public void UnitTests()
{
var fixedRandom = new FixedRandom();
var test = new WeightedRandom(fixedRandom);
var w1 = new Weight(1.0f);
var w2 = new Weight(0.5f);
var w3 = new Weight(0.25f);
var totalWeight = w1.Value + w2.Value + w3.Value;
test.Add(w1);
test.Add(w2);
test.Add(w3);
Assert.AreEqual(w1, test.ChooseFactor(.5f / totalWeight));
Assert.AreEqual(w1, test.ChooseFactor(.9f / totalWeight));
Assert.AreEqual(w2, test.ChooseFactor(1.1f / totalWeight));
Assert.AreEqual(w3, test.ChooseFactor(1.6f / totalWeight));
}