public void DeserializeStack()
{
string json = @"[
""One"",
""II"",
""3""
]";
ImmutableStack <string> l = JsonConvert.DeserializeObject <ImmutableStack <string> >(json);
Assert.AreEqual(3, l.Count());
Assert.AreEqual("3", l.ElementAt(0));
Assert.AreEqual("II", l.ElementAt(1));
Assert.AreEqual("One", l.ElementAt(2));
}