[Fact]
private void LargeAllocationProducesCorrectResults()
{
var byteRange = Enumerable.Range(0, 16384 + 64).Select(x => (byte)((x & 0x7f) | 0x01)).ToArray();
var expectedByteRange = byteRange.Concat(byteRange).ToArray();
var s = new Span<byte>(expectedByteRange).GetAsciiStringNonNullCharacters();
Assert.Equal(expectedByteRange.Length, s.Length);
for (var i = 0; i < expectedByteRange.Length; i++)
{
var sb = (byte)((s[i] & 0x7f) | 0x01);
var b = expectedByteRange[i];
Assert.Equal(sb, b);
}
}
}
}