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#!/usr/bin/env python
#
# Copyright (c) 2008-2012 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_base06.py
# session level operations on tables
#
import unittest
import wiredtiger
from wiredtiger import WiredTigerError
import wttest
import time
import os
class test_base06(wttest.WiredTigerTestCase):
"""
Test various session level operations on tables, including
rename, drop, sync, truncate
"""
table_name1 = 'test_base06a'
table_name2 = 'test_base06b'
#nentries = 1000
nentries = 30
def populate(self, tablename):
create_args = 'key_format=i,value_format=S'
self.session.create("table:" + tablename, create_args)
cursor = self.session.open_cursor('table:' + tablename, None, None)
for i in range(0, self.nentries):
cursor.set_key(i)
cursor.set_value(str(i))
cursor.insert()
self.pr('populate: ' + tablename + ': added ' + str(self.nentries))
cursor.close()
def checkContents(self, tablename):
cursor = self.session.open_cursor('table:' + tablename, None, None)
want = 0
for key,val in cursor:
self.assertEqual(key, want)
self.assertEqual(val, str(want))
want += 1
self.assertEqual(want, self.nentries)
cursor.close()
def checkDoesNotExist(self, t):
self.assertFalse(os.path.exists(t + ".wt"))
self.assertRaises(WiredTigerError, lambda:
self.session.open_cursor('table:' + t,
None, None))
def setupCursor(self, tablename, value):
if value == None:
return None
cursor = self.session.open_cursor('table:' + tablename, None, None)
if value >= 0 and value < self.nentries:
cursor.set_key(value)
self.assertEqual(cursor.search(), 0)
return cursor
def truncateRangeAndCheck(self, tablename, begin, end):
self.pr('truncateRangeAndCheck: ' + str(begin) + ',' + str(end))
self.populate(tablename)
cur1 = self.setupCursor(tablename, begin)
cur2 = self.setupCursor(tablename, end)
beginerror = (begin != None and begin < 0)
if not cur1 and not cur2:
self.session.truncate('table:' + tablename, None, None, None)
elif beginerror:
self.assertRaises(WiredTigerError, lambda:
self.session.truncate(None, cur1, cur2, None))
else:
self.session.truncate(None, cur1, cur2, None)
if cur1:
cur1.close()
if cur2:
cur2.close()
if begin is None:
begin = 0
if end is None:
end = self.nentries - 1
cursor = self.session.open_cursor('table:' + tablename, None, None)
self.pr('truncate(' + str(begin) + ' through ' + str(end) + ') => ' + \
str([i for i in cursor]))
cursor.close()
cursor = self.session.open_cursor('table:' + tablename, None, None)
want = 0
# skip over numbers truncated
if (not beginerror) and want >= begin and want <= end:
want = end + 1
for key,val in cursor:
self.assertEqual(key, want)
self.assertEqual(val, str(want))
want += 1
# skip over numbers truncated
if want >= begin and want <= end:
want = end + 1
self.assertEqual(want, self.nentries)
cursor.close()
def checkEmpty(self, t):
cursor = self.session.open_cursor('table:' + t, None, None)
got = 0
for key,val in cursor:
got += 1
self.assertEqual(got, 0)
cursor.close()
def test_nop(self):
""" Make sure our test functions work """
self.populate(self.table_name1)
self.checkContents(self.table_name1)
self.checkDoesNotExist(self.table_name2)
def test_rename(self):
self.populate(self.table_name1)
self.session.rename('table:' + self.table_name1,
'table:' + self.table_name2, None)
self.checkContents(self.table_name2)
self.checkDoesNotExist(self.table_name1)
self.session.rename('table:' + self.table_name2,
'table:' + self.table_name1, None)
self.checkContents(self.table_name1)
self.checkDoesNotExist(self.table_name2)
self.assertRaises(WiredTigerError, lambda:
self.session.rename('table:' + self.table_name2,
'table:' + self.table_name1, None))
def test_drop(self):
self.populate(self.table_name1)
self.session.drop('table:' + self.table_name1, None)
self.checkDoesNotExist(self.table_name1)
self.session.drop('table:' + self.table_name1, 'force')
self.assertRaises(WiredTigerError, lambda:
self.session.drop('table:' + self.table_name1, None))
def test_truncate(self):
self.populate(self.table_name1)
self.session.truncate('table:' + self.table_name1, None, None, None)
self.checkEmpty(self.table_name1)
self.session.drop('table:' + self.table_name1, None)
def test_truncate_cursor(self):
# Test using cursors for the begin and end of truncate
# For begin and end, the following applies:
# None means pass None for the cursor arg to truncate
# An integer N, with 0 <= N < self.nentries, passes
# a cursor positioned at that element. 0 positions
# a cursor before the first element, and self.nentries
# positions a cursor after the last element.
#
# We assume that the begin cursor must be positioned over
# a value. If not, we assume it raises an error.
for begin in [None, 0, 10]:
for end in [None, self.nentries - 1, self.nentries - 10]:
self.truncateRangeAndCheck(self.table_name1, begin, end)
self.session.drop('table:' + self.table_name1, None)
self.truncateRangeAndCheck(self.table_name1, 10, 10)
self.session.drop('table:' + self.table_name1, None)
def test_sync(self):
self.populate(self.table_name1)
origmtime = os.path.getmtime(self.table_name1 + ".wt")
time.sleep(2)
self.session.sync('table:' + self.table_name1, None)
newmtime = os.path.getmtime(self.table_name1 + ".wt")
self.assertGreater(newmtime, origmtime)
self.checkContents(self.table_name1)
if __name__ == '__main__':
wttest.run()
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