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Remove packing

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This commit is contained in:
Andreas Müller
2025-11-13 08:22:03 +01:00
parent 7b5ef8d81e
commit 9edb35c015
6 changed files with 0 additions and 1032 deletions
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2
CHANGELOG.md
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@@ -17,8 +17,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Added
- `ArReader` and `ArWriter` for Unix archives
- `TarReader` and `TarWriter` for TAR archives
- `.AddRange()` for collections
- `.AddIfNotNull()` for collections
- `DomainComparer` ordering alphabetically from TLD to sub-domain

51
src/AMWD.Common/Packing/Ar/ArFileInfo.cs
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@@ -1,51 +0,0 @@
using System;
namespace AMWD.Common.Packing.Ar
{
/// <summary>
/// Represents the file information saved in the archive.
/// </summary>
[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
public class ArFileInfo
{
/// <summary>
/// Gets or sets the file name.
/// </summary>
public string FileName { get; set; }
/// <summary>
/// Gets or sets the file size in bytes.
/// </summary>
public long FileSize { get; set; }
/// <summary>
/// Gets or sets the timestamp of the last modification.
/// </summary>
public DateTime ModifyTime { get; set; }
/// <summary>
/// Gets or sets the user id.
/// </summary>
public int UserId { get; set; }
/// <summary>
/// Gets or sets the group id.
/// </summary>
public int GroupId { get; set; }
/// <summary>
/// Gets or sets the access mode in decimal (not octal!).
/// </summary>
/// <remarks>
/// To see the octal representation use <c>Convert.ToString(Mode, 8)</c>.
/// </remarks>
public int Mode { get; set; }
}
internal class ArFileInfoExtended : ArFileInfo
{
public long HeaderPosition { get; set; }
public long DataPosition { get; set; }
}
}

176
src/AMWD.Common/Packing/Ar/ArReader.cs
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@@ -1,176 +0,0 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace AMWD.Common.Packing.Ar
{
/// <summary>
/// Reads UNIX ar (archive) files in the GNU format.
/// </summary>
public class ArReader
{
// Source: http://en.wikipedia.org/wiki/Ar_%28Unix%29
private readonly Stream _inStream;
private readonly List<ArFileInfoExtended> _files = [];
private readonly long _streamStartPosition;
/// <summary>
/// Initializes a new instance of the <see cref="ArReader"/> class.
/// </summary>
/// <param name="inStream">The stream to read the archive from.</param>
public ArReader(Stream inStream)
{
if (!inStream.CanRead || !inStream.CanSeek)
throw new ArgumentException("Stream not readable or seekable", nameof(inStream));
_streamStartPosition = inStream.Position;
_inStream = inStream;
Initialize();
}
/// <summary>
/// Returns a list with all filenames of the archive.
/// </summary>
public IEnumerable<string> GetFileList()
=> _files.Select(fi => fi.FileName).ToList();
/// <summary>
/// Returns the file info of a specific file in the archive.
/// </summary>
/// <param name="fileName">The name of the specific file.</param>
public ArFileInfo GetFileInfo(string fileName)
{
return _files
.Where(fi => fi.FileName == fileName)
.Select(fi => new ArFileInfo
{
FileName = fi.FileName,
FileSize = fi.FileSize,
GroupId = fi.GroupId,
Mode = fi.Mode,
ModifyTime = fi.ModifyTime,
UserId = fi.UserId
})
.FirstOrDefault();
}
/// <summary>
/// Reads a file from the archive into a stream.
/// </summary>
/// <param name="fileName">The file name in the archive.</param>
/// <param name="outStream">The output stream.</param>
public void ReadFile(string fileName, Stream outStream)
{
if (!outStream.CanWrite)
throw new ArgumentException("Stream not writable", nameof(outStream));
var info = _files.Where(fi => fi.FileName == fileName).FirstOrDefault();
if (info == null)
return;
long bytesToRead = info.FileSize;
byte[] buffer = new byte[1024 * 1024];
_inStream.Seek(info.DataPosition, SeekOrigin.Begin);
while (bytesToRead > 0)
{
int readCount = (int)Math.Min(bytesToRead, buffer.Length);
_inStream.Read(buffer, 0, readCount);
outStream.Write(buffer, 0, readCount);
bytesToRead -= readCount;
}
_inStream.Seek(_streamStartPosition, SeekOrigin.Begin);
}
/// <summary>
/// Reads a fie from the archive and saves it to disk.
