public void Format(DiskDriver disk)
{
//wipe the disk
FREE_SECTOR freeSector = new FREE_SECTOR(disk.BytesPerSector);
for (int i = 0; i < disk.SectorCount; i++)
{
disk.WriteSector(i, freeSector.RawBytes);
}
//format it
DRIVE_INFO driveInfo = new DRIVE_INFO(disk.BytesPerSector, Constants.ROOT_DIR_SECTOR);
disk.WriteSector(Constants.DRIVE_INFO_SECTOR, driveInfo.RawBytes);
DIR_NODE rootNode = new DIR_NODE(disk.BytesPerSector, Constants.ROOT_DATA_SECTOR, "/", 0);
disk.WriteSector(Constants.ROOT_DIR_SECTOR, rootNode.RawBytes);
DATA_SECTOR rootData = new DATA_SECTOR(disk.BytesPerSector, 0, new byte[1]);
disk.WriteSector(Constants.ROOT_DATA_SECTOR, rootData.RawBytes);
}
public void Format(DiskDriver disk)
{
// wipe all sectors of disk and create minimum required DRIVE_INFO, DIR_NODE and DATA_SECTOR
// Wipe all sectors (replace with "zeroes" are FREE_SECTOR)
int bps = disk.BytesPerSector;
FREE_SECTOR free = new FREE_SECTOR(bps);
for (int i = 0; i < disk.SectorCount; i++)
{
disk.WriteSector(i, free.RawBytes);
}
// Create DRIVE_INFO
DRIVE_INFO di = new DRIVE_INFO(bps, ROOT_DIR_SECTOR);
disk.WriteSector(DRIVE_INFO_SECTOR, di.RawBytes);
// Create and write the DIR_NODE for the root node...
DIR_NODE dn = new DIR_NODE(bps, ROOT_DATA_SECTOR, FSConstants.ROOT_DIR_NAME, 0);
disk.WriteSector(ROOT_DIR_SECTOR, dn.RawBytes);
// ... and an empty DATA_SECTOR
DATA_SECTOR ds = new DATA_SECTOR(bps, 0, null); // 0 = no next data sector, nul = empty set
disk.WriteSector(ROOT_DATA_SECTOR, ds.RawBytes);
}
public void Delete_ForDirectory_Recurse_DirectoryNotEmpty_CanDelete()
{
// arrange
using (var driver = new DiskDriver())
{
driver.CreateOrGetFile(@"c:\folder\subfolder\file.txt");
driver.CreateOrGetFile(@"c:\folder\file.txt");
driver.CreateOrGetFile(@"c:\other_folder\file.txt");
// act
var folder = driver.GetDirectory(@"c:\folder");
folder.Delete(true);
// assert
folder.Refresh();
Assert.IsFalse(folder.Exists);
Assert.IsFalse(driver.GetDirectory(@"c:\folder\subfolder").Exists);
Assert.IsFalse(driver.GetFile(@"c:\folder\subfolder\file.txt").Exists);
var c = driver.GetDirectory(@"c:\");
var filesAfterDelete = c.GetFiles("*", SearchOption.AllDirectories);
Assert.AreEqual(1, filesAfterDelete.Length);
Assert.AreEqual(@"c:\other_folder\file.txt", filesAfterDelete[0].FullName);
var directoriesAfterDelete = c.GetDirectories("*", SearchOption.AllDirectories);
Assert.AreEqual(1, directoriesAfterDelete.Length);
Assert.AreEqual(@"c:\other_folder", directoriesAfterDelete[0].FullName);
}
}
public void OpenFile_CreateMode_FileExists_CanOverwriteFile()
{
// arrange
using (var driver = new DiskDriver())
{
driver.CreateOrGetDirectory(@"c:\temp");
var file = driver.GetFile(@"c:\temp\file.txt");
using (var writer = new StreamWriter(file.Open(FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite)))
{
writer.Write("1");
}
// act
using (var writer = new StreamWriter(file.Open(FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite)))
{
writer.Write("2");
}
// assert
using (var reader = new StreamReader(file.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
{
Assert.AreEqual("2", reader.ReadToEnd());
}
}
}
public void MoveTo_TargetIsNewFile_CanMoveAndChangeName()
{
// arrange
using (var driver = new DiskDriver())
{
var src = driver.CreateOrGetFile(@"c:\src\file.txt");
driver.CreateOrGetDirectory(@"c:\targ");
using (var t = src.CreateText())
{
t.Write("CONTENT");
}
// act
src.MoveTo(@"c:\targ\moved.txt");
