fix antag selection being evil (#28197)

* fix antag selection being evil

* fix test

* untroll the other tests

* remove role timer troll

* Allow tests to modify antag preferences

* Fix antag selection

* Misc test fixes

* Add AntagPreferenceTest

* Fix lazy mistakes

* Test cleanup

* Try stop players in lobbies from being assigned mid-round antags

* ranting

* I am going insane

---------

Co-authored-by: deltanedas <@deltanedas:kde.org>
Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>

Content.IntegrationTests/Pair/TestPair.Helpers.cs

@@ -2,6 +2,9 @@
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using Content.Server.Preferences.Managers;
+using Content.Shared.Preferences;
+using Content.Shared.Roles;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Map;
 using Robust.Shared.Prototypes;
@@ -128,4 +131,29 @@ public sealed partial class TestPair
 
         return list;
     }
+
+    /// <summary>
+    /// Helper method for enabling or disabling a antag role
+    /// </summary>
+    public async Task SetAntagPref(ProtoId<AntagPrototype> id, bool value)
+    {
+        var prefMan = Server.ResolveDependency<IServerPreferencesManager>();
+
+        var prefs = prefMan.GetPreferences(Client.User!.Value);
+        // what even is the point of ICharacterProfile if we always cast it to HumanoidCharacterProfile to make it usable?
+        var profile = (HumanoidCharacterProfile) prefs.SelectedCharacter;
+
+        Assert.That(profile.AntagPreferences.Contains(id), Is.EqualTo(!value));
+        var newProfile = profile.WithAntagPreference(id, value);
+
+        await Server.WaitPost(() =>
+        {
+            prefMan.SetProfile(Client.User.Value, prefs.SelectedCharacterIndex, newProfile).Wait();
+        });
+
+        // And why the fuck does it always create a new preference and profile object instead of just reusing them?
+        var newPrefs = prefMan.GetPreferences(Client.User.Value);
+        var newProf = (HumanoidCharacterProfile) newPrefs.SelectedCharacter;
+        Assert.That(newProf.AntagPreferences.Contains(id), Is.EqualTo(value));
+    }
 }

Content.IntegrationTests/PoolManager.cs

@@ -65,11 +65,11 @@ public static partial class PoolManager
 
         options.BeforeStart += () =>
         {
+            // Server-only systems (i.e., systems that subscribe to events with server-only components)
             var entSysMan = IoCManager.Resolve<IEntitySystemManager>();
-            entSysMan.LoadExtraSystemType<ResettingEntitySystemTests.TestRoundRestartCleanupEvent>();
-            entSysMan.LoadExtraSystemType<InteractionSystemTests.TestInteractionSystem>();
             entSysMan.LoadExtraSystemType<DeviceNetworkTestSystem>();
             entSysMan.LoadExtraSystemType<TestDestructibleListenerSystem>();
+
             IoCManager.Resolve<ILogManager>().GetSawmill("loc").Level = LogLevel.Error;
             IoCManager.Resolve<IConfigurationManager>()
                 .OnValueChanged(RTCVars.FailureLogLevel, value => logHandler.FailureLevel = value, true);