/// </summary>
/// <param name="fileName">The file name in the archive.</param>
/// <param name="destinationPath">The destination path on disk.</param>
public void ReadFile(string fileName, string destinationPath)
{
var info = _files.Where(fi => fi.FileName == fileName).FirstOrDefault();
if (info == null)
return;
using (var fs = File.OpenWrite(destinationPath))
{
ReadFile(fileName, fs);
}
File.SetLastWriteTimeUtc(destinationPath, info.ModifyTime);
}
private void Initialize()
{
// Reset stream
_inStream.Seek(_streamStartPosition, SeekOrigin.Begin);
// Read header
string header = ReadAsciiString(8);
if (header != "!<arch>\n")
throw new FormatException("The file stream is no archive");
// Create file list
while (_inStream.Position < _inStream.Length)
{
var info = ReadFileHeader();
_files.Add(info);
// Move stream behind file content
_inStream.Seek(info.FileSize, SeekOrigin.Current);
// Align to even offsets (padded with LF bytes)
if (_inStream.Position % 2 != 0)
_inStream.Seek(1, SeekOrigin.Current);
}
// Reset stream
_inStream.Seek(_streamStartPosition, SeekOrigin.Begin);
}
private string ReadAsciiString(int byteCount)
{
byte[] buffer = new byte[byteCount];
_inStream.Read(buffer, 0, byteCount);
return Encoding.ASCII.GetString(buffer);
}
private ArFileInfoExtended ReadFileHeader()
{
long startPosition = _inStream.Position;
string fileName = ReadAsciiString(16).Trim();
int.TryParse(ReadAsciiString(12).Trim(), out int unixTimestamp);
int.TryParse(ReadAsciiString(6).Trim(), out int userId);
int.TryParse(ReadAsciiString(6).Trim(), out int groupId);
int mode = Convert.ToInt32(ReadAsciiString(8).Trim(), 8);
long.TryParse(ReadAsciiString(10).Trim(), out long fileSize);
// file magic
byte[] magic = new byte[2];
_inStream.Read(magic, 0, magic.Length);
if (magic[0] != 0x60 || magic[1] != 0x0A) // `\n
throw new FormatException("Invalid file magic");
return new ArFileInfoExtended
{
HeaderPosition = startPosition,
DataPosition = _inStream.Position,
FileName = fileName,
ModifyTime = DateTimeOffset.FromUnixTimeSeconds(unixTimestamp).DateTime,
UserId = userId,
GroupId = groupId,
Mode = mode,
FileSize = fileSize
};
}
}
}

146
src/AMWD.Common/Packing/Ar/ArWriter.cs
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@@ -1,146 +0,0 @@
using System;
using System.IO;
using System.Text;
namespace AMWD.Common.Packing.Ar
{
/// <summary>
/// Writes UNIX ar (archive) files in the GNU format.
/// </summary>
/// <remarks>
/// Copied from: <see href="https://github.com/ygoe/DotnetMakeDeb/blob/v1.1.0/DotnetMakeDeb/Ar/ArWriter.cs">DotnetMakeDeb</see>
/// </remarks>
public class ArWriter
{
// Source: http://en.wikipedia.org/wiki/Ar_%28Unix%29
private readonly Stream _outStream;
/// <summary>
/// Initialises a new instance of the <see cref="ArWriter"/> class.
/// </summary>
/// <param name="outStream">The stream to write the archive to.</param>
public ArWriter(Stream outStream)
{
if (!outStream.CanWrite)
throw new ArgumentException("Stream not writable", nameof(outStream));
_outStream = outStream;
Initialize();
}
/// <summary>
/// Writes a file from disk to the archive.
/// </summary>
/// <param name="fileName">The name of the file to copy.</param>
/// <param name="userId">The user ID of the file in the archive.</param>
/// <param name="groupId">The group ID of the file in the archive.</param>
/// <param name="mode">The mode of the file in the archive (decimal).</param>
public void WriteFile(string fileName, int userId = 0, int groupId = 0, int mode = 33188 /* 0100644 */)
{
var fi = new FileInfo(fileName);
using var fs = File.OpenRead(fileName);
WriteFile(fs, fi.Name, fi.LastWriteTimeUtc, userId, groupId, mode);
}
/// <summary>
/// Writes a file from a Stream to the archive.
