add test for extracting bbox from template

Author: AhmetNSimsek

e2e/volumes/test_extracting_bbox_from_template.py

@@ -0,0 +1,23 @@
+import pytest
+import siibra
+from nibabel import Nifti1Image
+
+
+vois = [
+    siibra.locations.BoundingBox(
+        (-54.90, -29.47, 12.66), (12.69, 35.12, 20.24), "bigbrain"
+    ),
+    siibra.locations.BoundingBox(
+        (-154.90, -29.47, 12.66), (112.69, 38.12, 80.24), "bigbrain"
+    ),
+    siibra.locations.BoundingBox(
+        (-54.90, -29.47, 12.66), (12.69, 38.12, 80.24), "bigbrain"
+    ),
+]
+
+
+@pytest.mark.parametrize("voi", vois)
+def test_fetching_voi(voi):
+    assert isinstance(
+        voi.space.get_template().fetch(voi=voi, resolution_mm=0.52), Nifti1Image
+    )