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#!/usr/bin/env python
#
# Copyright (c) 2008-2012 WiredTiger, Inc.
# All rights reserved.
#
# See the file LICENSE for redistribution information.
#
# test_base04.py
# Test that tables are reconciled correctly when they are empty.
#
import unittest
import wiredtiger
from wiredtiger import WT_NOTFOUND
import wttest
class test_base04(wttest.WiredTigerTestCase):
'''Test various tree types becoming empty'''
tablename = 'table:test_base04'
def __init__(self, *args, **kwargs):
wttest.WiredTigerTestCase.__init__(self, *args, **kwargs)
self.reconcile = False
def reopen(self):
self.conn.close()
self.conn = wiredtiger.wiredtiger_open('.', None)
self.session = self.conn.open_session()
def create_table(self):
self.pr('create table')
self.session.create(self.tablename, 'key_format=S,value_format=S')
def drop_table(self):
self.pr('drop table')
self.session.drop(self.tablename, None)
def cursor(self):
self.pr('open cursor')
return self.session.open_cursor(self.tablename, None, None)
def check_exists(self, key, expected):
cursor = self.cursor()
cursor.set_key(key)
self.pr('search')
self.assertEqual(cursor.search(), expected)
self.pr('closing cursor')
cursor.close(None)
def insert(self, key, value):
self.pr('insert')
cursor = self.cursor()
cursor.set_key(key);
cursor.set_value(value)
cursor.insert()
cursor.close(None)
if self.reconcile:
self.reopen()
def remove(self, key):
self.pr('remove')
cursor = self.cursor()
cursor.set_key(key);
cursor.remove()
cursor.close(None)
if self.reconcile:
self.reopen()
def test_empty(self):
'''Create a table, look for a nonexistent key'''
self.create_table()
self.check_exists('somekey', WT_NOTFOUND)
self.drop_table()
def test_insert(self):
'''Create a table, add a key, get it back'''
for self.reconcile in (False, True):
self.create_table()
self.insert('key1', 'value1')
self.check_exists('key1', 0)
self.drop_table()
def test_insert_delete(self):
'''Create a table, add a key, get it back'''
for reconcile in (False, True):
self.create_table()
self.insert('key1', 'value1')
self.check_exists('key1', 0)
self.remove('key1')
self.check_exists('key1', WT_NOTFOUND)
self.drop_table()
if __name__ == '__main__':
wttest.run()
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