/// </summary>
/// <param name="stream">The stream to read the file contents from.</param>
/// <param name="fileName">The name of the file in the archive.</param>
/// <param name="modifyTime">The last modification time of the file in the archive.</param>
/// <param name="userId">The user ID of the file in the archive.</param>
/// <param name="groupId">The group ID of the file in the archive.</param>
/// <param name="mode">The mode of the file in the archive (decimal).</param>
public void WriteFile(Stream stream, string fileName, DateTime modifyTime, int userId = 0, int groupId = 0, int mode = 33188 /* 0100644 */)
{
// Write file header
WriteFileHeader(fileName, modifyTime, userId, groupId, mode, stream.Length);
// Write file contents
stream.CopyTo(_outStream);
// Align to even offsets, pad with LF bytes
if ((_outStream.Position % 2) != 0)
{
byte[] bytes = [0x0A];
_outStream.Write(bytes, 0, 1);
}
}
/// <summary>
/// Writes the archive header.
/// </summary>
private void Initialize()
{
WriteAsciiString("!<arch>\n");
}
/// <summary>
/// Writes a file header.
/// </summary>
private void WriteFileHeader(string fileName, DateTime modifyTime, int userId, int groupId, int mode, long fileSize)
{
// File name
if (fileName.Length > 16)
throw new ArgumentException("Long file names are not supported.");
WriteAsciiString(fileName.PadRight(16, ' '));
// File modification timestamp
long unixTime = ((DateTimeOffset)DateTime.SpecifyKind(modifyTime, DateTimeKind.Utc)).ToUnixTimeSeconds();
WriteAsciiString(unixTime.ToString().PadRight(12, ' '));
// User ID
if (userId >= 0)
{
WriteAsciiString(userId.ToString().PadRight(6, ' '));
}
else
{
WriteAsciiString(" ");
}
// Group ID
if (groupId >= 0)
{
WriteAsciiString(groupId.ToString().PadRight(6, ' '));
}
else
{
WriteAsciiString(" ");
}
// File mode
if (mode >= 0)
{
WriteAsciiString(Convert.ToString(mode, 8).PadRight(8, ' '));
}
else
{
WriteAsciiString(" ");
}
// File size in bytes
if (fileSize < 0 || 10000000000 <= fileSize)
throw new ArgumentOutOfRangeException(nameof(fileSize), "Invalid file size."); // above 9.32 GB
WriteAsciiString(fileSize.ToString().PadRight(10, ' '));
// File magic
byte[] bytes = [0x60, 0x0A];
_outStream.Write(bytes, 0, 2);
}
/// <summary>
/// Writes a string using ASCII encoding.
/// </summary>
/// <param name="str">The string to write to the output stream.</param>
private void WriteAsciiString(string str)
{
byte[] bytes = Encoding.ASCII.GetBytes(str);
_outStream.Write(bytes, 0, bytes.Length);
}
}
}

353
test/AMWD.Common.Tests/Packing/Ar/ArReaderTest.cs
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@@ -1,353 +0,0 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using AMWD.Common.Packing.Ar;
namespace AMWD.Common.Tests.Packing.Ar
{
[TestClass]
public class ArReaderTest
{
private readonly DateTime _fixedDateTime = new(2023, 03, 01, 10, 20, 30, 0, DateTimeKind.Utc);
private Dictionary<string, ArFileInfo> _files;
private MemoryStream _inStream;
[TestInitialize]
public void Initialize()
{
_files = new Dictionary<string, ArFileInfo>
{
{
"abcd.tmp",
new ArFileInfo
{
FileName = "abcd.tmp",
FileSize = 14,
GroupId = 456,
Mode = 33188,
ModifyTime = _fixedDateTime,
UserId = 123
}
},
{
"efgh.tmp",
new ArFileInfo
{
FileName = "efgh.tmp",
FileSize = 14,
GroupId = 456,
Mode = 33188,
ModifyTime = _fixedDateTime,
UserId = 123
}
},
{
"ijkl.tmp",
new ArFileInfo
{
FileName = "ijkl.tmp",
FileSize = 13,
GroupId = 456,
Mode = 33188,
ModifyTime = _fixedDateTime,
UserId = 123
}
}
};
_inStream = new MemoryStream();
_inStream.Write(Encoding.ASCII.GetBytes("!<arch>\n"));
foreach (var file in _files)
{
int unixSeconds = (int)file.Value.ModifyTime.Subtract(DateTime.UnixEpoch).TotalSeconds;