src.Refresh();
// assert
var target = driver.GetFile(@"c:\targ\moved.txt");
Assert.AreEqual(@"c:\targ\moved.txt", src.FullName);
Assert.IsFalse(driver.GetFile(@"c:\src\file.txt").Exists);
Assert.IsTrue(target.Exists);
using (var t = target.OpenText())
{
Assert.AreEqual("CONTENT", t.ReadToEnd());
}
}
}
private DRIVE_INFO sector; // caching entire sector for now
public VirtualDrive(DiskDriver disk, int driveInfoSector, DRIVE_INFO sector)
{
this.disk = disk;
this.driveInfoSector = driveInfoSector;
this.bytesPerDataSector = DATA_SECTOR.MaxDataLength(disk.BytesPerSector);
this.sector = sector;
}
public VirtualDrive(DiskDriver disk, int driveInfoSector, DRIVE_INFO sector)
{
mDisk = disk;
mDriveInfoSector = driveInfoSector;
mBytesPerDataSector = DATA_SECTOR.MaxDataLength(disk.BytesPerSector);
mSector = sector;
}
public void Format(DiskDriver disk)
{
// wipe all sectors of disk and create minimum required DRIVE_INFO, DIR_NODE and DATA_SECTOR
FREE_SECTOR free = new FREE_SECTOR(disk.BytesPerSector);
for (int i = 0; i < disk.SectorCount; i++)
{
disk.WriteSector(i, free.RawBytes);
}
// DRIVE_INFO
DRIVE_INFO drive = new DRIVE_INFO(disk.BytesPerSector, ROOT_DIR_SECTOR);
disk.WriteSector(DRIVE_INFO_SECTOR, drive.RawBytes);
// DIR_NODE for root node
DIR_NODE rootDir = new DIR_NODE(disk.BytesPerSector, ROOT_DATA_SECTOR, FSConstants.PATH_SEPARATOR.ToString(), 0);
disk.WriteSector(ROOT_DIR_SECTOR, rootDir.RawBytes);
// DATA_SECTOR for root node
DATA_SECTOR data = new DATA_SECTOR(disk.BytesPerSector, 0, new byte[] { 0 });
disk.WriteSector(ROOT_DATA_SECTOR, data.RawBytes);
}
public void Timestamps_DeleteDirectory_UpdateTimestamps()
{
// arrange
using (var driver = new DiskDriver())
{
var subdir = driver.CreateOrGetDirectory(@"c:\folder\subdir");
var folder = driver.GetDirectory(@"c:\folder");
var beforeDelete = DateTime.Now;
var old = beforeDelete.AddMinutes(-5);
folder.LastAccessTime = folder.LastWriteTime = folder.CreationTime = old;
Assert.IsTrue(folder.LastAccessTime == old);
Assert.IsTrue(folder.LastWriteTime == old);
Assert.IsTrue(folder.CreationTime == old);
// act
subdir.Delete();
folder.Refresh();
// Assert
Assert.IsTrue(folder.LastAccessTime >= beforeDelete);
Assert.IsTrue(folder.LastWriteTime >= beforeDelete);
Assert.IsTrue(folder.CreationTime == old);
}
}
public void Timestamp_DeleteDirectory_GrandparentDirectoryIsntUpdated()
{
// arrange
using (var driver = new DiskDriver())
{
var beforeCreate = DateTime.Now;
var f = driver.CreateOrGetDirectory(@"c:\parent\subfolder\folder");
var parent = driver.GetDirectory(@"c:\parent");
var expected = beforeCreate.AddMinutes(-5);
parent.LastAccessTime = parent.LastWriteTime = parent.CreationTime = expected;
Assert.IsTrue(parent.LastAccessTime == expected);
Assert.IsTrue(parent.LastWriteTime == expected);
Assert.IsTrue(parent.CreationTime == expected);
// act
var folder = driver.GetDirectory(@"c:\parent\subfolder\folder");
folder.Delete();
// Assert
Assert.IsTrue(parent.LastAccessTime == expected);
Assert.IsTrue(parent.LastWriteTime == expected);
Assert.IsTrue(parent.CreationTime == expected);
}
}
public void Timestamps_CreateOrGetFile_CanUpdatestamps()
{
// arrange
using (var driver = new DiskDriver())
{
var beforeCreate = DateTime.Now;
var f = driver.CreateOrGetDirectory(@"c:\folder");
var old = beforeCreate.AddMinutes(-5);
f.LastAccessTime = f.LastWriteTime = f.CreationTime = old;
Assert.IsTrue(f.LastAccessTime == old);
Assert.IsTrue(f.LastWriteTime == old);
