diff --git a/testing/test_conftest.py b/testing/test_conftest.py
index 1de92ec06..bff68e6d2 100644
--- a/testing/test_conftest.py
+++ b/testing/test_conftest.py
@@ -312,21 +312,25 @@ class TestConftestVisibility:
     # N.B.: "swc" stands for "subdir with conftest.py"
     #       "snc" stands for "subdir no [i.e. without] conftest.py"
     @pytest.mark.parametrize("chdir,testarg,expect_ntests_passed", [
+	# Effective target: package/..
         ("runner",  "..",               3),
         ("package", "..",               3),
         ("swc",     "../..",            3),
         ("snc",     "../..",            3),
 
+	# Effective target: package
         ("runner",  "../package",       3),
         ("package", ".",                3),
         ("swc",     "..",               3),
         ("snc",     "..",               3),
 
+	# Effective target: package/swc
         ("runner",  "../package/swc",   1),
         ("package", "./swc",            1),
         ("swc",     ".",                1),
         ("snc",     "../swc",           1),
 
+	# Effective target: package/snc
         ("runner",  "../package/snc",   1),
         ("package", "./snc",            1),
         ("swc",     "../snc",           1),