_inStream.Write(Encoding.ASCII.GetBytes($"{file.Key,-16}{unixSeconds,-12}123 456 100644 {file.Value.FileSize,-10}`\n"));
_inStream.Write(Encoding.UTF8.GetBytes(new string('a', (int)file.Value.FileSize)));
if (file.Value.FileSize % 2 != 0)
_inStream.Write(Encoding.ASCII.GetBytes("\n"));
}
_inStream.Seek(0, SeekOrigin.Begin);
}
[TestCleanup]
public void Cleanup()
{
_inStream.Dispose();
_inStream = null;
}
[TestMethod]
public void ShouldInitializeArchive()
{
// Arrange
_inStream.Dispose();
_inStream = new MemoryStream();
_inStream.Write(Encoding.ASCII.GetBytes("!<arch>\n"));
_inStream.Seek(0, SeekOrigin.Begin);
// Act
var reader = new ArReader(_inStream);
// Assert
Assert.IsNotNull(reader);
Assert.IsFalse(reader.GetFileList().Any());
}
[TestMethod]
public void ShouldInitializeWithFiles()
{
// Arrange
// Act
var reader = new ArReader(_inStream);
// Assert
Assert.IsNotNull(reader);
Assert.IsTrue(reader.GetFileList().Any());
}
[TestMethod]
public void ShouldListFileNames()
{
// Arrange
var reader = new ArReader(_inStream);
// Act
var fileList = reader.GetFileList().ToList();
// Assert
Assert.IsNotNull(reader);
Assert.AreEqual(_files.Count, fileList.Count);
foreach (string name in _files.Keys)
Assert.IsTrue(fileList.Contains(name));
}
[TestMethod]
public void ShouldReturnValidFileInfo()
{
// Arrange
var infos = new List<ArFileInfo>();
var reader = new ArReader(_inStream);
// Act
foreach (string name in _files.Keys)
infos.Add(reader.GetFileInfo(name));
// Assert
Assert.IsNotNull(reader);
Assert.AreEqual(_files.Count, infos.Count);
foreach (var expected in _files.Values)
{
var actual = infos.Single(fi => fi.FileName == expected.FileName);
Assert.AreEqual(expected.FileName, actual.FileName);
Assert.AreEqual(expected.FileSize, actual.FileSize);
Assert.AreEqual(expected.GroupId, actual.GroupId);
Assert.AreEqual(expected.Mode, actual.Mode);
Assert.AreEqual(expected.ModifyTime, actual.ModifyTime);
Assert.AreEqual(expected.UserId, actual.UserId);
}
}
[TestMethod]
public void ShouldReturnValidFileContent()
{
// Arrange
var contents = new Dictionary<string, string>();
var reader = new ArReader(_inStream);
// Act
foreach (string name in _files.Keys)
{
using var ms = new MemoryStream();
reader.ReadFile(name, ms);
ms.Seek(0, SeekOrigin.Begin);
contents.Add(name, Encoding.UTF8.GetString(ms.ToArray()));
}
// Assert
Assert.IsNotNull(reader);
Assert.AreEqual(_files.Count, contents.Count);
foreach (var expected in _files.Values)
{
string content = contents[expected.FileName];
if (expected.FileSize % 2 != 0)
Assert.AreEqual(13, content.Length);
else
Assert.AreEqual(14, content.Length);
Assert.AreEqual(new string('a', (int)expected.FileSize), content);
}
}
[TestMethod]
public void ShouldWriteFileToDisk()
{
// Arrange
string tmpFile = Path.GetTempFileName();
var reader = new ArReader(_inStream);
try
{
// Act
using var ms = new MemoryStream();
reader.ReadFile("abcd.tmp", ms);
reader.ReadFile("abcd.tmp", tmpFile);
// Assert
CollectionAssert.AreEqual(ms.ToArray(), File.ReadAllBytes(tmpFile));
}
finally
{
File.Delete(tmpFile);
}
}
[TestMethod]
[ExpectedException(typeof(ArgumentException))]
public void ShouldThrowExceptionOnMissingRead()
{
// Arrange
using var stream = new OverrideStream();
stream.CanReadOR = false;
stream.CanSeekOR = true;
stream.CanWriteOR = true;
// Act
var reader = new ArReader(stream);
// Assert - ArgumentException
Assert.Fail();
}
[TestMethod]
[ExpectedException(typeof(ArgumentException))]
public void ShouldThrowExceptionOnMissingSeek()
{
// Arrange
using var stream = new OverrideStream();
stream.CanReadOR = true;
stream.CanSeekOR = false;
stream.CanWriteOR = true;
// Act
var reader = new ArReader(stream);
// Assert - ArgumentException
Assert.Fail();
}
[TestMethod]