Assert.IsTrue(f.CreationTime == old);
// act
var file = driver.CreateOrGetFile(@"c:\folder\file.txt");
f.Refresh();
// Assert
Assert.IsTrue(f.LastAccessTime >= beforeCreate);
Assert.IsTrue(f.LastWriteTime >= beforeCreate);
Assert.IsTrue(f.CreationTime == old);
}
}
public void Timestamps_DeleteFile_GrandparentDirectoryIsntUpdated()
{
// arrange
using (var driver = new DiskDriver())
{
driver.CreateOrGetFile(@"c:\parent\folder\file.txt");
var parent = driver.GetDirectory(@"c:\parent");
var beforeDelete = DateTime.Now;
var old = beforeDelete.AddMinutes(-5);
parent.LastAccessTime = parent.LastWriteTime = parent.CreationTime = old;
Assert.IsTrue(parent.LastAccessTime == old);
Assert.IsTrue(parent.LastWriteTime == old);
Assert.IsTrue(parent.CreationTime == old);
// act
var file = driver.GetFile(@"c:\parent\folder\file.txt");
file.Delete();
parent.Refresh();
// Assert
Assert.IsTrue(parent.LastAccessTime == old);
Assert.IsTrue(parent.LastWriteTime == old);
Assert.IsTrue(parent.CreationTime == old);
}
}
public void CopyTo_TargetIsExistingFile_Overwrite_CanCopy()
{
// arrange
using (var driver = new DiskDriver())
{
var src = driver.CreateOrGetFile(@"c:\src\file.txt");
var targ = driver.CreateOrGetFile(@"c:\targ\existing_file.txt");
using (var t = src.CreateText())
{
t.Write("CONTENT");
}
using (var t = targ.CreateText())
{
t.Write("OLD_CONTENT");
}
// act
var result = src.CopyTo(@"c:\targ\existing_file.txt", true);
// assert
using (var t = result.OpenText())
{
Assert.AreEqual("CONTENT", t.ReadToEnd());
}
}
}
public void CopyTo_CanCreateNewOnwership()
{
// arrange
using (var driver = new DiskDriver())
{
var srcDir = driver.CreateOrGetDirectory(@"c:\src");
var srcFile = driver.CreateOrGetFile(@"c:\src\file.txt");
driver.CreateOrGetFile(@"c:\src\file_2.txt");
var targetDir = driver.CreateOrGetDirectory(@"c:\targ");
// act
srcFile.CopyTo(@"c:\targ\file.txt", true);
// assert
var targetFiles = targetDir.GetFiles();
var srcFiles = srcDir.GetFiles();
Assert.AreEqual(2, srcFiles.Length);
Assert.AreEqual(1, srcFiles.Where(i => i.FullName == @"c:\src\file.txt").Count());
Assert.AreEqual(1, srcFiles.Where(i => i.FullName == @"c:\src\file_2.txt").Count());
Assert.AreEqual(1, targetFiles.Length);
Assert.AreEqual(@"c:\targ\file.txt", targetFiles[0].FullName);
}
}
public void GetDirectories_Recurse_Wilchars_CanFind()
{
// arrange
using (var driver = new DiskDriver())
{
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder_1");
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder_2");
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder1"); // to check if they are excluded from result
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder1"); // to check if they are excluded from result
driver.CreateOrGetDirectory(@"c:\root\folder_2\subfolder_3");
driver.CreateOrGetDirectory(@"c:\root\folder_2\subfolder_4");
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder3"); // to check if they are excluded from result
driver.CreateOrGetDirectory(@"c:\root\folder_1\subfolder4"); // to check if they are excluded from result
var root = driver.GetDirectory(@"c:\root");
// act
var result = root.GetDirectories(@"subfolder_*", SearchOption.AllDirectories);
// assert
Assert.AreEqual(4, result.Length);
Assert.AreEqual(1, result.Where(i => i.FullName == @"c:\root\folder_1\subfolder_1").Count());
Assert.AreEqual(1, result.Where(i => i.FullName == @"c:\root\folder_1\subfolder_2").Count());
