Support "sqlalchemy.future" for engine_from_config

Added the "future" keyword to the list of words that are known by the
:func:`_sa.engine_from_config` function, so that the values "true" and
"false" may be configured as "boolean" values when using a key such
as ``sqlalchemy.future = true`` or ``sqlalchemy.future = false``.

Change-Id: Ib4bba748497cc68e4c913dde54c23a4bb08b4deb

1 files changed, 24 insertions, 0 deletions

diff --git a/test/engine/test_parseconnect.py b/test/engine/test_parseconnect.py
index b39d5f8ad..22853cf37 100644
--- a/test/engine/test_parseconnect.py
+++ b/test/engine/test_parseconnect.py
@@ -394,6 +394,30 @@ class CreateEngineTest(fixtures.TestBase):
         )
         assert e.echo is True
 
+    def test_engine_from_config_future(self):
+        dbapi = mock_dbapi
+
+        config = {
+            "sqlalchemy.url": "postgresql://scott:tiger@somehost/test"
+            "?fooz=somevalue",
+            "sqlalchemy.future": "true",
+        }
+
+        e = engine_from_config(config, module=dbapi, _initialize=False)
+        assert e._is_future
+
+    def test_engine_from_config_not_future(self):
+        dbapi = mock_dbapi
+
+        config = {
+            "sqlalchemy.url": "postgresql://scott:tiger@somehost/test"
+            "?fooz=somevalue",
+            "sqlalchemy.future": "false",
+        }
+
+        e = engine_from_config(config, module=dbapi, _initialize=False)
+        assert not e._is_future
+
     def test_pool_reset_on_return_from_config(self):
         dbapi = mock_dbapi