gistfile1.txt

new TestScheduler().With(sc => {
    var bus = MessageBus.Current;
    var quad = Substitute.For<IQuad>();
    var vm = new MapViewModel(new Mission(quad, bus), quad, bus);

    bus.SendMessage(new StartAddingWaypointsMessage());

    Assert.IsTrue(vm.IsAddingWaypoints);

    bus.SendMessage(new StopAddingWaypointsMessage());

    Assert.IsFalse(vm.IsAddingWaypoints);
});