Assert.AreEqual(1, result.Where(i => i.FullName == @"c:\root\folder_2\subfolder_3").Count());
Assert.AreEqual(1, result.Where(i => i.FullName == @"c:\root\folder_2\subfolder_4").Count());
}
}
public void Format(DiskDriver disk)
{
// wipe all sectors of disk and create minimum required DRIVE_INFO, DIR_NODE and DATA_SECTOR
//how many sectors
int numSectors = disk.SectorCount;
FREE_SECTOR freeSector = new FREE_SECTOR(disk.BytesPerSector);
for (int lba = 0; lba < numSectors; lba++)
{
disk.WriteSector(lba, freeSector.RawBytes);
}
DRIVE_INFO diSector1 = new DRIVE_INFO(disk.BytesPerSector, ROOT_DIR_SECTOR);
disk.WriteSector(0, diSector1.RawBytes);
DIR_NODE rootDirSector = new DIR_NODE(disk.BytesPerSector, ROOT_DATA_SECTOR, FSConstants.ROOT_DIR_NAME, 0);
disk.WriteSector(ROOT_DIR_SECTOR, rootDirSector.RawBytes);
DATA_SECTOR rootDataSector = new DATA_SECTOR(disk.BytesPerSector, 0, new byte[DATA_SECTOR.MaxDataLength(disk.BytesPerSector)]);
disk.WriteSector(ROOT_DATA_SECTOR, rootDataSector.RawBytes);
}
public void Move_CanUpdateStubs()
{
// arrange
using (var driver = new DiskDriver())
{
driver.CreateOrGetFile(@"c:\src\folder_1\subfolder_1\file_1.txt");
driver.CreateOrGetFile(@"c:\src\folder_1\subfolder_1\file_2.txt");
driver.CreateOrGetFile(@"c:\src\folder_1\subfolder_2\file_1.txt");
driver.CreateOrGetFile(@"c:\src\folder_1\subfolder_2\file_2.txt");
driver.CreateOrGetFile(@"c:\src\folder_2\subfolder_1\file_1.txt");
driver.CreateOrGetFile(@"c:\src\folder_2\subfolder_1\file_2.txt");
driver.CreateOrGetFile(@"c:\src\folder_2\subfolder_2\file_1.txt");
driver.CreateOrGetFile(@"c:\src\folder_2\subfolder_2\file_2.txt");
driver.CreateOrGetDirectory(@"c:\targ");
var folder_1 = driver.GetDirectory(@"c:\src\folder_1");
// act
folder_1.MoveTo(@"c:\targ\folder_1");
// assert
var fileStub = driver.GetFile(@"c:\targ\folder_1\subfolder_1\file_1.txt");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_1\file_1.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\targ\folder_1\subfolder_1\file_2.txt");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_1\file_2.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\targ\folder_1\subfolder_2\file_1.txt");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_2\file_1.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\targ\folder_1\subfolder_2\file_2.txt");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_2\file_2.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\src\folder_2\subfolder_1\file_1.txt");
Assert.AreEqual(@"c:\src\folder_2\subfolder_1\file_1.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\src\folder_2\subfolder_1\file_2.txt");
Assert.AreEqual(@"c:\src\folder_2\subfolder_1\file_2.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\src\folder_2\subfolder_2\file_1.txt");
Assert.AreEqual(@"c:\src\folder_2\subfolder_2\file_1.txt", fileStub.FullName);
fileStub = driver.GetFile(@"c:\src\folder_2\subfolder_2\file_2.txt");
Assert.AreEqual(@"c:\src\folder_2\subfolder_2\file_2.txt", fileStub.FullName);
var dirStub = driver.GetDirectory(@"c:\targ");
Assert.AreEqual(@"c:\targ", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\targ\folder_1");
Assert.AreEqual(@"c:\targ\folder_1", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\targ\folder_1\subfolder_1");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_1", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\targ\folder_1\subfolder_2");
