public void SingleTokenTest()
{
var tm = new TokenMachine();
var m = tm.AddToken(123);
tm.AddToken(456);
tm.Revert(m);
Assert.That(tm.Tokens.Count, Is.EqualTo(1));
Assert.That(tm.Tokens[0].Value, Is.EqualTo(123));
}
public void TwoTokenTest()
{
var tm = new TokenMachine();
tm.AddToken(1);
var m = tm.AddToken(2);
tm.AddToken(3);
tm.Revert(m);
Assert.That(tm.Tokens.Count, Is.EqualTo(2));
Assert.That(tm.Tokens[0].Value, Is.EqualTo(1),
$"First token should have value 1, you got {tm.Tokens[0].Value}");
Assert.That(tm.Tokens[1].Value, Is.EqualTo(2));
}
public void FiddledTokenTest()
{
var tm = new TokenMachine();
Console.WriteLine("Made a token with value 111 and kept a reference");
var token = new Token(111);
Console.WriteLine("Added this token to the list");
tm.AddToken(token);
var m = tm.AddToken(222);
Console.WriteLine("Changed this token's value to 333 :)");
token.Value = 333;
tm.Revert(m);
Assert.That(tm.Tokens.Count, Is.EqualTo(2),
$"At this point, token machine should have exactly two tokens, you got {tm.Tokens.Count}");
Assert.That(tm.Tokens[0].Value, Is.EqualTo(111),
$"You got the token value wrong here. Hint: did you init the memento by value?");
}