diff --git a/tests/unit/viewport-canvas.test.tsx b/tests/unit/viewport-canvas.test.tsx
index aa68cf89..9fbc5b4c 100644
--- a/tests/unit/viewport-canvas.test.tsx
+++ b/tests/unit/viewport-canvas.test.tsx
@@ -12,7 +12,12 @@ import type { ArmedTerrainBrushState } from "../../src/core/terrain-brush";
 import { createBoxBrush } from "../../src/document/brushes";
 import { createEmptySceneDocument } from "../../src/document/scene-document";
 import { createTerrain } from "../../src/document/terrains";
-import { EditorSimulationController } from "../../src/runtime-three/editor-simulation-controller";
+import {
+  EditorSimulationController,
+  type EditorSimulationFrameSnapshot
+} from "../../src/runtime-three/editor-simulation-controller";
+import { createRuntimeClockState } from "../../src/runtime-three/runtime-project-time";
+import { buildRuntimeSceneFromDocument } from "../../src/runtime-three/runtime-scene-build";
 import { ViewportCanvas } from "../../src/viewport-three/ViewportCanvas";
 import {
   createDefaultViewportPanelCameraState,