public void ShortNames()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
// Check we can find a short name in the same directory
using (Stream s = ntfs.OpenFile("ALongFileName.txt", FileMode.CreateNew)) {}
ntfs.SetShortName("ALongFileName.txt", "ALONG~01.TXT");
Assert.AreEqual("ALONG~01.TXT", ntfs.GetShortName("ALongFileName.txt"));
Assert.IsTrue(ntfs.FileExists("ALONG~01.TXT"));
// Check path handling
ntfs.CreateDirectory("DIR");
using (Stream s = ntfs.OpenFile(@"DIR\ALongFileName2.txt", FileMode.CreateNew)) { }
ntfs.SetShortName(@"DIR\ALongFileName2.txt", "ALONG~02.TXT");
Assert.AreEqual("ALONG~02.TXT", ntfs.GetShortName(@"DIR\ALongFileName2.txt"));
Assert.IsTrue(ntfs.FileExists(@"DIR\ALONG~02.TXT"));
// Check we can open a file by the short name
using (Stream s = ntfs.OpenFile("ALONG~01.TXT", FileMode.Open)) { }
// Delete the long name, and make sure the file is gone
ntfs.DeleteFile("ALONG~01.TXT");
Assert.IsFalse(ntfs.FileExists("ALONG~01.TXT"));
// Delete the short name, and make sure the file is gone
ntfs.DeleteFile(@"DIR\ALONG~02.TXT");
Assert.IsFalse(ntfs.FileExists(@"DIR\ALongFileName2.txt"));
}
public void Fragmented()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
ntfs.CreateDirectory(@"DIR");
byte[] buffer = new byte[4096];
for (int i = 0; i < 2500; ++i)
{
using (var stream = ntfs.OpenFile(@"DIR\file" + i + ".bin", FileMode.Create, FileAccess.ReadWrite))
{
stream.Write(buffer, 0, buffer.Length);
}
using (var stream = ntfs.OpenFile(@"DIR\" + i + ".bin", FileMode.Create, FileAccess.ReadWrite))
{
stream.Write(buffer, 0, buffer.Length);
}
}
for (int i = 0; i < 2500; ++i)
{
ntfs.DeleteFile(@"DIR\file" + i + ".bin");
}
// Create fragmented file (lots of small writes)
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.Create, FileAccess.ReadWrite))
{
for (int i = 0; i < 2500; ++i)
{
stream.Write(buffer, 0, buffer.Length);
}
}
// Try a large write
byte[] largeWriteBuffer = new byte[200 * 1024];
for (int i = 0; i < largeWriteBuffer.Length / 4096; ++i)
{
largeWriteBuffer[i * 4096] = (byte)i;
}
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
stream.Position = stream.Length - largeWriteBuffer.Length;
stream.Write(largeWriteBuffer, 0, largeWriteBuffer.Length);
}
// And a large read
byte[] largeReadBuffer = new byte[largeWriteBuffer.Length];
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
stream.Position = stream.Length - largeReadBuffer.Length;
stream.Read(largeReadBuffer, 0, largeReadBuffer.Length);
}
Assert.AreEqual(largeWriteBuffer, largeReadBuffer);
}
public void DeleteAlternateDataStreams()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
ntfs.OpenFile("AFILE.TXT", FileMode.Create).Close();
ntfs.OpenFile("AFILE.TXT:ALTSTREAM", FileMode.Create).Close();
Assert.AreEqual(1, ntfs.GetAlternateDataStreams("AFILE.TXT").Length);
ntfs.DeleteFile("AFILE.TXT:ALTSTREAM");
Assert.AreEqual(1, ntfs.GetFileSystemEntries("").Length);
Assert.AreEqual(0, ntfs.GetAlternateDataStreams("AFILE.TXT").Length);
}
public void ManyAttributes()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
using (Stream s = ntfs.OpenFile(@"file", FileMode.Create, FileAccess.ReadWrite))
{
s.WriteByte(32);
}
for (int i = 0; i < 50; ++i)
{
ntfs.CreateHardLink("file", "hl" + i);
}
using (Stream s = ntfs.OpenFile("hl35", FileMode.Open, FileAccess.ReadWrite))
{
Assert.AreEqual(32, s.ReadByte());
s.Position = 0;
s.WriteByte(12);
}
using (Stream s = ntfs.OpenFile("hl5", FileMode.Open, FileAccess.ReadWrite))
{
Assert.AreEqual(12, s.ReadByte());
}
for (int i = 0; i < 50; ++i)
{
ntfs.DeleteFile("hl" + i);
}
Assert.AreEqual(1, ntfs.GetFiles(@"\").Length);
ntfs.DeleteFile("file");
Assert.AreEqual(0, ntfs.GetFiles(@"\").Length);
}
