edd comments in unit tests

tests/unit/test_action.py

@@ -17,15 +17,15 @@ def test_position_rotation_shape():
 @pytest.mark.parametrize(
     "axis, input, expected",
     [
-        (0, (1, 1, 0, 0), (1, 1, 0, 0)),
-        (0, (1, 0, 1, 0), (1, 0, 0, -1)),
-        (0, (1, 0, 0, 1), (1, 0, 1, 0)),
-        (1, (1, 1, 0, 0), (1, 0, 0, 1)),
-        (1, (1, 0, 1, 0), (1, 0, 1, 0)),
-        (1, (1, 0, 0, 1), (1, -1, 0, 0)),
-        (2, (1, 1, 0, 0), (1, 0, -1, 0)),
-        (2, (1, 0, 1, 0), (1, 1, 0, 0)),
-        (2, (1, 0, 0, 1), (1, 0, 0, 1)),
+        (0, (1, 1, 0, 0), (1, 1, 0, 0)),  # X -> X
+        (0, (1, 0, 1, 0), (1, 0, 0, -1)),  # Y -> -Z
+        (0, (1, 0, 0, 1), (1, 0, 1, 0)),  # Z -> Y
+        (1, (1, 1, 0, 0), (1, 0, 0, 1)),  # X -> Z
+        (1, (1, 0, 1, 0), (1, 0, 1, 0)),  # Y -> Y
+        (1, (1, 0, 0, 1), (1, -1, 0, 0)),  # Z -> -X
+        (2, (1, 1, 0, 0), (1, 0, -1, 0)),  # X -> -Y
+        (2, (1, 0, 1, 0), (1, 1, 0, 0)),  # Y -> X
+        (2, (1, 0, 0, 1), (1, 0, 0, 1)),  # Z -> Z
     ],
 )
 def test_position_rotation(axis: int, input: Iterable[int], expected: Iterable[int]):