核心模板架构

Kernel/tests/renderive/scene/Scene2D_Render_Order_Test.cpp

@@ -0,0 +1,33 @@
+#include <gtest/gtest.h>
+#include <cstdint>
+#include <memory>
+#include <vector>
+#include "renderive/renderable/Renderable.hpp"
+#include "renderive/scene/Scene.hpp"
+struct Scene2D_Render_Order_State {
+    std::vector<std::uint64_t> render_order;
+};
+struct Scene2D_Render_Order_Renderable : Renderable_Base {
+    Scene2D_Render_Order_Renderable(Scene_Base& scene, Scene2D_Render_Order_State& state, std::uint64_t id)
+        : Renderable_Base(scene, {.cache_enabled = false}), state(&state), id(id) {}
+    void render(const Scene_Render_Context& context) override {
+        state->render_order.push_back(id);
+        dynamic_cast<Recording_Color_Cache&>(*context.color_cache).append(id);
+    }
+    Scene2D_Render_Order_State* state;
+    std::uint64_t id;
+};
+TEST(scene2d_render_order_test, separates_dependency_order_from_display_order) {
+    Scene2D_Context<> scene;
+    Scene2D_Render_Order_State state;
+    auto spectrum = std::make_shared<Scene2D_Render_Order_Renderable>(scene, state, 2);
+    auto axis = std::make_shared<Scene2D_Render_Order_Renderable>(scene, state, 1);
+    scene.attach_renderable(spectrum);
+    scene.attach_renderable(axis);
+    axis->dependency_node.append_child(spectrum->dependency_node);
+    spectrum->layer_node.append_child(axis->layer_node);
+    scene.render();
+    scene.wait_for_render();
+    EXPECT_EQ(state.render_order, (std::vector<std::uint64_t>{1, 2}));
+    EXPECT_EQ(scene.final_color_cache.values, (std::vector<std::uint64_t>{2, 1}));
+}