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 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); }