Content.IntegrationTests/Tests/GameRules/AntagPreferenceTest.cs

@@ -0,0 +1,76 @@
+#nullable enable
+using System.Collections.Generic;
+using System.Linq;
+using Content.Server.Antag;
+using Content.Server.Antag.Components;
+using Content.Server.GameTicking;
+using Content.Shared.GameTicking;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Player;
+using Robust.Shared.Random;
+
+namespace Content.IntegrationTests.Tests.GameRules;
+
+// Once upon a time, players in the lobby weren't ever considered eligible for antag roles.
+// Lets not let that happen again.
+[TestFixture]
+public sealed class AntagPreferenceTest
+{
+    [Test]
+    public async Task TestLobbyPlayersValid()
+    {
+        await using var pair = await PoolManager.GetServerClient(new PoolSettings
+        {
+            DummyTicker = false,
+            Connected = true,
+            InLobby = true
+        });
+
+        var server = pair.Server;
+        var client = pair.Client;
+        var ticker = server.System<GameTicker>();
+        var sys = server.System<AntagSelectionSystem>();
+
+        // Initially in the lobby
+        Assert.That(ticker.RunLevel, Is.EqualTo(GameRunLevel.PreRoundLobby));
+        Assert.That(client.AttachedEntity, Is.Null);
+        Assert.That(ticker.PlayerGameStatuses[client.User!.Value], Is.EqualTo(PlayerGameStatus.NotReadyToPlay));
+
+        EntityUid uid = default;
+        await server.WaitPost(() => uid = server.EntMan.Spawn("Traitor"));
+        var rule = new Entity<AntagSelectionComponent>(uid, server.EntMan.GetComponent<AntagSelectionComponent>(uid));
+        var def = rule.Comp.Definitions.Single();
+
+        // IsSessionValid & IsEntityValid are preference agnostic and should always be true for players in the lobby.
+        // Though maybe that will change in the future, but then GetPlayerPool() needs to be updated to reflect that.
+        Assert.That(sys.IsSessionValid(rule, pair.Player, def), Is.True);
+        Assert.That(sys.IsEntityValid(client.AttachedEntity, def), Is.True);
+
+        // By default, traitor/antag preferences are disabled, so the pool should be empty.
+        var sessions = new List<ICommonSession>{pair.Player!};
+        var pool = sys.GetPlayerPool(rule, sessions, def);
+        Assert.That(pool.Count, Is.EqualTo(0));
+
+        // Opt into the traitor role.
+        await pair.SetAntagPref("Traitor", true);
+
+        Assert.That(sys.IsSessionValid(rule, pair.Player, def), Is.True);
+        Assert.That(sys.IsEntityValid(client.AttachedEntity, def), Is.True);
+        pool = sys.GetPlayerPool(rule, sessions, def);
+        Assert.That(pool.Count, Is.EqualTo(1));
+        pool.TryPickAndTake(pair.Server.ResolveDependency<IRobustRandom>(), out var picked);
+        Assert.That(picked, Is.EqualTo(pair.Player));
+        Assert.That(sessions.Count, Is.EqualTo(1));
+
+        // opt back out
+        await pair.SetAntagPref("Traitor", false);
+
+        Assert.That(sys.IsSessionValid(rule, pair.Player, def), Is.True);
+        Assert.That(sys.IsEntityValid(client.AttachedEntity, def), Is.True);
+        pool = sys.GetPlayerPool(rule, sessions, def);
+        Assert.That(pool.Count, Is.EqualTo(0));
+
+        await server.WaitPost(() => server.EntMan.DeleteEntity(uid));
+        await pair.CleanReturnAsync();
+    }
+}

Content.IntegrationTests/Tests/GameRules/NukeOpsTest.cs

@@ -58,6 +58,9 @@ public sealed class NukeOpsTest
         Assert.That(client.AttachedEntity, Is.Null);
         Assert.That(ticker.PlayerGameStatuses[client.User!.Value], Is.EqualTo(PlayerGameStatus.NotReadyToPlay));
 
+        // Opt into the nukies role.
+        await pair.SetAntagPref("NukeopsCommander", true);
+
         // There are no grids or maps
         Assert.That(entMan.Count<MapComponent>(), Is.Zero);
         Assert.That(entMan.Count<MapGridComponent>(), Is.Zero);
@@ -198,6 +201,7 @@ public sealed class NukeOpsTest
 
         ticker.SetGamePreset((GamePresetPrototype?)null);
         server.CfgMan.SetCVar(CCVars.GridFill, false);
+        await pair.SetAntagPref("NukeopsCommander", false);
         await pair.CleanReturnAsync();
     }
 }

Content.IntegrationTests/Tests/Interaction/Click/InteractionSystemTests.cs

@@ -407,7 +407,6 @@ namespace Content.IntegrationTests.Tests.Interaction.Click
             await pair.CleanReturnAsync();
         }
 
-        [Reflect(false)]
         public sealed class TestInteractionSystem : EntitySystem
         {
             public EntityEventHandler<InteractUsingEvent>? InteractUsingEvent;

Content.IntegrationTests/Tests/ResettingEntitySystemTests.cs

@@ -9,7 +9,6 @@ namespace Content.IntegrationTests.Tests
     [TestOf(typeof(RoundRestartCleanupEvent))]
     public sealed class ResettingEntitySystemTests
     {
-        [Reflect(false)]
         public sealed class TestRoundRestartCleanupEvent : EntitySystem
         {
             public bool HasBeenReset { get; set; }
@@ -49,8 +48,6 @@ namespace Content.IntegrationTests.Tests
 
                 system.HasBeenReset = false;
 
-                Assert.That(system.HasBeenReset, Is.False);
-
                 gameTicker.RestartRound();
 
                 Assert.That(system.HasBeenReset);