alessandro-nori commented on code in PR #1629:
URL: https://github.com/apache/iceberg-python/pull/1629#discussion_r1957078977


##########
tests/catalog/test_sql.py:
##########
@@ -1117,17 +1117,30 @@ def 
test_create_namespace_with_empty_identifier(catalog: SqlCatalog, empty_names
         lazy_fixture("catalog_sqlite"),
     ],
 )
-@pytest.mark.parametrize("namespace_list", [lazy_fixture("database_list"), 
lazy_fixture("hierarchical_namespace_list")])
-def test_list_namespaces(catalog: SqlCatalog, namespace_list: List[str]) -> 
None:
+def test_list_namespaces(catalog: SqlCatalog) -> None:
+    namespace_list = ["db", "db.ns1", "db.ns1.ns2", "db.ns2", "db2", 
"db2.ns1", "db%"]
     for namespace in namespace_list:
         catalog.create_namespace(namespace)
-    # Test global list
+
     ns_list = catalog.list_namespaces()
-    for namespace in namespace_list:
-        assert Catalog.identifier_to_tuple(namespace) in ns_list
-        # Test individual namespace list
-        assert len(one_namespace := catalog.list_namespaces(namespace)) == 1
-        assert Catalog.identifier_to_tuple(namespace) == one_namespace[0]
+    expected_list: list[tuple[str, ...]] = [("db",), ("db2",), ("db%",)]
+    for ns in expected_list:
+        assert ns in ns_list

Review Comment:
   Another note, the first `assert ns_list == expected_list` does not work as 
expected because the catalog contains other namespaces created in other tests.
   ```
           ns_list = catalog.list_namespaces()
   >       assert sorted(ns_list) == [("db",), ("db%",), ("db2",)]
   E       AssertionError: assert [('db',), ('d...t_new',), ...] == [('db',), 
('db%',), ('db2',)]
   E         Left contains 109 more items, first extra item: 
('my_iceberg_database-alcotyqwtpiqunaddobf',)
   ```



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