public void Test_if_rolling_back_to_first_memento_works()
{
var m = new TokenMachine();
var m1 = m.AddToken(111);
var m2 = m.AddToken(222);
var m3 = m.AddToken(333);
m.Revert(m1);
Assert.AreEqual(111, m.Tokens.Last().Value);
}
public void Changing_the_value_of_the_first_token_should_be_reverted_when_rolling_back()
{
var m = new TokenMachine();
var t = new Token(111);
var m1 = m.AddToken(t);
var m2 = m.AddToken(222);
var m3 = m.AddToken(333);
t.Value = 444;
Assert.AreEqual(444, t.Value);
m.Revert(m1);
Assert.AreEqual(111, m.Tokens.Last().Value);
}