public async void Navigate_Should_Call_IMazeSpawner_Spawn()
{
var start = new Coordinates(1, 2);
var destination = new Coordinates(3, 4);
var floorPlan = new char[0][];
var map = new Map(floorPlan);
_queen.ScanMap(start, destination, map);
var crawler = Substitute.For <IMazeCrawler>();
crawler.Navigate().Returns(new NavigationDetails());
MazeCrawlerContext context = null;
_spawner.Spawn(Arg.Do <MazeCrawlerContext>(c => context = c)).Returns(crawler);
await _queen.Navigate();
_spawner.Received(1).Spawn(Arg.Any <MazeCrawlerContext>());
context.Start.Should().Be(start);
context.Destination.Should().Be(destination);
context.NavigationMode.Should().Be(CrawlerNavigationMode.Scout);
context.Coordinator.Should().Be(_queen);
}
