public async void Wraparound()
{
var Emitter = new Enumerate("Reindeer");
// There are only 8 reindeer, so 11 should wrap-around to the third
var msg1 = new Step
{
Number = 11
};
var vixen = await Emitter.HandleMessage(msg1);
Assert.IsType <StringMessage>(vixen);
Assert.Equal("Vixen", ((StringMessage)vixen).Value);
}