diff options
Diffstat (limited to 'test/sql')
| -rw-r--r-- | test/sql/test_selectable.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/sql/test_selectable.py b/test/sql/test_selectable.py index 147e47cd9..f5f61aab1 100644 --- a/test/sql/test_selectable.py +++ b/test/sql/test_selectable.py @@ -57,7 +57,20 @@ class SelectableTest(TestBase, AssertsExecutionResults): # test alias of the join j2 = jjj.alias('foo') assert j2.corresponding_column(table1.c.col1) is j2.c.table1_col1 + + def test_against_cloned_non_table(self): + # test that corresponding column digs across + # clone boundaries with anonymous labeled elements + col = func.count().label('foo') + sel = select([col]) + + sel2 = visitors.ReplacingCloningVisitor().traverse(sel) + assert sel2.corresponding_column(col) is sel2.c.foo + sel3 = visitors.ReplacingCloningVisitor().traverse(sel2) + assert sel3.corresponding_column(col) is sel3.c.foo + + def test_select_on_table(self): sel = select([table1, table2], use_labels=True) assert sel.corresponding_column(table1.c.col1) is sel.c.table1_col1 |