fix engine variant added tests

tests/test_property_reflection.cpp

@@ -0,0 +1,79 @@
+#include <iostream>
+#include <cassert>
+#include "engine/ecs/bindings.hpp"
+#include "engine/ecs/components.hpp"
+#include "engine/core/engine-variant/engine-variant.hpp"
+#include "engine/core/engine-variant/engine-variant-property.hpp"
+#include "engine/core/engine-variant/engine-variant-property-id.hpp"
+#include <entt/entt.hpp>
+
+
+using namespace varicle;
+
+int main() {
+    std::cout << "[TEST] Starting Property Reflection & Type Safety Tests...\n";
+
+    // Setup ECS Registry & Property DB
+    entt::registry registry;
+    PropertyDatabase propDB;
+    register_all_component_properties(propDB);
+
+    // Create an Entity with LocalTransform2D & Sprite
+    entt::entity player = registry.create();
+    registry.emplace<LocalTransform2D>(player, Vec2{10.0f, 20.0f}, 1.5f);
+    registry.emplace<Sprite>(player,"",0.f,0.f,120.f,120.f,false,false,45.0f);
+
+    // =========================================================================
+    // TEST 1: Reading Values via PropertyID (Getter)
+    // =========================================================================
+    {
+        Vec2 pos = propDB.get_value(registry,player,varicle::PropertyID::TransformPosition).get<Vec2>();
+        float scale = propDB.get_value(registry,player,varicle::PropertyID::TransformScale).get<float>();
+        float rot = propDB.get_value(registry,player,varicle::PropertyID::SpriteRotation).get<float>();
+
+        assert(pos.x == 10.0f && pos.y == 20.0f && "Transform position getter failed!");
+        assert(scale == 1.5f && "Transform scale getter failed!");
+        assert(rot == 45.0f && "Sprite rotation getter failed!");
+
+        std::cout << "  [PASS] Test 1: Getters retrieved correct values.\n";
+    }
+
+    // =========================================================================
+    // TEST 2: Writing Values via PropertyID (Setter)
+    // =========================================================================
+    {
+        propDB.set_value(registry,player,varicle::PropertyID::TransformPosition, Vec2{100.0f, 200.0f});
+        std::cout << "setting value: " <<  (propDB.set_value(registry,player,varicle::PropertyID::SpriteRotation, 90.0f) ? "success" : "failed");
+        propDB.set_value(registry,player,varicle::PropertyID::SpriteFlipH, true);
+
+        // Verify the actual component struct in EnTT was mutated directly!
+        const auto& transform = registry.get<LocalTransform2D>(player);
+        const auto& sprite = registry.get<Sprite>(player);
+
+        assert(transform.position.x == 100.0f && transform.position.y == 200.0f && "Position write failed!");
+        assert(sprite.rotation == 90.0f && "Rotation write failed!");
+        assert(sprite.flip_h == true && "FlipH write failed!");
+
+        std::cout << "  [PASS] Test 2: Setters successfully mutated component struct.\n";
+    }
+
+    // =========================================================================
+    // TEST 3: Type Safety Guard (Attempting Wrong Type Assignment)
+    // =========================================================================
+    {
+        std::cout << "  [INFO] Expecting type safety warning below:\n";
+
+        // Try to push a std::string into a float property (SpriteRotation)
+        EngineVariant badType(std::string("WrongTypeData"));
+        propDB.set_value(registry,player,varicle::PropertyID::SpriteRotation, badType);
+
+        // Verify value was NOT modified because type mismatch was caught
+        const auto& sprite = registry.get<Sprite>(player);
+        assert(sprite.rotation == 90.0f && "Type safety guard failed! Wrong type was written!");
+
+        std::cout << "  [PASS] Test 3: Type Safety Guard blocked invalid type write.\n";
+    }
+
+    std::cout << "\n[SUCCESS] All reflection tests passed successfully!\n";
+    return 0;
+}