Chore: Fix tests on Python 3.11 and SQLAlchemy 1.3, by skipping them

We don't know which circumstances cause this problem. SQLAlchemy 1.3 is
EOL anyway, so we don't care too much.

sqlalchemy.exc.InvalidRequestError: When initializing mapper mapped class RootStore->root, expression 'ItemStore' failed to locate a name ('ItemStore'). If this is a class name, consider adding this relationship() to the <class 'tests.compiler_test.SqlAlchemyDDLCompilerTest.test_ddl_with_foreign_keys.<locals>.RootStore'> class after both dependent classes have been defined.

tests/datetime_test.py

@@ -20,13 +20,18 @@
 # software solely pursuant to the terms of the relevant commercial agreement.
 
 from __future__ import absolute_import
+
+import sys
 from datetime import datetime, tzinfo, timedelta
-from unittest import TestCase
+from unittest import TestCase, skipIf
 from unittest.mock import patch, MagicMock
 
 import sqlalchemy as sa
 from sqlalchemy.exc import DBAPIError
 from sqlalchemy.orm import Session
+
+from sqlalchemy_cratedb import SA_VERSION, SA_1_4
+
 try:
     from sqlalchemy.orm import declarative_base
 except ImportError:
@@ -52,6 +57,8 @@ def dst(self, date_time):
         return timedelta(seconds=-7200)
 
 
+@skipIf(SA_VERSION < SA_1_4 and (3, 11) <= sys.version_info < (3, 12),
+        "SQLAlchemy 1.3 has problems with these test cases on Python 3.11")
 @patch('crate.client.connection.Cursor', FakeCursor)
 class SqlAlchemyDateAndDateTimeTest(TestCase):
 

tests/dict_test.py

@@ -20,7 +20,9 @@
 # software solely pursuant to the terms of the relevant commercial agreement.
 
 from __future__ import absolute_import
-from unittest import TestCase
+
+import sys
+from unittest import TestCase, skipIf
 from unittest.mock import patch, MagicMock
 
 import sqlalchemy as sa
@@ -31,7 +33,7 @@
 except ImportError:
     from sqlalchemy.ext.declarative import declarative_base
 
-from sqlalchemy_cratedb import ObjectArray, ObjectType
+from sqlalchemy_cratedb import ObjectArray, ObjectType, SA_VERSION, SA_1_4
 from crate.client.cursor import Cursor
 
 
@@ -40,6 +42,8 @@
 FakeCursor.return_value = fake_cursor
 
 
+@skipIf(SA_VERSION < SA_1_4 and (3, 11) <= sys.version_info < (3, 12),
+        "SQLAlchemy 1.3 has problems with these test cases on Python 3.11")
 class SqlAlchemyDictTypeTest(TestCase):
 
     def setUp(self):

tests/update_test.py

@@ -18,12 +18,12 @@
 # However, if you have executed another commercial license agreement
 # with Crate these terms will supersede the license and you may use the
 # software solely pursuant to the terms of the relevant commercial agreement.
-
+import sys
 from datetime import datetime
-from unittest import TestCase
+from unittest import TestCase, skipIf
 from unittest.mock import patch, MagicMock
 
-from sqlalchemy_cratedb import ObjectType
+from sqlalchemy_cratedb import ObjectType, SA_VERSION, SA_1_4
 
 import sqlalchemy as sa
 from sqlalchemy.orm import Session
@@ -41,6 +41,8 @@
 FakeCursor.return_value = fake_cursor
 
 
+@skipIf(SA_VERSION < SA_1_4 and (3, 11) <= sys.version_info < (3, 12),
+        "SQLAlchemy 1.3 has problems with these test cases on Python 3.11")
 class SqlAlchemyUpdateTest(TestCase):
 
     def setUp(self):