public void ContainsRaceTest() { var d = new Demographics(); Assert.AreEqual(0, d.Populations.Count); var r = MakeTestRace("test race"); var r2 = MakeTestRace("test race 2"); Assert.IsFalse(d.ContainsRace(r)); Assert.IsFalse(d.ContainsRace(r2)); d.IncreasePopulationFor(r); Assert.IsTrue(d.ContainsRace(r)); Assert.IsFalse(d.ContainsRace(r2)); d.IncreasePopulationFor(r2); Assert.IsTrue(d.ContainsRace(r)); Assert.IsTrue(d.ContainsRace(r2)); }