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#!/usr/bin/env python
#
# Public Domain 2014-2019 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.
#
# test_assert07.py
# Verify that the resolved update assertion does not get triggerd by having
# reserved updates at different locations in the update chain.
#
from suite_subprocess import suite_subprocess
import wiredtiger, wttest
def timestamp_str(t):
return '%x' % t
class test_assert07(wttest.WiredTigerTestCase, suite_subprocess):
def apply_timestamps(self, timestamp):
self.session.prepare_transaction(
'prepare_timestamp=' + timestamp_str(timestamp))
self.session.timestamp_transaction(
'commit_timestamp=' + timestamp_str(timestamp))
self.session.timestamp_transaction(
'durable_timestamp=' + timestamp_str(timestamp))
def test_timestamp_alter(self):
base = 'assert07'
uri = 'file:' + base
# No reserved, single update.
self.session.create(uri, 'key_format=S,value_format=S')
c = self.session.open_cursor(uri)
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value1'
self.apply_timestamps(1)
self.session.commit_transaction()
# Reserved at the start of the chain, with one update.
self.session.begin_transaction('isolation=snapshot')
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value2'
self.apply_timestamps(2)
self.session.commit_transaction()
# Reserved at the end of the chain, with one update.
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value3'
c.set_key('key_ts1')
c.reserve()
self.apply_timestamps(3)
self.session.commit_transaction()
# Reserved at the start of the chain, with multiple.
self.session.begin_transaction('isolation=snapshot')
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value4'
c['key_ts1'] = 'value5'
self.apply_timestamps(4)
self.session.commit_transaction()
# Reserved at the end of the chain, with multiple updates.
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value6'
c['key_ts1'] = 'value7'
c.set_key('key_ts1')
c.reserve()
self.apply_timestamps(5)
self.session.commit_transaction()
# Reserved between two updates.
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value8'
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value9'
self.apply_timestamps(6)
self.session.commit_transaction()
# Reserved update with multiple extra updates.
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value10'
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value11'
c['key_ts1'] = 'value12'
c['key_ts1'] = 'value13'
self.apply_timestamps(7)
self.session.commit_transaction()
# Reserved updates with multiple extra updates.
self.session.begin_transaction('isolation=snapshot')
c['key_ts1'] = 'value14'
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value15'
c['key_ts1'] = 'value16'
c.set_key('key_ts1')
c.reserve()
c['key_ts1'] = 'value17'
self.apply_timestamps(8)
self.session.commit_transaction()
if __name__ == '__main__':
wttest.run()
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