Many more tests and fixes

Plugins/PkmnLib.Plugin.Gen7.Tests/Scripts/Moves/MoongeistBeamTests.cs

@@ -0,0 +1,74 @@
+using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+namespace PkmnLib.Plugin.Gen7.Tests.Scripts.Moves;
+
+/// <summary>
+/// Tests for the <see cref="MoongeistBeam"/> move script.
+/// Gen VII Bulbapedia behavior: "Moongeist Beam inflicts damage, ignoring all ignorable Abilities during the
+/// execution of that move. (Ignorable Abilities are most Abilities that could potentially negatively affect
+/// the success, damage, or effects of a move if possessed by the target of a move or its allies—such as
+/// Multiscale and Friend Guard.)"
+/// </summary>
+public class MoongeistBeamTests
+{
+    /// <summary>
+    /// Bulbapedia: "Moongeist Beam inflicts damage, ignoring all ignorable Abilities during the execution of
+    /// that move." — when no categories are suppressed yet, the script creates the suppression list and adds
+    /// the <see cref="ScriptCategory.Ability"/> category to it.
+    /// </summary>
+    [Test]
+    public async Task OnBeforeAnyHookInvoked_NullList_CreatesListContainingAbilityCategory()
+    {
+        // Arrange
+        var script = new MoongeistBeam();
+        List<ScriptCategory>? suppressedCategories = null;
+
+        // Act
+        script.OnBeforeAnyHookInvoked(ref suppressedCategories);
+
+        // Assert
+        await Assert.That(suppressedCategories).IsNotNull();
+        await Assert.That(suppressedCategories!.Contains(ScriptCategory.Ability)).IsTrue();
+    }
+
+    /// <summary>
+    /// Bulbapedia: "ignoring all ignorable Abilities during the execution of that move" — when other script
+    /// categories are already suppressed, the Ability category is added without removing the existing
+    /// suppressions.
+    /// </summary>
+    [Test]
+    public async Task OnBeforeAnyHookInvoked_ExistingList_AddsAbilityCategoryAndKeepsExistingEntries()
+    {
+        // Arrange
+        var script = new MoongeistBeam();
+        List<ScriptCategory>? suppressedCategories = [ScriptCategory.ItemBattleTrigger];
+
+        // Act
+        script.OnBeforeAnyHookInvoked(ref suppressedCategories);
+
+        // Assert
+        await Assert.That(suppressedCategories!.Contains(ScriptCategory.Ability)).IsTrue();
+        await Assert.That(suppressedCategories!.Contains(ScriptCategory.ItemBattleTrigger)).IsTrue();
+    }
+
+    /// <summary>
+    /// Bulbapedia: only "ignorable Abilities" are ignored — Moongeist Beam does not suppress any other kind
+    /// of script (held items, status conditions, side effects, ...), so the script adds exactly the Ability
+    /// category and nothing else.
+    /// </summary>
+    [Test]
+    public async Task OnBeforeAnyHookInvoked_NullList_OnlySuppressesAbilityCategory()
+    {
+        // Arrange
+        var script = new MoongeistBeam();
+        List<ScriptCategory>? suppressedCategories = null;
+
+        // Act
+        script.OnBeforeAnyHookInvoked(ref suppressedCategories);
+
+        // Assert
+        await Assert.That(suppressedCategories!.Count).IsEqualTo(1);
+        await Assert.That(suppressedCategories![0]).IsEqualTo(ScriptCategory.Ability);
+    }
+}