static void TestSecuritySystem()
{
try
{
VolatileDisk disk = new VolatileDisk(0);
disk.TurnOn();
FileSystem fs = new SimpleFS();
fs.Format(disk);
fs.Mount(disk, "/");
SecuritySystem security = new SimpleSecurity(fs, "passwd");
security.AddUser("steven");
if (security.NeedsPassword("steven"))
{
security.SetPassword("steven", "foobar42");
}
int userID = security.Authenticate("steven", "foobar42");
Console.WriteLine("UserID " + userID.ToString());
Console.WriteLine("Username " + security.UserName(userID));
Console.WriteLine("Home Directory " + security.UserHomeDirectory(userID));
Console.WriteLine("Shell " + security.UserPreferredShell(userID));
// Try failure scenarios
// Add user "steven" again
TestSecurityException(() => { security.AddUser("steven"); });
// Password for no one
TestSecurityException(() => { security.NeedsPassword("nope"); });
// Set password for invalid user
TestSecurityException(() => { security.SetPassword("nope", "12345678"); });
// Set invalid password
TestSecurityException(() => { security.SetPassword("steven", "hat"); });
// Authenticate invalid user
TestSecurityException(() => { security.Authenticate("nope", "12345678"); });
// Authenticate invalid password
TestSecurityException(() => { security.Authenticate("steven", "hat"); });
// invalid user ID
TestSecurityException(() => { security.UserName(42); });
// invalid user ID
TestSecurityException(() => { security.UserHomeDirectory(42); });
// invalid user ID
TestSecurityException(() => { security.UserPreferredShell(42); });
// second security system
SecuritySystem security2 = new SimpleSecurity(fs, "passwd");
security2.Authenticate("steven", "foobar42");
fs.Unmount("/");
disk.TurnOff();
}
catch (Exception ex)
{
Console.WriteLine("Exception: " + ex.Message);
}
}
static void TestLogicalFileSystem()
{
try
{
DiskDriver disk = new VolatileDisk(1);
//DiskDriver disk = new PersistentDisk(1, "disk1");
disk.TurnOn();
FileSystem fs = new SimpleFS();
fs.Format(disk);
fs.Mount(disk, "/");
Directory root = fs.GetRootDirectory();
Directory dir1 = root.CreateDirectory("dir1");
Directory dir2 = root.CreateDirectory("dir2");
Random r = new Random();
byte[] bytes1 = CreateTestBytes(r, 1000);
File file2 = dir2.CreateFile("file2");
FileStream stream1 = file2.Open();
stream1.Write(0, bytes1);
stream1.Close();
File file2_2 = (File)fs.Find("/dir2/file2");
FileStream stream2 = file2_2.Open();
byte[] bytes2 = stream2.Read(0, 1000);
stream2.Close();
if (!Compare(bytes1, bytes2))
{
throw new Exception("bytes read were not the same as written");
}
ValidateBadPath(fs, "");
ValidateBadPath(fs, "//");
ValidateBadPath(fs, "/dir2/nope");
ValidateBadPath(fs, "dir2");
ValidateBadPath(fs, "nope");
ValidateBadPath(fs, "/dir2/file2/nope");
ValidatePath(fs, "/");
ValidatePath(fs, "/dir2");
ValidatePath(fs, "/dir1/");
Console.WriteLine("Printing all directories...");
RecursivelyPrintDirectories(root);
Console.WriteLine();
Console.WriteLine("Moving file2 to dir1...");
file2.Move(dir1);
Console.WriteLine("Printing all directories...");
RecursivelyPrintDirectories(root);
Console.WriteLine();
Console.WriteLine("Renaming dir2 to renamed...");
dir2.Rename("renamed");
Console.WriteLine("Printing all directories...");
RecursivelyPrintDirectories(root);
Console.WriteLine();
Console.WriteLine("Deleting renamed...");
dir2.Delete();
Console.WriteLine("Printing all directories...");
RecursivelyPrintDirectories(root);
Console.WriteLine();
Console.WriteLine("Deleting dir1...");
dir1.Delete();
Console.WriteLine("Printing all directories...");
RecursivelyPrintDirectories(root);
Console.WriteLine();
fs.Unmount("/");
disk.TurnOff();
Console.WriteLine("Logical file system success!");
}
catch (Exception ex)
{
Console.WriteLine("LFS test failed: " + ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