[ExpectedException(typeof(ArgumentException))]
public void ShouldThrowExceptionOnMissingWrite()
{
// Arrange
using var stream = new OverrideStream();
stream.CanReadOR = true;
stream.CanSeekOR = true;
stream.CanWriteOR = false;
var reader = new ArReader(_inStream);
// Act
reader.ReadFile("abcd.tmp", stream);
// Assert - ArgumentException
Assert.Fail();
}
[TestMethod]
[ExpectedException(typeof(FormatException))]
public void ShouldThrowExceptionOnInvalidArchive()
{
// Arrange
_inStream.Seek(8, SeekOrigin.Begin);
// Act
_ = new ArReader(_inStream);
// Assert - FormatException
Assert.Fail();
}
[TestMethod]
[ExpectedException(typeof(FormatException))]
public void ShouldThrowExceptionOnInvalidMagic()
{
// Arrange
_inStream.Seek(0, SeekOrigin.End);
_inStream.Write(Encoding.ASCII.GetBytes($"{"foo.bar",-16}{"123456789",-12}123 456 100644 {"0",-10}´\n"));
_inStream.Seek(0, SeekOrigin.Begin);
// Act
_ = new ArReader(_inStream);
// Assert - FormatException
Assert.Fail();
}
[TestMethod]
public void ShouldWriteNothingToStreamForMissingFile()
{
// Arrange
var reader = new ArReader(_inStream);
// Act
using var ms = new MemoryStream();
reader.ReadFile("foo.bar", ms);
ms.Seek(0, SeekOrigin.Begin);
// Assert
Assert.AreEqual(0, ms.Length);
}
[TestMethod]
public void ShouldWriteNothingToDiskForMissingFile()
{
// Arrange
string tmpFile = Path.GetTempFileName();
var reader = new ArReader(_inStream);
try
{
// Act
reader.ReadFile("foo.bar", tmpFile);
// Assert
Assert.AreEqual(0, new FileInfo(tmpFile).Length);
}
finally
{
File.Delete(tmpFile);
}
}
private class OverrideStream : MemoryStream
{
public override bool CanWrite => CanWriteOR;
public bool CanWriteOR { get; set; }
public override bool CanSeek => CanSeekOR;
public bool CanSeekOR { get; set; }
public override bool CanRead => CanReadOR;
public bool CanReadOR { get; set; }
}
}
}

304
test/AMWD.Common.Tests/Packing/Ar/ArWriterTest.cs
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@@ -1,304 +0,0 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using AMWD.Common.Packing.Ar;
namespace AMWD.Common.Tests.Packing.Ar
{
[TestClass]
public class ArWriterTest
{
private readonly DateTime _fixedDateTime = new(2023, 03, 01, 10, 20, 30, 0, DateTimeKind.Utc);
private readonly Dictionary<string, string> _files = [];
private MemoryStream _outStream;
[TestInitialize]
public void Initialize()
{
_files.Clear();
for (int i = 0; i < 3; i++)
{
var (filePath, content) = GenerateTestFile();
_files.Add(filePath, content);
}
_outStream = new MemoryStream();
}
[TestCleanup]
public void Cleanup()
{
foreach (var kvp in _files)
File.Delete(kvp.Key);
_files.Clear();
_outStream.Dispose();
_outStream = null;
}
[TestMethod]
public void ShouldInitializeArchive()
{
// Arrange
byte[] initBytes = new byte[8];
// Act
_ = new ArWriter(_outStream);
_outStream.Seek(0, SeekOrigin.Begin);
// Assert
Assert.AreEqual(initBytes.Length, _outStream.Length);
_outStream.Read(initBytes, 0, initBytes.Length);
CollectionAssert.AreEqual(Encoding.ASCII.GetBytes("!<arch>\n"), initBytes);
}
[TestMethod]
public void ShouldWriteOneFile()
{
// Arrange
var firstFileKvp = _files.First();
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(firstFileKvp.Key, 123, 456);
_outStream.Seek(8, SeekOrigin.Begin); // set behind init bytes
// Assert
Assert.AreEqual(8 + headerBytes.Length + contentBytes.Length, _outStream.Length);
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(firstFileKvp.Key),-16}1677666030 123 456 100644 14 `\n", header);
Assert.AreEqual(firstFileKvp.Value, content);
}
[TestMethod]
public void ShouldWriteMultipleFiles()
{
// Arrange
var writer = new ArWriter(_outStream);
// Act
foreach (var kvp in _files)
writer.WriteFile(kvp.Key, 123, 456);
_outStream.Seek(8, SeekOrigin.Begin);
