SQLAlchemy: Test suite adjustments for pandas software tests

Author: amotl

docs/conf.py

@@ -18,6 +18,7 @@
 
 
 linkcheck_anchors = True
+linkcheck_ignore = [r"https://github.com/crate/cratedb-examples/blob/main/by-language/python-sqlalchemy/.*"]
 
 
 rst_prolog = """

setup.py

@@ -70,7 +70,7 @@ def read(path):
               'createcoverage>=1,<2',
               'stopit>=1.1.2,<2',
               'flake8>=4,<7',
-              'pandas>=2,<3',
+              'pandas',
               'pytz',
               # `test_http.py` needs `setuptools.ssl_support`
               'setuptools<57',

src/crate/client/sqlalchemy/tests/bulk_test.py

@@ -19,13 +19,14 @@
 # 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 math
+import sys
 from unittest import TestCase, skipIf
 from unittest.mock import patch, MagicMock
 
 import sqlalchemy as sa
 from sqlalchemy.orm import Session
 
-from crate.client.sqlalchemy.sa_version import SA_VERSION, SA_2_0
+from crate.client.sqlalchemy.sa_version import SA_VERSION, SA_2_0, SA_1_4
 
 try:
     from sqlalchemy.orm import declarative_base
@@ -168,12 +169,13 @@ def test_bulk_save_modern(self):
         )
         self.assertSequenceEqual(expected_bulk_args, bulk_args)
 
+    @skipIf(sys.version_info < (3, 8), "SQLAlchemy/pandas is not supported on Python <3.8")
+    @skipIf(SA_VERSION < SA_1_4, "SQLAlchemy 1.3 is not supported by pandas")
     @patch('crate.client.connection.Cursor', mock_cursor=FakeCursor)
     def test_bulk_save_pandas(self, mock_cursor):
         """
         Verify bulk INSERT with pandas.
         """
-        import sqlalchemy as sa
         from pandas._testing import makeTimeDataFrame
         from crate.client.sqlalchemy.support import insert_bulk
 

src/crate/client/tests.py

@@ -24,6 +24,7 @@
 import json
 import os
 import socket
+import sys
 import unittest
 import doctest
 from pprint import pprint
@@ -40,6 +41,7 @@
     crate_host, crate_path, crate_port, \
     crate_transport_port, docs_path, localhost
 from crate.client import connect
+from .sqlalchemy import SA_VERSION, SA_1_4
 
 from .test_cursor import CursorTest
 from .test_connection import ConnectionTest
@@ -382,13 +384,23 @@ def test_suite():
     s.layer = ensure_cratedb_layer()
     suite.addTest(s)
 
-    s = doctest.DocFileSuite(
+    sqlalchemy_integration_tests = [
         'docs/by-example/sqlalchemy/getting-started.rst',
         'docs/by-example/sqlalchemy/crud.rst',
         'docs/by-example/sqlalchemy/working-with-types.rst',
         'docs/by-example/sqlalchemy/advanced-querying.rst',
         'docs/by-example/sqlalchemy/inspection-reflection.rst',
-        'docs/by-example/sqlalchemy/dataframe.rst',
+    ]
+
+    # Don't run DataFrame integration tests on SQLAlchemy 1.3 and Python 3.7.
+    skip_dataframe = SA_VERSION < SA_1_4 or sys.version_info < (3, 8)
+    if not skip_dataframe:
+        sqlalchemy_integration_tests += [
+            'docs/by-example/sqlalchemy/dataframe.rst',
+        ]
+
+    s = doctest.DocFileSuite(
+        *sqlalchemy_integration_tests,
         module_relative=False,
         setUp=setUpCrateLayerSqlAlchemy,
         tearDown=tearDownDropEntitiesSqlAlchemy,