Add missing suite_level requirements "independent_connections"

In 14b1e6fe8e18d139846c1aba6761d4eea3dc25c3 we added
suite-level requirements but did not add them to the
base, causing failures in third party dialect test suites.

Change-Id: I7edf0be86b814b508071c5c752fc2dd744a3d9ad

diff --git a/lib/sqlalchemy/testing/requirements.py b/lib/sqlalchemy/testing/requirements.py
index 7cef9284e361d49e8fbd7a284ffc93f55ebfa632..9f0f87bb609d681eb8cdd6f278209a69d6ebb86e 100644 (file)
--- a/lib/sqlalchemy/testing/requirements.py
+++ b/lib/sqlalchemy/testing/requirements.py
@@ -912,6 +912,13 @@ class SuiteRequirements(Requirements):
         """
         return exclusions.open()
 
+    @property
+    def independent_connections(self):
+        """
+        Target must support simultaneous, independent database connections.
+        """
+        return exclusions.open()
+
     @property
     def skip_mysql_on_windows(self):
         """Catchall for a large variety of MySQL on Windows failures"""