public void SetUp()
{
FileSystemProvider.Instance = FileSystemForTesting.Instance;
var created = ArchiveRoot.TryCreate(@"C:\archiv", out _root);
Assert.IsTrue(created);
}
public ArchiveRootTreeViewItem(ArchiveRoot root, IMessageBox messageBox)
: base("<none>")
{
_root = root;
MessageBox = messageBox;
Children = root.Children
.Select(item => item.ToTreeViewItem(this))
.ToImmutableList();
}