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#!/usr/bin/env python
#
# Public Domain 2014-2015 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_txn03.py
# Transactions: using multiple cursor and session handles
#
import wiredtiger, wttest
from wtscenario import check_scenarios
class test_txn03(wttest.WiredTigerTestCase):
tablename = 'test_txn03'
uri1 = 'table:' + tablename + "_1"
uri2 = 'table:' + tablename + "_2"
key_str = "TEST_KEY1"
data_str1 = "VAL"
data_str2 = "TEST_VAL1"
nentries = 1000
scenarios = check_scenarios([
('var', dict(create_params = "key_format=S,value_format=S")),
])
# Overrides WiredTigerTestCase
def setUpConnectionOpen(self, dir):
conn = wiredtiger.wiredtiger_open(dir, 'create,' +
('error_prefix="%s: ",' % self.shortid()))
self.pr(`conn`)
return conn
def test_ops(self):
self.session.create(self.uri1, self.create_params)
self.session.create(self.uri2, self.create_params)
# Set up the table with entries for 1 and 10
# We use the overwrite config so insert can update as needed.
c = self.session.open_cursor(self.uri1, None, 'overwrite')
c[self.key_str] = self.data_str1
c.close()
c = self.session.open_cursor(self.uri2, None, 'overwrite')
c[self.key_str] = self.data_str1
c.close()
# Update the first table - this update should be visible in the
# new session.
self.session.begin_transaction()
c = self.session.open_cursor(self.uri1, None, 'overwrite')
c[self.key_str] = self.data_str2
self.session.commit_transaction()
c.close()
# Open another session and some transactional cursors.
self.session2 = self.conn.open_session()
self.session2.begin_transaction("isolation=snapshot")
t1c = self.session2.open_cursor(self.uri1, None, 'overwrite')
t2c = self.session2.open_cursor(self.uri2, None, 'overwrite')
# Make an update in the first session.
self.session.begin_transaction()
c = self.session.open_cursor(self.uri2, None, 'overwrite')
c[self.key_str] = self.data_str2
self.session.commit_transaction()
c.close()
t1c.set_key(self.key_str)
t1c.search()
t2c.set_key(self.key_str)
t2c.search()
self.assertEqual(t1c.get_value(), self.data_str2)
self.assertEqual(t2c.get_value(), self.data_str1)
# Clean up
t1c.close()
t2c.close()
self.session2.rollback_transaction()
if __name__ == '__main__':
wttest.run()
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