public void TestAt()
{
decisions.Decide(1, 1, defaultRule);
decisions.Decide(-2, 2, defaultRule);
decisions.Decide(3, 3, defaultRule);
Assert.AreEqual(1, decisions.At(0).Literal);
Assert.AreEqual(-2, decisions.At(1).Literal);
Assert.AreEqual(3, decisions[2].Literal);
}