diff --git a/tests/MetaCoreSmokeTests.cpp b/tests/MetaCoreSmokeTests.cpp
index 819fde6..77d3734 100644
--- a/tests/MetaCoreSmokeTests.cpp
+++ b/tests/MetaCoreSmokeTests.cpp
@@ -425,6 +425,43 @@ void MetaCoreTestHierarchyEditingCommandsDirtyAndUndo() {
     MetaCoreExpect(editorContext.GetActiveObjectId() == *createdId, "Redo ReparentSelection should restore moved object selection");
 
     MetaCoreExpect(scenePersistenceService->SaveCurrentScene(editorContext), "Hierarchy command scene should save after reparent");
+
+    const auto multiReparentFirstId = sceneEditingService->CreateGameObject(
+        editorContext,
+        "MultiReparentFirst",
+        false,
+        std::optional<MetaCore::MetaCoreId>{0}
+    );
+    const auto multiReparentSecondId = sceneEditingService->CreateGameObject(
+        editorContext,
+        "MultiReparentSecond",
+        false,
+        std::optional<MetaCore::MetaCoreId>{0}
+    );
+    MetaCoreExpect(multiReparentFirstId.has_value(), "CreateGameObject command should create first multi-reparent object");
+    MetaCoreExpect(multiReparentSecondId.has_value(), "CreateGameObject command should create second multi-reparent object");
+    MetaCoreExpect(scenePersistenceService->SaveCurrentScene(editorContext), "Hierarchy command scene should save before multi-reparent");
+    const std::vector<MetaCore::MetaCoreId> multiReparentSelection{*multiReparentFirstId, *multiReparentSecondId};
+    editorContext.SetSelection(multiReparentSelection, *multiReparentSecondId);
+    MetaCoreExpect(sceneEditingService->ReparentSelection(editorContext, *parentId), "ReparentSelection command should reparent multiple selected objects");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentFirstId).GetParentId() == *parentId, "ReparentSelection should set first selected object parent id");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentSecondId).GetParentId() == *parentId, "ReparentSelection should set second selected object parent id");
+    MetaCoreExpect(editorContext.GetActiveObjectId() == *multiReparentSecondId, "ReparentSelection should keep multi-selection active object");
+    MetaCoreExpect(editorContext.GetSelectedObjectIds() == multiReparentSelection, "ReparentSelection should keep multi-selection list");
+    MetaCoreExpect(scenePersistenceService->IsSceneDirty(), "Multi ReparentSelection command should mark scene dirty");
+    MetaCoreExpect(editorContext.UndoCommand(), "Undo multi ReparentSelection should succeed");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentFirstId).GetParentId() == 0, "Undo multi ReparentSelection should restore first selected object root parent");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentSecondId).GetParentId() == 0, "Undo multi ReparentSelection should restore second selected object root parent");
+    MetaCoreExpect(editorContext.GetActiveObjectId() == *multiReparentSecondId, "Undo multi ReparentSelection should restore active object");
+    MetaCoreExpect(editorContext.GetSelectedObjectIds() == multiReparentSelection, "Undo multi ReparentSelection should restore selection list");
+    MetaCoreExpect(!scenePersistenceService->IsSceneDirty(), "Undo multi ReparentSelection should restore clean baseline");
+    MetaCoreExpect(editorContext.RedoCommand(), "Redo multi ReparentSelection should succeed");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentFirstId).GetParentId() == *parentId, "Redo multi ReparentSelection should restore first selected object parent id");
+    MetaCoreExpect(scene.FindGameObject(*multiReparentSecondId).GetParentId() == *parentId, "Redo multi ReparentSelection should restore second selected object parent id");
+    MetaCoreExpect(editorContext.GetActiveObjectId() == *multiReparentSecondId, "Redo multi ReparentSelection should restore active object");
+    MetaCoreExpect(editorContext.GetSelectedObjectIds() == multiReparentSelection, "Redo multi ReparentSelection should restore selection list");
+
+    MetaCoreExpect(scenePersistenceService->SaveCurrentScene(editorContext), "Hierarchy command scene should save after multi-reparent");
     editorContext.SelectOnly(*createdId);
     const std::size_t countBeforeDuplicate = scene.GetGameObjects().size();
     MetaCoreExpect(clipboardService->DuplicateSelection(editorContext), "DuplicateSelection command should duplicate selected object");