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#!/usr/bin/env python
#
# Public Domain 2014-present MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
import wiredtiger, wttest
from wtscenario import make_scenarios
# test_prepare11.py
# Test prepare rollback with a reserved update between updates.
class test_prepare11(wttest.WiredTigerTestCase):
conn_config = 'cache_size=2MB'
session_config = 'isolation=snapshot'
format_values = [
('column', dict(key_format='r', key1=17, value_format='S')),
('column-fix', dict(key_format='r', key1=17, value_format='8t')),
('string-row', dict(key_format='S', key1='key1', value_format='S')),
]
commit_values = [
('commit', dict(commit=True)),
('rollback', dict(commit=False)),
]
scenarios = make_scenarios(format_values, commit_values)
def test_prepare_update_rollback(self):
uri = "table:test_prepare11"
format = 'key_format={},value_format={}'.format(self.key_format, self.value_format)
self.session.create(uri, format)
if self.value_format == '8t':
value_x = 120
value_y = 121
else:
value_x = 'xxxx'
value_y = 'yyyy'
self.session.begin_transaction("isolation=snapshot")
# In the scenario where we have a reserved update in between two updates, the key repeated
# flag won't get set and we'll call resolve prepared op on both prepared updates.
c = self.session.open_cursor(uri, None)
c[self.key1] = value_x
c.set_key(self.key1)
c.reserve()
c[self.key1] = value_y
self.session.prepare_transaction('prepare_timestamp=10')
if self.commit:
self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(20))
self.session.timestamp_transaction('durable_timestamp=' + self.timestamp_str(30))
self.session.commit_transaction()
else:
self.session.rollback_transaction()
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