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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
# BitBake Tests for Copy-on-Write (cow.py)
#
# Copyright 2006 Holger Freyther <freyther@handhelds.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
import unittest
import os
class COWTestCase(unittest.TestCase):
"""
Test case for the COW module from mithro
"""
def testGetSet(self):
"""
Test and set
"""
from bb.COW import COWDictBase
a = COWDictBase.copy()
self.assertEquals(False, a.has_key('a'))
a['a'] = 'a'
a['b'] = 'b'
self.assertEquals(True, a.has_key('a'))
self.assertEquals(True, a.has_key('b'))
self.assertEquals('a', a['a'] )
self.assertEquals('b', a['b'] )
def testCopyCopy(self):
"""
Test the copy of copies
"""
from bb.COW import COWDictBase
# create two COW dict 'instances'
b = COWDictBase.copy()
c = COWDictBase.copy()
# assign some keys to one instance, some keys to another
b['a'] = 10
b['c'] = 20
c['a'] = 30
# test separation of the two instances
self.assertEquals(False, c.has_key('c'))
self.assertEquals(30, c['a'])
self.assertEquals(10, b['a'])
# test copy
b_2 = b.copy()
c_2 = c.copy()
self.assertEquals(False, c_2.has_key('c'))
self.assertEquals(10, b_2['a'])
b_2['d'] = 40
self.assertEquals(False, c_2.has_key('d'))
self.assertEquals(True, b_2.has_key('d'))
self.assertEquals(40, b_2['d'])
self.assertEquals(False, b.has_key('d'))
self.assertEquals(False, c.has_key('d'))
c_2['d'] = 30
self.assertEquals(True, c_2.has_key('d'))
self.assertEquals(True, b_2.has_key('d'))
self.assertEquals(30, c_2['d'])
self.assertEquals(40, b_2['d'])
self.assertEquals(False, b.has_key('d'))
self.assertEquals(False, c.has_key('d'))
# test copy of the copy
c_3 = c_2.copy()
b_3 = b_2.copy()
b_3_2 = b_2.copy()
c_3['e'] = 4711
self.assertEquals(4711, c_3['e'])
self.assertEquals(False, c_2.has_key('e'))
self.assertEquals(False, b_3.has_key('e'))
self.assertEquals(False, b_3_2.has_key('e'))
self.assertEquals(False, b_2.has_key('e'))
b_3['e'] = 'viel'
self.assertEquals('viel', b_3['e'])
self.assertEquals(4711, c_3['e'])
self.assertEquals(False, c_2.has_key('e'))
self.assertEquals(True, b_3.has_key('e'))
self.assertEquals(False, b_3_2.has_key('e'))
self.assertEquals(False, b_2.has_key('e'))
def testCow(self):
from bb.COW import COWDictBase
c = COWDictBase.copy()
c['123'] = 1027
c['other'] = 4711
c['d'] = { 'abc' : 10, 'bcd' : 20 }
copy = c.copy()
self.assertEquals(1027, c['123'])
self.assertEquals(4711, c['other'])
self.assertEquals({'abc':10, 'bcd':20}, c['d'])
self.assertEquals(1027, copy['123'])
self.assertEquals(4711, copy['other'])
self.assertEquals({'abc':10, 'bcd':20}, copy['d'])
# cow it now
copy['123'] = 1028
copy['other'] = 4712
copy['d']['abc'] = 20
self.assertEquals(1027, c['123'])
self.assertEquals(4711, c['other'])
self.assertEquals({'abc':10, 'bcd':20}, c['d'])
self.assertEquals(1028, copy['123'])
self.assertEquals(4712, copy['other'])
self.assertEquals({'abc':20, 'bcd':20}, copy['d'])
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