diff --git a/src/python/pose_format/utils/conftest.py b/src/python/pose_format/utils/conftest.py
index 9075070..b5e98df 100644
--- a/src/python/pose_format/utils/conftest.py
+++ b/src/python/pose_format/utils/conftest.py
@@ -1,11 +1,23 @@
 import copy
-from typing import List
+from typing import List, get_args
 import pytest
 from pose_format import Pose
-from pose_format.utils.generic import get_standard_components_for_known_format, fake_pose
+from pose_format.utils.generic import get_standard_components_for_known_format, fake_pose, KnownPoseFormat
+
 @pytest.fixture
 def fake_poses(request) -> List[Pose]:
     # Access the parameter passed to the fixture
     known_format = request.param
-    components = get_standard_components_for_known_format(known_format)
-    return copy.deepcopy([fake_pose(i * 10 + 10, components=components) for i in range(3)])
+    count = getattr(request, "count", 3)  
+    known_formats = get_args(KnownPoseFormat)
+    if known_format in known_formats:
+
+        components = get_standard_components_for_known_format(known_format)
+        return copy.deepcopy([fake_pose(i * 10 + 10, components=components) for i in range(count)])
+    else:
+        # get openpose
+        fake_poses_list = [fake_pose(i * 10 + 10) for i in range(count)]
+        for i, pose in enumerate(fake_poses_list):
+            for component in pose.header.components:
+                component.name = f"unknown_component_{i}_formerly_{component.name}"
+        return copy.deepcopy(fake_poses_list)