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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.
import wiredtiger, wttest
from wtdataset import SimpleDataSet, SimpleIndexDataSet
from wtdataset import SimpleLSMDataSet, ComplexDataSet, ComplexLSMDataSet
from wtscenario import filter_scenarios, make_scenarios
# test_overwrite.py
# cursor overwrite configuration method
class test_overwrite(wttest.WiredTigerTestCase):
name = 'overwrite'
keyfmt = [
('integer', dict(keyfmt='i')),
('recno', dict(keyfmt='r')),
('string', dict(keyfmt='S')),
]
types = [
('file', dict(uri='file:', lsm=False, ds=SimpleDataSet)),
('lsm', dict(uri='lsm:', lsm=True, ds=SimpleDataSet)),
('table-complex', dict(uri='table:', lsm=False, ds=ComplexDataSet)),
('table-complex-lsm', dict(uri='table:', lsm=True, ds=ComplexLSMDataSet)),
('table-index', dict(uri='table:', lsm=False, ds=SimpleIndexDataSet)),
('table-simple', dict(uri='table:', lsm=False, ds=SimpleDataSet)),
('table-simple-lsm', dict(uri='table:', lsm=True, ds=SimpleLSMDataSet)),
]
# Skip record number keys with LSM.
scenarios = filter_scenarios(make_scenarios(types, keyfmt),
lambda name, d: not (d['lsm'] and d['keyfmt'] == 'r'))
# Confirm a cursor configured with/without overwrite correctly handles
# non-existent records during insert, remove and update operations.
def test_overwrite_insert(self):
uri = self.uri + self.name
ds = self.ds(self, uri, 100, key_format=self.keyfmt)
ds.populate()
# Insert of an existing record with overwrite off fails.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(5))
cursor.set_value(ds.value(1000))
self.assertRaises(wiredtiger.WiredTigerError, lambda: cursor.insert())
# One additional test for the insert method: duplicate the cursor with
# overwrite configured and then the insert should succeed. This test
# is only for the insert method because the remove and update method
# failure modes are for non-existent records, and you cannot duplicate
# cursor pointing to non-existent records.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(5))
dupc = self.session.open_cursor(None, cursor, "overwrite=true")
dupc.set_value(ds.value(1001))
self.assertEquals(dupc.insert(), 0)
# Insert of an existing record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(6))
cursor.set_value(ds.value(1002))
self.assertEquals(cursor.insert(), 0)
# Insert of a non-existent record with overwrite off succeeds.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(200))
cursor.set_value(ds.value(1003))
self.assertEquals(cursor.insert(), 0)
# Insert of a non-existent record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(201))
cursor.set_value(ds.value(1004))
self.assertEquals(cursor.insert(), 0)
def test_overwrite_remove(self):
uri = self.uri + self.name
ds = self.ds(self, uri, 100, key_format=self.keyfmt)
ds.populate()
# Remove of an existing record with overwrite off succeeds.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(5))
self.assertEquals(cursor.remove(), 0)
# Remove of an existing record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(6))
self.assertEquals(cursor.remove(), 0)
# Remove of a non-existent record with overwrite off fails.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(200))
self.assertEquals(cursor.remove(), wiredtiger.WT_NOTFOUND)
# Remove of a non-existent record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(201))
self.assertEquals(cursor.remove(), 0)
def test_overwrite_update(self):
uri = self.uri + self.name
ds = self.ds(self, uri, 100, key_format=self.keyfmt)
ds.populate()
# Update of an existing record with overwrite off succeeds.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(5))
cursor.set_value(ds.value(1005))
self.assertEquals(cursor.update(), 0)
# Update of an existing record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(6))
cursor.set_value(ds.value(1006))
self.assertEquals(cursor.update(), 0)
# Update of a non-existent record with overwrite off fails.
cursor = self.session.open_cursor(uri, None, "overwrite=false")
cursor.set_key(ds.key(200))
cursor.set_value(ds.value(1007))
self.assertEquals(cursor.update(), wiredtiger.WT_NOTFOUND)
# Update of a non-existent record with overwrite on succeeds.
cursor = self.session.open_cursor(uri, None)
cursor.set_key(ds.key(201))
cursor.set_value(ds.value(1008))
self.assertEquals(cursor.update(), 0)
if __name__ == '__main__':
wttest.run()
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