add test comment

diff --git a/test/sql/test_cte.py b/test/sql/test_cte.py
index 72e3f506e848e2a62d37ea66e73f66973bf09886..2d19fd05dd0f9dcef2b9cbd7d63741e6b217a435 100644 (file)
--- a/test/sql/test_cte.py
+++ b/test/sql/test_cte.py
@@ -1433,6 +1433,12 @@ class NestingCTETest(fixtures.TestBase, AssertsCompiledSQL):
         )
 
     def test_double_nesting_cte_in_cte(self):
+        """
+        Validate that the SELECT in the 2nd nesting CTE does not render
+        the 1st CTE.
+
+        It implies that nesting CTE level is taken in account.
+        """
         select_1_cte = select([literal(1).label("inner_cte")]).cte(
             "nesting_1", nesting=True
         )