// Assert
Assert.AreEqual(8 + 3 * 60 + 3 * 14, _outStream.Length);
foreach (var kvp in _files)
{
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(kvp.Key),-16}1677666030 123 456 100644 14 `\n", header);
Assert.AreEqual(kvp.Value, content);
}
}
[TestMethod]
public void ShouldPadToEven()
{
// Arrange
var (filePath, fileContent) = GenerateTestFile(13);
try
{
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(filePath, 123, 456);
_outStream.Seek(8, SeekOrigin.Begin);
// Assert
Assert.AreEqual(8 + headerBytes.Length + contentBytes.Length, _outStream.Length);
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(filePath),-16}1677666030 123 456 100644 13 `\n", header);
Assert.AreEqual(fileContent + "\n", content);
}
finally
{
File.Delete(filePath);
}
}
[TestMethod]
[ExpectedException(typeof(ArgumentException))]
public void ShouldFailOnFileNameTooLong()
{
// Arrange
var (filePath, _) = GenerateTestFile();
try
{
string path = Path.GetDirectoryName(filePath);
string fileName = Path.GetFileName(filePath);
fileName = fileName.PadLeft(20, 'a');
File.Move(filePath, Path.Combine(path, fileName));
filePath = Path.Combine(path, fileName);
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(filePath, 123, 456);
// Assert - Exception
Assert.Fail();
}
finally
{
File.Delete(filePath);
}
}
[TestMethod]
public void ShouldWriteEmptyOnNegativeUserId()
{
// Arrange
var firstFileKvp = _files.First();
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(firstFileKvp.Key, -123, 456);
_outStream.Seek(8, SeekOrigin.Begin);
// Assert
Assert.AreEqual(8 + headerBytes.Length + contentBytes.Length, _outStream.Length);
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(firstFileKvp.Key),-16}1677666030 456 100644 14 `\n", header);
Assert.AreEqual(firstFileKvp.Value, content);
}
[TestMethod]
public void ShouldWriteEmptyOnNegativeGroupId()
{
// Arrange
var firstFileKvp = _files.First();
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(firstFileKvp.Key, 123, -456);
_outStream.Seek(8, SeekOrigin.Begin);
// Assert
Assert.AreEqual(8 + headerBytes.Length + contentBytes.Length, _outStream.Length);
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(firstFileKvp.Key),-16}1677666030 123 100644 14 `\n", header);
Assert.AreEqual(firstFileKvp.Value, content);
}
[TestMethod]
public void ShouldWriteEmptyOnNegativeMode()
{
// Arrange
var firstFileKvp = _files.First();
byte[] headerBytes = new byte[60];
byte[] contentBytes = new byte[14];
var writer = new ArWriter(_outStream);
// Act
writer.WriteFile(firstFileKvp.Key, 123, 456, -1);
_outStream.Seek(8, SeekOrigin.Begin);
// Assert
Assert.AreEqual(8 + headerBytes.Length + contentBytes.Length, _outStream.Length);
_outStream.Read(headerBytes, 0, headerBytes.Length);
_outStream.Read(contentBytes, 0, contentBytes.Length);
string header = Encoding.ASCII.GetString(headerBytes);
string content = Encoding.UTF8.GetString(contentBytes);
Assert.AreEqual($"{Path.GetFileName(firstFileKvp.Key),-16}1677666030 123 456 14 `\n", header);
Assert.AreEqual(firstFileKvp.Value, content);
}
[TestMethod]
[ExpectedException(typeof(ArgumentException))]
public void ShouldFailOnNonWritableStream()
{
// Arrange
using var testStream = new NonWriteStream();
// Act
_ = new ArWriter(testStream);
// Assert - ArgumentException
Assert.Fail();
}
private (string filePath, string content) GenerateTestFile(int length = 14)
{
string filePath = Path.GetTempFileName();
string text = CryptographyHelper.GetRandomString(length);
File.WriteAllText(filePath, text);
File.SetLastWriteTimeUtc(filePath, _fixedDateTime);
return (filePath, text);
}
private class NonWriteStream : MemoryStream
{
public NonWriteStream()
: base()
{ }
public override bool CanWrite => false;
}
}
}