basic tests for a wider variety of files

tests/components/DamageComponentUnitTest.cs

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+using Godot;
+using GdUnit4;
+using static GdUnit4.Assertions;
+using Movementtests.interfaces;
+using Movementtests.systems.damage;
+
+namespace Movementtests.tests;
+
+[TestSuite, RequireGodotRuntime]
+public class DamageComponentUnitTest
+{
+    [TestCase]
+    public void DamageModifier_Applies_WhenTypeMatches()
+    {
+        var modifier = new RDamageModifier(EDamageTypes.Normal, 2.0f);
+        var input = new DamageRecord(Vector3.Zero, new RDamage(10.0f, EDamageTypes.Normal));
+
+        var result = modifier.TakeDamage(input);
+        AssertFloat(result.Damage.DamageDealt).IsEqual(20.0f);
+    }
+
+    [TestCase]
+    public void DamageModifier_Ignores_WhenTypeDifferent()
+    {
+        var modifier = new RDamageModifier(EDamageTypes.Fire, 3.0f);
+        var input = new DamageRecord(Vector3.Zero, new RDamage(10.0f, EDamageTypes.Normal));
+
+        var result = modifier.TakeDamage(input);
+        AssertFloat(result.Damage.DamageDealt).IsEqual(0.0f);
+    }
+
+    [TestCase]
+    public void CDamageable_Sums_All_Modifiers()
+    {
+        var mod1 = new RDamageModifier(EDamageTypes.Normal, 1.0f);
+        var mod2 = new RDamageModifier(EDamageTypes.Normal, 0.5f);
+
+        var cDamageable = new CDamageable();
+        cDamageable.DamageModifiers = new[] { mod1, mod2 };
+
+        var input = new DamageRecord(Vector3.Zero, new RDamage(10.0f, EDamageTypes.Normal));
+        var result = cDamageable.TakeDamage(input);
+
+        // 10*1.0 + 10*0.5 = 15
+        AssertFloat(result.Damage.DamageDealt).IsEqual(15.0f);
+    }
+
+    [TestCase]
+    public void CDamageable_ComputeDamage_DoesNotEmit()
+    {
+        var mod = new RDamageModifier(EDamageTypes.Normal, 2.0f);
+        var cDamageable = new CDamageable();
+        cDamageable.DamageModifiers = new[] { mod };
+
+        var input = new DamageRecord(Vector3.Zero, new RDamage(5.0f, EDamageTypes.Normal));
+        var result = cDamageable.ComputeDamage(input);
+        AssertFloat(result.Damage.DamageDealt).IsEqual(10.0f);
+    }
+}

tests/components/DamageComponentUnitTest.cs.uid

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+uid://db6rva7uccppc

tests/components/HealthComponentUnitTest.cs

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+using Godot;
+using GdUnit4;
+using static GdUnit4.Assertions;
+using Movementtests.interfaces;
+using Movementtests.systems.damage;
+
+namespace Movementtests.tests;
+
+[TestSuite, RequireGodotRuntime]
+public class HealthComponentUnitTest
+{
+    [TestCase]
+    public void ReadyInitializesCurrentHealth()
+    {
+        var cHealth = new CHealth();
+        cHealth.RHealth = new RHealth(150.0f);
+        // Simulate Godot ready
+        cHealth._Ready();
+        AssertFloat(cHealth.CurrentHealth).IsEqual(150.0f);
+    }
+
+    [TestCase]
+    public void ReduceHealthDecreasesAndDoesNotDeplete()
+    {
+        var cHealth = new CHealth();
+        cHealth.RHealth = new RHealth(100.0f);
+        cHealth.CurrentHealth = 100.0f;
+
+        var damage = new DamageRecord(Vector3.Zero, new RDamage(25.0f, EDamageTypes.Normal));
+        var record = cHealth.ReduceHealth(source: null!, damageRecord: damage);
+
+        AssertFloat(cHealth.CurrentHealth).IsEqual(75.0f);
+        AssertFloat(record.CurrentHealth).IsEqual(75.0f);
+        AssertFloat(record.PreviousHealth).IsEqual(100.0f);
+        AssertFloat(record.MaxHealth).IsEqual(100.0f);
+    }
+
+    [TestCase]
+    public void ReduceHealthTriggersDepletionToZero()
+    {
+        var cHealth = new CHealth();
+        cHealth.RHealth = new RHealth(50.0f);
+        cHealth.CurrentHealth = 50.0f;
+
+        bool depleted = false;
+        cHealth.HealthDepleted += _ => depleted = true;
+
+        var damage = new DamageRecord(Vector3.Zero, new RDamage(100.0f, EDamageTypes.Normal));
+        var record = cHealth.ReduceHealth(source: null!, damageRecord: damage);
+
+        AssertBool(depleted).IsTrue();
+        AssertFloat(cHealth.CurrentHealth).IsEqual(0.0f);
+        AssertFloat(record.CurrentHealth).IsEqual(-50.0f);
+        AssertFloat(record.MaxHealth).IsEqual(50.0f);
+    }
+}

