diff --git a/tests/test_world_evalutor.py b/tests/test_world_evalutor.py
index 21eba93..404c142 100644
--- a/tests/test_world_evalutor.py
+++ b/tests/test_world_evalutor.py
@@ -16,7 +16,11 @@ def _evaluate(coco_eval_proc: COCOeval_faster, anns: list):
     coco_eval_proc.params.imgIds = [ann["image_id"] for ann in anns]
     coco_eval_proc.cocoDt = coco_eval_proc.cocoGt.loadRes(anns)
     coco_eval_proc.evaluate()
-    return coco_eval_proc._evalImgs_cpp, coco_eval_proc.params.imgIds
+
+    # num_images * num_area_ranges * num_categories
+    return np.array(coco_eval_proc._evalImgs_cpp).reshape(
+        len(coco_eval_proc.params.catIds), len(coco_eval_proc.params.areaRng), len(coco_eval_proc.params.imgIds)
+    ), coco_eval_proc.params.imgIds
 
 
 class TestWorldCoco(unittest.TestCase):
@@ -75,8 +79,7 @@ def test_world(self):
 
         coco_eval_rank.params.imgIds = eval_img_ids
         coco_eval_rank._paramsEval = copy.deepcopy(coco_eval_rank.params)
-
-        coco_eval_rank._evalImgs_cpp = np.array(eval_imgs).T.ravel().tolist()
+        coco_eval_rank._evalImgs_cpp = np.concatenate(eval_imgs, axis=2).ravel().tolist()
 
         coco_eval_rank.accumulate()
         coco_eval_rank.summarize()
@@ -120,7 +123,8 @@ def test_world_lvis(self):
         coco_eval_rank.params.imgIds = eval_img_ids
         coco_eval_rank._paramsEval = copy.deepcopy(coco_eval_rank.params)
         coco_eval_rank.freq_groups = coco_eval_rank._prepare_freq_group()
-        coco_eval_rank._evalImgs_cpp = np.array(eval_imgs).T.ravel().tolist()
+
+        coco_eval_rank._evalImgs_cpp = np.concatenate(eval_imgs, axis=2).ravel().tolist()
 
         coco_eval_rank.accumulate()
         coco_eval_rank.summarize()