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Diffstat (limited to 'test/orm/test_joins.py')
-rw-r--r-- | test/orm/test_joins.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/orm/test_joins.py b/test/orm/test_joins.py index e14af635d..01f8627bc 100644 --- a/test/orm/test_joins.py +++ b/test/orm/test_joins.py @@ -447,6 +447,19 @@ class JoinTest(QueryTest, AssertsCompiledSQL): sess.query(literal_column('x'), User).join, Address ) + def test_left_is_none_and_query_has_no_entities(self): + User = self.classes.User + Address = self.classes.Address + + sess = create_session() + + assert_raises_message( + sa_exc.InvalidRequestError, + "No entities to join from; please use select_from\(\) to " + "establish the left entity/selectable of this join", + sess.query().join, Address + ) + def test_isouter_flag(self): User = self.classes.User |