diff --git a/rerun_py/tests/unit/test_leaf_transforms3d.py b/rerun_py/tests/unit/test_leaf_transforms3d.py
index f0df1d4d57a74..d12615166b8f0 100644
--- a/rerun_py/tests/unit/test_leaf_transforms3d.py
+++ b/rerun_py/tests/unit/test_leaf_transforms3d.py
@@ -78,8 +78,8 @@ def test_leaf_transform3d() -> None:
         )
         print(f"{arch}\n")
 
-        assert arch.translations == rr.components.LeafTranslation3DBatch._optional(translations)
-        assert arch.rotation_axis_angles == rr.components.LeafRotationAxisAngleBatch._optional(rotation_axis_angles)
-        assert arch.quaternions == rr.components.LeafRotationQuatBatch._optional(quaternions)
-        assert arch.scales == rr.components.LeafScale3DBatch._optional(scales)
-        assert arch.mat3x3 == rr.components.LeafTransformMat3x3Batch._optional(mat3x3)
+        assert arch.translations == rr.components.LeafTranslation3DBatch._required(translations)
+        assert arch.rotation_axis_angles == rr.components.LeafRotationAxisAngleBatch._required(rotation_axis_angles)
+        assert arch.quaternions == rr.components.LeafRotationQuatBatch._required(quaternions)
+        assert arch.scales == rr.components.LeafScale3DBatch._required(scales)
+        assert arch.mat3x3 == rr.components.LeafTransformMat3x3Batch._required(mat3x3)
diff --git a/rerun_py/tests/unit/test_transform3d.py b/rerun_py/tests/unit/test_transform3d.py
index c59ba9943707d..f2d337bc6da7f 100644
--- a/rerun_py/tests/unit/test_transform3d.py
+++ b/rerun_py/tests/unit/test_transform3d.py
@@ -126,25 +126,25 @@ def test_transform3d() -> None:
         )
         print(f"{arch}\n")
 
-        assert arch.scale == rr.components.Scale3DBatch._optional(
+        assert arch.scale == rr.components.Scale3DBatch._required(
             none_empty_or_value(scale, rr.components.Scale3D(scale))  # type: ignore[arg-type]
         )
-        assert arch.rotation_axis_angle == rr.components.RotationAxisAngleBatch._optional(
+        assert arch.rotation_axis_angle == rr.components.RotationAxisAngleBatch._required(
             none_empty_or_value(rotation_axis_angle, rr.components.RotationAxisAngle([1, 2, 3], Angle(deg=10)))
         )
-        assert arch.quaternion == rr.components.RotationQuatBatch._optional(
+        assert arch.quaternion == rr.components.RotationQuatBatch._required(
             none_empty_or_value(quaternion, rr.components.RotationQuat(xyzw=[1, 2, 3, 4]))
         )
-        assert arch.translation == rr.components.Translation3DBatch._optional(
+        assert arch.translation == rr.components.Translation3DBatch._required(
             none_empty_or_value(translation, rr.components.Translation3D([1, 2, 3]))
         )
-        assert arch.mat3x3 == rr.components.TransformMat3x3Batch._optional(
+        assert arch.mat3x3 == rr.components.TransformMat3x3Batch._required(
             none_empty_or_value(mat3x3, rr.components.TransformMat3x3([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
         )
-        assert arch.axis_length == rr.components.AxisLengthBatch._optional(
+        assert arch.axis_length == rr.components.AxisLengthBatch._required(
             none_empty_or_value(axis_length, rr.components.AxisLength(1.0))
         )
-        assert arch.relation == rr.components.TransformRelationBatch._optional(relation)
+        assert arch.relation == rr.components.TransformRelationBatch._required(relation)
 
 
 def test_transform_mat3x3_snippets() -> None: