Creates a basic virtual file system:
The file system will look like this:
/
dir1/
a.txt
dir2/
dir3/VirtualDirectory root = new VirtualDirectory(null, null); root.AllowWrites = false; VirtualDirectory dir1 = new VirtualDirectory (root, "dir1"); VirtualFile file1 = new VirtualFile( dir1, "a.txt" ); dir1.GetItems().Add( file1 ); VirtualDirectory dir2 = new VirtualDirectory (root, "dir2"); VirtualDirectory dir3 = new VirtualDirectory (root, "dir3"); VirtualFileSystem fileSystem = new VirtualFileSystem(root);