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Fix a bug in ConvertToFsCommonPath

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Alex Barney 2023-10-13 23:54:13 -07:00
parent 655fed169a
commit 279f86d910
2 changed files with 44 additions and 2 deletions
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2
src/LibHac/Fs/Fsa/MountUtility.cs
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@ -292,7 +292,7 @@ public static class MountUtility
if (mountNameLength + commonPathLength > commonPathBuffer.Length) if (mountNameLength + commonPathLength > commonPathBuffer.Length)
return ResultFs.TooLongPath.Log(); return ResultFs.TooLongPath.Log();
StringUtils.Copy(commonPathBuffer.Slice(commonPathLength), subPath); StringUtils.Copy(commonPathBuffer.Slice(mountNameLength), subPath);
return Result.Success; return Result.Success;
} }
} }

44
tests/LibHac.Tests/Fs/FsaTests/MountUtilityTests.cs
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@ -1,8 +1,11 @@
using LibHac.Common; using System;
using LibHac.Common;
using LibHac.Fs; using LibHac.Fs;
using LibHac.Fs.Fsa; using LibHac.Fs.Fsa;
using LibHac.Fs.Shim; using LibHac.Fs.Shim;
using LibHac.Tests.Fs.FileSystemClientTests; using LibHac.Tests.Fs.FileSystemClientTests;
using LibHac.Tools.Fs;
using LibHac.Util;
using Xunit; using Xunit;
namespace LibHac.Tests.Fs.FsaTests; namespace LibHac.Tests.Fs.FsaTests;
@ -32,4 +35,43 @@ public class MountUtilityTests
Assert.Success(fs.MountSdCard(mountName.ToU8Span())); Assert.Success(fs.MountSdCard(mountName.ToU8Span()));
Assert.Result(ResultFs.InvalidMountName, fs.GetEntryType(out _, path.ToU8Span())); Assert.Result(ResultFs.InvalidMountName, fs.GetEntryType(out _, path.ToU8Span()));
} }
private class TestCommonMountNameGenerator : ICommonMountNameGenerator
{
public void Dispose() { }
public Result GenerateCommonMountName(Span<byte> nameBuffer)
{
ReadOnlySpan<byte> mountName = "@Test"u8;
// Add 2 for the mount name separator and null terminator
int requiredNameBufferSize = StringUtils.GetLength(mountName, PathTool.MountNameLengthMax) + 2;
Assert.True(nameBuffer.Length >= requiredNameBufferSize);
var sb = new U8StringBuilder(nameBuffer);
sb.Append(mountName).Append(StringTraits.DriveSeparator);
Assert.Equal(sb.Length, requiredNameBufferSize - 1);
return Result.Success;
}
}
[Fact]
public void ConvertToFsCommonPath_MountedWithCommonPath_ReturnsCommonPath()
{
FileSystemClient fs = FileSystemServerFactory.CreateClient(true);
using var fileSystem = new UniqueRef<IFileSystem>(new InMemoryFileSystem());
using var mountNameGenerator = new UniqueRef<ICommonMountNameGenerator>(new TestCommonMountNameGenerator());
Assert.Success(fs.Register("mount"u8, ref fileSystem.Ref, ref mountNameGenerator.Ref));
byte[] outputPath = new byte[100];
Assert.Success(fs.ConvertToFsCommonPath(new U8SpanMutable(outputPath), "mount:/entry1/entry2"u8));
string expected = "@Test:/entry1/entry2";
string actual = StringUtils.Utf8ZToString(outputPath);
Assert.Equal(expected, actual);
}
} }