public void DeleteAlternateDataStreams()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
ntfs.OpenFile("AFILE.TXT", FileMode.Create).Close();
ntfs.OpenFile("AFILE.TXT:ALTSTREAM", FileMode.Create).Close();
Assert.AreEqual(1, ntfs.GetAlternateDataStreams("AFILE.TXT").Length);
ntfs.DeleteFile("AFILE.TXT:ALTSTREAM");
Assert.AreEqual(1, ntfs.GetFileSystemEntries("").Length);
Assert.AreEqual(0, ntfs.GetAlternateDataStreams("AFILE.TXT").Length);
}
public void ShortNames()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
// Check we can find a short name in the same directory
using (Stream s = ntfs.OpenFile("ALongFileName.txt", FileMode.CreateNew)) {}
ntfs.SetShortName("ALongFileName.txt", "ALONG~01.TXT");
Assert.AreEqual("ALONG~01.TXT", ntfs.GetShortName("ALongFileName.txt"));
Assert.IsTrue(ntfs.FileExists("ALONG~01.TXT"));
// Check path handling
ntfs.CreateDirectory("DIR");
using (Stream s = ntfs.OpenFile(@"DIR\ALongFileName2.txt", FileMode.CreateNew)) { }
ntfs.SetShortName(@"DIR\ALongFileName2.txt", "ALONG~02.TXT");
Assert.AreEqual("ALONG~02.TXT", ntfs.GetShortName(@"DIR\ALongFileName2.txt"));
Assert.IsTrue(ntfs.FileExists(@"DIR\ALONG~02.TXT"));
// Check we can open a file by the short name
using (Stream s = ntfs.OpenFile("ALONG~01.TXT", FileMode.Open)) { }
// Delete the long name, and make sure the file is gone
ntfs.DeleteFile("ALONG~01.TXT");
Assert.IsFalse(ntfs.FileExists("ALONG~01.TXT"));
// Delete the short name, and make sure the file is gone
ntfs.DeleteFile(@"DIR\ALONG~02.TXT");
Assert.IsFalse(ntfs.FileExists(@"DIR\ALongFileName2.txt"));
}
public void ManyAttributes()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
using (Stream s = ntfs.OpenFile(@"file", FileMode.Create, FileAccess.ReadWrite))
{
s.WriteByte(32);
}
for (int i = 0; i < 50; ++i)
{
ntfs.CreateHardLink("file", "hl" + i);
}
using (Stream s = ntfs.OpenFile("hl35", FileMode.Open, FileAccess.ReadWrite))
{
Assert.AreEqual(32, s.ReadByte());
s.Position = 0;
s.WriteByte(12);
}
using (Stream s = ntfs.OpenFile("hl5", FileMode.Open, FileAccess.ReadWrite))
{
Assert.AreEqual(12, s.ReadByte());
}
for (int i = 0; i < 50; ++i)
{
ntfs.DeleteFile("hl" + i);
}
Assert.AreEqual(1, ntfs.GetFiles(@"\").Length);
ntfs.DeleteFile("file");
Assert.AreEqual(0, ntfs.GetFiles(@"\").Length);
}
public void Fragmented()
{
NtfsFileSystem ntfs = new FileSystemSource().NtfsFileSystem();
ntfs.CreateDirectory(@"DIR");
byte[] buffer = new byte[4096];
for(int i = 0; i < 2500; ++i)
{
using(var stream = ntfs.OpenFile(@"DIR\file" + i + ".bin", FileMode.Create, FileAccess.ReadWrite))
{
stream.Write(buffer, 0,buffer.Length);
}
using(var stream = ntfs.OpenFile(@"DIR\" + i + ".bin", FileMode.Create, FileAccess.ReadWrite))
{
stream.Write(buffer, 0,buffer.Length);
}
}
for (int i = 0; i < 2500; ++i)
{
ntfs.DeleteFile(@"DIR\file" + i + ".bin");
}
// Create fragmented file (lots of small writes)
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.Create, FileAccess.ReadWrite))
{
for (int i = 0; i < 2500; ++i)
{
stream.Write(buffer, 0, buffer.Length);
}
}
// Try a large write
byte[] largeWriteBuffer = new byte[200 * 1024];
for (int i = 0; i < largeWriteBuffer.Length / 4096; ++i)
{
largeWriteBuffer[i * 4096] = (byte)i;
}
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
stream.Position = stream.Length - largeWriteBuffer.Length;
stream.Write(largeWriteBuffer, 0, largeWriteBuffer.Length);
}
// And a large read
byte[] largeReadBuffer = new byte[largeWriteBuffer.Length];
using (var stream = ntfs.OpenFile(@"DIR\fragmented.bin", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
stream.Position = stream.Length - largeReadBuffer.Length;
stream.Read(largeReadBuffer, 0, largeReadBuffer.Length);
}
Assert.AreEqual(largeWriteBuffer, largeReadBuffer);
}
