public void Convert()
{
// Arrange: create a world model.
var world = new World();
var spitfire = new Fighter { Name = "Spitfire", PositionX = 100, PositionY = 200, Rotation = 45 };
var stuka = new Fighter { Name = "Stuka", PositionX = 300, PositionY = 400, Rotation = 90, Target = spitfire };
world.Fighters.Add(spitfire);
world.Fighters.Add(stuka);
// Act: convert to view model.
var mainContext = new MainContext(null);
var worldContext = new WorldContext(mainContext, world);
// Assert: verify view model
Assert.IsNotNull(worldContext.Fighters);
Assert.AreEqual(2, worldContext.Fighters.Count);
FighterContext spitfireContext = worldContext.Fighters.FirstOrDefault(f => f.Name == "Spitfire");
Assert.IsNotNull(spitfireContext);
Assert.AreEqual("Spitfire", spitfireContext.Name);
Assert.AreEqual(100.0, spitfireContext.Position.X);
Assert.AreEqual(200.0, spitfireContext.Position.Y);
Assert.AreEqual(45.0, spitfireContext.Rotation);
Assert.AreEqual(null, spitfireContext.Target);
FighterContext stukaContext = worldContext.Fighters.FirstOrDefault(f => f.Name == "Stuka");
Assert.IsNotNull(stukaContext);
Assert.AreEqual("Stuka", stukaContext.Name);
Assert.AreEqual(300.0, stukaContext.Position.X);
Assert.AreEqual(400.0, stukaContext.Position.Y);
Assert.AreEqual(90.0, stukaContext.Rotation);
Assert.AreEqual(spitfireContext, stukaContext.Target);
// Act: convert back to model.
world = worldContext.CreateModel();
// Assert: correctness of created model.
Assert.IsNotNull(world.Fighters);
Assert.AreEqual(2, world.Fighters.Count);
spitfire = world.Fighters.FirstOrDefault(f => f.Name == "Spitfire");
Assert.IsNotNull(spitfire);
Assert.AreEqual("Spitfire", spitfire.Name);
Assert.AreEqual(100, spitfire.PositionX);
Assert.AreEqual(200, spitfire.PositionY);
Assert.AreEqual(45, spitfire.Rotation);
Assert.AreEqual(null, spitfire.Target);
stuka = world.Fighters.FirstOrDefault(f => f.Name == "Stuka");
Assert.IsNotNull(stuka);
Assert.AreEqual("Stuka", stuka.Name);
Assert.AreEqual(300, stuka.PositionX);
Assert.AreEqual(400, stuka.PositionY);
Assert.AreEqual(90, stuka.Rotation);
Assert.AreEqual(spitfire, stuka.Target);
}
protected void New(WorldContext world)
{
ClearHistory();
SelectedFighter = null;
World = world;
}
public void Open(FilePathProvider filePathProvider)
{
string newFilePath = filePathProvider(FilePath);
if (newFilePath != null)
{
using (var stream = File.OpenRead(newFilePath))
{
World worldModel = DogFight.World.LoadFrom(stream);
var worldContext = new WorldContext(this, worldModel);
New(worldContext);
FilePath = newFilePath;
}
}
}
public FighterContext(WorldContext world)
{
World = world;
ClearTargetCommand = CommandFactory.Create(ClearTarget, CanClearTarget, this, TargetProperty);
}
