public void Test_GetSystem()
{
var world = new World();
Assert.Throws <NamedObjectNotFoundException>(() => world.GetSystem("fff"));
Assert.Throws <GuidNotFoundException>(
() => world.GetSystem(new Guid("1f0c7480-d434-48ec-9872-aed16c47f2eb")));
world.InjurySystems.Add(new InjurySystem()
{
Name = "fff",
Identifier = new Guid("1f0c7480-d434-48ec-9872-aed16c47f2eb")
});
Assert.AreEqual(world.InjurySystems.Single(), world.GetSystem("fff"));
Assert.AreEqual(world.InjurySystems.Single(), world.GetSystem(new Guid("1f0c7480-d434-48ec-9872-aed16c47f2eb")));
}