public void DelRestoreFolderTest()
{
const string dir = @"C:\Temp\Fonts\";
RecycleBin.DeleteToRecycleBin(dir);
Assert.That(RecycleBin.Count, Is.GreaterThan(0L));
TestContext.WriteLine($"cnt={RecycleBin.Count}; sz={RecycleBin.Size}");
RecycleBin.RestoreAll();
Assert.That(RecycleBin.Count, Is.EqualTo(0L));
Assert.IsTrue(Directory.Exists(dir));
}