| # |
| # BitBake Tests for Copy-on-Write (cow.py) |
| # |
| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # Copyright 2006 Holger Freyther <freyther@handhelds.org> |
| # |
| |
| import unittest |
| |
| |
| 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.assertEqual(False, 'a' in a) |
| |
| a['a'] = 'a' |
| a['b'] = 'b' |
| self.assertEqual(True, 'a' in a) |
| self.assertEqual(True, 'b' in a) |
| self.assertEqual('a', a['a'] ) |
| self.assertEqual('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.assertEqual(False, 'c' in c) |
| self.assertEqual(30, c['a']) |
| self.assertEqual(10, b['a']) |
| |
| # test copy |
| b_2 = b.copy() |
| c_2 = c.copy() |
| |
| self.assertEqual(False, 'c' in c_2) |
| self.assertEqual(10, b_2['a']) |
| |
| b_2['d'] = 40 |
| self.assertEqual(False, 'd' in c_2) |
| self.assertEqual(True, 'd' in b_2) |
| self.assertEqual(40, b_2['d']) |
| self.assertEqual(False, 'd' in b) |
| self.assertEqual(False, 'd' in c) |
| |
| c_2['d'] = 30 |
| self.assertEqual(True, 'd' in c_2) |
| self.assertEqual(True, 'd' in b_2) |
| self.assertEqual(30, c_2['d']) |
| self.assertEqual(40, b_2['d']) |
| self.assertEqual(False, 'd' in b) |
| self.assertEqual(False, 'd' in c) |
| |
| # 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.assertEqual(4711, c_3['e']) |
| self.assertEqual(False, 'e' in c_2) |
| self.assertEqual(False, 'e' in b_3) |
| self.assertEqual(False, 'e' in b_3_2) |
| self.assertEqual(False, 'e' in b_2) |
| |
| b_3['e'] = 'viel' |
| self.assertEqual('viel', b_3['e']) |
| self.assertEqual(4711, c_3['e']) |
| self.assertEqual(False, 'e' in c_2) |
| self.assertEqual(True, 'e' in b_3) |
| self.assertEqual(False, 'e' in b_3_2) |
| self.assertEqual(False, 'e' in b_2) |
| |
| 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.assertEqual(1027, c['123']) |
| self.assertEqual(4711, c['other']) |
| self.assertEqual({'abc':10, 'bcd':20}, c['d']) |
| self.assertEqual(1027, copy['123']) |
| self.assertEqual(4711, copy['other']) |
| self.assertEqual({'abc':10, 'bcd':20}, copy['d']) |
| |
| # cow it now |
| copy['123'] = 1028 |
| copy['other'] = 4712 |
| copy['d']['abc'] = 20 |
| |
| |
| self.assertEqual(1027, c['123']) |
| self.assertEqual(4711, c['other']) |
| self.assertEqual({'abc':10, 'bcd':20}, c['d']) |
| self.assertEqual(1028, copy['123']) |
| self.assertEqual(4712, copy['other']) |
| self.assertEqual({'abc':20, 'bcd':20}, copy['d']) |