tests/components/HealthComponentUnitTest.cs.uid

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+uid://bd52i51hncgmf

tests/components/KnockbackComponentUnitTest.cs

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+using Godot;
+using GdUnit4;
+using static GdUnit4.Assertions;
+using Movementtests.interfaces;
+
+namespace Movementtests.tests;
+
+[TestSuite, RequireGodotRuntime]
+public class KnockbackComponentUnitTest
+{
+    [TestCase]
+    public void RegisterAndComputeKnockback_Works_And_Resets()
+    {
+        var cKnock = new CKnockback();
+        cKnock.RKnockback = new RKnockback(2.0f);
+        cKnock.GlobalPosition = Vector3.Zero;
+
+        var damage = new DamageRecord(new Vector3(10, 0, 0), new RDamage(0, Movementtests.systems.damage.EDamageTypes.Normal));
+        var record = new KnockbackRecord(damage, 1.5f);
+
+        cKnock.RegisterKnockback(record);
+        var force = cKnock.ComputeKnockback();
+
+        // Direction from source(10,0,0) to target(0,0,0) is (-1,0,0), scaled by modifier(2) and multiplier(1.5) => (-3,0,0)
+        AssertVector(force).IsEqual(new Vector3(-3, 0, 0));
+
+        // Second call returns zero since internal state resets
+        var second = cKnock.ComputeKnockback();
+        AssertVector(second).IsEqual(Vector3.Zero);
+    }
+}

tests/components/KnockbackComponentUnitTest.cs.uid

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+uid://bv0eionbgbig5

tests/components/MovementSystemUnitTest.cs

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+using Godot;
+using GdUnit4;
+using static GdUnit4.Assertions;
+using Movementtests.interfaces;
+using Movementtests.scenes.movement;
+
+namespace Movementtests.tests;
+
+[TestSuite, RequireGodotRuntime]
+public class MovementSystemUnitTest
+{
+    [TestCase]
+    public void GroundedMovement_Accelerates_And_Applies_Gravity()
+    {
+        var move = new CGroundedMovement();
+        move.RMovement = new RMovement(speed: 10.0f, acceleration: 1.0f, gravityModifier: 0.5f, targetHeight: 0.0f);
+        move.WallInFrontRayCast = new RayCast3D();
+        move.GlobalPosition = Vector3.Zero;
+
+        var inputs = new MovementInputs(
+            Velocity: Vector3.Zero,
+            TargetLocation: new Vector3(10, 0, 0),
+            isOnFloor: false,
+            gravity: Vector3.Down * 9.8f,
+            delta: 1.0
+        );
+
+        var v = move.ComputeVelocity(inputs);
+
+        AssertVector(v).IsEqualApprox(new Vector3(10, -4.9f, 0), new Vector3(0.0001f, 0.0001f, 0.0001f));
+    }
+}

tests/components/MovementSystemUnitTest.cs.uid

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+uid://cofj5s4x74ay