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#------------------------------------------------------------------------------
# Copyright (c) 2021, 2022, Oracle and/or its affiliates.
#
# This software is dual-licensed to you under the Universal Permissive License
# (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
# 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
# either license.
#
# If you elect to accept the software under the Apache License, Version 2.0,
# the following applies:
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#------------------------------------------------------------------------------
"""
4400 - Module for testing TPC (two-phase commit) transactions.
"""
import unittest
import oracledb
import test_env
@unittest.skipIf(test_env.get_is_thin(),
"thin mode doesn't support two-phase commit yet")
class TestCase(test_env.BaseTestCase):
def test_4400_tpc_with_rolback(self):
"4400 - test begin, prepare, roll back global transaction"
self.cursor.execute("truncate table TestTempTable")
xid = self.connection.xid(3900, "txn3900", "branchId")
self.connection.tpc_begin(xid)
self.assertEqual(self.connection.tpc_prepare(), False)
self.connection.tpc_begin(xid)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (1, 'tesName')""")
self.assertEqual(self.connection.tpc_prepare(), True)
self.connection.tpc_rollback()
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, 0)
def test_4401_tpc_with_commit(self):
"4401 - test begin, prepare, commit global transaction"
self.cursor.execute("truncate table TestTempTable")
xid = self.connection.xid(3901, "txn3901", "branchId")
self.connection.tpc_begin(xid)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (1, 'tesName')""")
self.assertEqual(self.connection.tpc_prepare(), True)
self.connection.tpc_commit()
self.cursor.execute("select IntCol, StringCol1 from TestTempTable")
self.assertEqual(self.cursor.fetchall(), [(1, 'tesName')])
def test_4402_tpc_multiple_transactions(self):
"4402 - test multiple global transactions on the same connection"
self.cursor.execute("truncate table TestTempTable")
xid1 = self.connection.xid(3902, "txn3902", "branch1")
xid2 = self.connection.xid(3902, "txn3902", "branch2")
self.connection.tpc_begin(xid1)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (1, 'tesName')""")
self.connection.tpc_end()
self.connection.tpc_begin(xid2)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (2, 'tesName')""")
self.connection.tpc_end()
needs_commit1 = self.connection.tpc_prepare(xid1)
needs_commit2 = self.connection.tpc_prepare(xid2)
if needs_commit1:
self.connection.tpc_commit(xid1)
if needs_commit2:
self.connection.tpc_commit(xid2)
self.cursor.execute("""
select IntCol, StringCol1
from TestTempTable
order by IntCol""")
expected_rows = [(1, 'tesName'), (2, 'tesName')]
self.assertEqual(self.cursor.fetchall(), expected_rows)
def test_4403_rollback_with_xid(self):
"4403 - test rollback with parameter xid"
self.cursor.execute("truncate table TestTempTable")
xid1 = self.connection.xid(3901, "txn3901", "branch1")
xid2 = self.connection.xid(3902, "txn3902", "branch2")
for count, xid in enumerate([xid1, xid2]):
self.connection.tpc_begin(xid)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (:id, 'tesName')""", id=count)
self.connection.tpc_end()
self.connection.tpc_rollback(xid1)
self.assertRaisesRegex(oracledb.DatabaseError, "^ORA-24756",
self.connection.tpc_prepare, xid1)
needs_commit = self.connection.tpc_prepare(xid2)
if needs_commit:
self.connection.tpc_commit(xid2)
self.cursor.execute("""
select IntCol, StringCol1
from TestTempTable
order by IntCol""")
self.assertEqual(self.cursor.fetchall(), [(1, 'tesName')])
if __name__ == "__main__":
test_env.run_test_cases()
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