backend-infra-engineer: Release v0.3.9-hotfix7 snapshot

test/e2e/dungeon_layer_rendering_test.h

@@ -0,0 +1,52 @@
+#ifndef YAZE_TEST_E2E_DUNGEON_LAYER_RENDERING_TEST_H_
+#define YAZE_TEST_E2E_DUNGEON_LAYER_RENDERING_TEST_H_
+
+struct ImGuiTestContext;
+
+namespace yaze {
+namespace test {
+
+/**
+ * @brief Toggle BG1 layer visibility and verify canvas updates
+ *
+ * Tests that the BG1 (background layer 1) checkbox in the room card
+ * properly toggles visibility, and the canvas reflects the change.
+ */
+void E2ETest_DungeonLayers_ToggleBG1(ImGuiTestContext* ctx);
+
+/**
+ * @brief Toggle BG2 layer visibility and verify canvas updates
+ *
+ * Tests that the BG2 (background layer 2) checkbox in the room card
+ * properly toggles visibility, and the canvas reflects the change.
+ */
+void E2ETest_DungeonLayers_ToggleBG2(ImGuiTestContext* ctx);
+
+/**
+ * @brief Turn off all layers and verify blank canvas
+ *
+ * Tests that when all layer checkboxes (BG1, BG2) are unchecked,
+ * the canvas renders with no background layers visible.
+ */
+void E2ETest_DungeonLayers_AllLayersOff(ImGuiTestContext* ctx);
+
+/**
+ * @brief Open two rooms and verify independent layer controls
+ *
+ * Tests that each room card maintains its own layer visibility settings.
+ * Toggling layers in one room should not affect another room's display.
+ */
+void E2ETest_DungeonLayers_PerRoomSettings(ImGuiTestContext* ctx);
+
+/**
+ * @brief Verify objects render above background layers
+ *
+ * Tests the rendering order: BG1 -> BG2 -> Objects.
+ * Objects should always appear on top of background layers.
+ */
+void E2ETest_DungeonLayers_ObjectsAboveBackground(ImGuiTestContext* ctx);
+
+}  // namespace test
+}  // namespace yaze
+
+#endif  // YAZE_TEST_E2E_DUNGEON_LAYER_RENDERING_TEST_H_