Assert.AreEqual(@"c:\targ\folder_1\subfolder_2", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\src");
Assert.AreEqual(@"c:\src", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\src\folder_2");
Assert.AreEqual(@"c:\src\folder_2", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\src\folder_2\subfolder_1");
Assert.AreEqual(@"c:\src\folder_2\subfolder_1", dirStub.FullName);
dirStub = driver.GetDirectory(@"c:\src\folder_2\subfolder_2");
Assert.AreEqual(@"c:\src\folder_2\subfolder_2", dirStub.FullName);
}
}
static bool TestSector(DiskDriver disk, int lba, byte[] testdata)
{
disk.WriteSector(lba, testdata);
byte[] s = disk.ReadSector(lba);
bool success = Compare(testdata, s);
Console.WriteLine("Compare " + success.ToString());
return(success);
}
public void Move_PartOfTargetDoesntExists_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var dir = driver.CreateOrGetDirectory(@"c:\dir");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => dir.MoveTo(@"c:\temp\dir"));
}
}
public void GetLength_DirectoryDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var file = driver.GetFile(@"c:\temp\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => file.Length);
}
}
public void Parent_DirectoryIsRoot_ReturnsNull()
{
// arrange
using (var driver = new DiskDriver())
{
var c = driver.CreateOrGetDirectory(@"c:\");
// assert
Assert.IsNull(c.Parent);
}
}
public void SetCreationTime_DirectoryDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var file = driver.GetFile(@"c:\temp\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => file.CreationTime = DateTime.Now);
}
}
public void GetIsReadOnly_FileDoesntExist_ReturnsTrue()
{
// arrange
using (var driver = new DiskDriver())
{
var file = driver.GetFile(@"c:\temp\file.txt");
// act/assert
Assert.IsTrue(file.IsReadOnly);
}
}
public void SetIsReadOnly_DirDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var file = driver.GetFile(@"c:\temp\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => file.IsReadOnly = true);
}
}
public void SetAttributes_DirectoryDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var file = driver.GetFile(@"c:\temp\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => file.Attributes = FileAttributes.Hidden);
}
}
public void Root_ReturnsRoot()
{
// arrange
using (var driver = new DiskDriver())
{
var f = driver.CreateOrGetDirectory(@"c:\folder\subfolder");
// assert
Assert.AreEqual(@"c:\", f.Root.FullName);
}
}
public void CopyTo_SourceDirDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var src = driver.GetFile(@"c:\src\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => src.CopyTo(@"c:\targ\file.txt", true));
}
}
public void CreateSubdirectory_PathIsAbsolute_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var folder = driver.CreateOrGetDirectory(@"c:\folder");
// act/assert
Assert.ThrowsException <ArgumentException>(() => folder.CreateSubdirectory(@"c:\folder\subfolder"));
}
}
public void MoveTo_TargetDirectoryDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var src = driver.CreateOrGetFile(@"c:\src\file.txt");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => src.MoveTo(@"c:\targ\file.txt"));
}
}
public void GetFiles_DirectoryDoesntExist_Throws()
{
// arrange
using (var driver = new DiskDriver())
{
var root = driver.GetDirectory(@"c:\root");
// act/assert
Assert.ThrowsException <DirectoryNotFoundException>(() => root.GetFiles(@"file.txt", SearchOption.AllDirectories));
}
}