Split up methods in controllers, added tests for GameService, refactored GameGroup name to Game and directory Game to GameStuff

BackendTests/Services/GameServiceTests.cs

@@ -0,0 +1,100 @@
+using BackendTests.TestUtils;
+using Microsoft.Extensions.Logging;
+using NSubstitute;
+using pacMan.Exceptions;
+using pacMan.GameStuff;
+using pacMan.Services;
+
+namespace BackendTests.Services;
+
+public class GameServiceTests
+{
+    private readonly DirectionalPosition _spawn3By3Up = new()
+        { At = new Position { X = 3, Y = 3 }, Direction = Direction.Up };
+
+    private GameService _service = null!;
+    private Queue<DirectionalPosition> _spawns = null!;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _service = new GameService(Substitute.For<ILogger<GameService>>());
+        _spawns = new Queue<DirectionalPosition>(new[]
+        {
+            _spawn3By3Up,
+            new DirectionalPosition { At = new Position { X = 7, Y = 7 }, Direction = Direction.Down },
+            new DirectionalPosition { At = new Position { X = 7, Y = 7 }, Direction = Direction.Down },
+            new DirectionalPosition { At = new Position { X = 7, Y = 7 }, Direction = Direction.Down }
+        });
+    }
+
+    #region JoinbyId(Guid id)
+
+    [Test]
+    public void JoinById_WhenIdNotExists()
+    {
+        var player = Players.Create("white");
+        _service.AddPlayer(player, _spawns);
+
+        Assert.Throws<GameNotFoundException>(() => _service.JoinById(Guid.NewGuid(), player));
+    }
+    
+    [Test]
+    public void JoinById_WhenIdExists()
+    {
+        var player = Players.Create("white");
+        var group = _service.AddPlayer(player, _spawns);
+
+        var player2 = Players.Create("black");
+        var result = _service.JoinById(group.Id, player2);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(result, Is.EqualTo(group));
+            Assert.That(group.Players, Has.Count.EqualTo(2));
+            Assert.That(_service.Games, Has.Count.EqualTo(1));
+        });
+    }
+
+    #endregion
+
+    #region AddPlayer(IPlayer)
+
+    [Test]
+    public void AddPlayer_ToEmptyGroup()
+    {
+        var player = Players.Create("white");
+        var group = _service.AddPlayer(player, _spawns);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(group.Players, Has.Count.EqualTo(1));
+            Assert.That(group.NextPlayer, Is.EqualTo(player));
+            Assert.That(_service.Games, Has.Count.EqualTo(1));
+        });
+    }
+
+    [Test]
+    public void AddPlayer_ToFullGroup()
+    {
+        for (var i = 0; i < 4; i++)
+        {
+            var player = Players.Create(i.ToString());
+            _service.AddPlayer(player, _spawns);
+        }
+
+        var player5 = Players.Create("white");
+
+        var group = _service.AddPlayer(player5, new Queue<DirectionalPosition>(new[] { _spawn3By3Up }));
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(group.Players, Has.Count.EqualTo(1));
+            Assert.That(group.NextPlayer, Is.EqualTo(player5));
+            Assert.That(_service.Games, Has.Count.EqualTo(2));
+            Assert.That(_service.Games.First(), Has.Count.EqualTo(Rules.MaxPlayers));
+        });
+    }
+
+    #endregion
+}