mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-30 13:38:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Add method to OrderedDict for repositioning keys to the ends.

Browse source
This commit is contained in:
Raymond Hettinger 2010-09-06 21:26:09 +00:00
parent 7b2a7710ef
commit f45abc97bf
5 changed files with 51 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Lib/test/test_collections.py
View file

@ -973,7 +973,19 @@ class TestOrderedDict(unittest.TestCase):
od['a'] = 1
self.assertEqual(list(od.items()), [('b', 2), ('a', 1)])
def test_move_to_end(self):
od = OrderedDict.fromkeys('abcde')
self.assertEqual(list(od), list('abcde'))
od.move_to_end('c')
self.assertEqual(list(od), list('abdec'))
od.move_to_end('c', 0)
self.assertEqual(list(od), list('cabde'))
od.move_to_end('c', 0)
self.assertEqual(list(od), list('cabde'))
od.move_to_end('e')
self.assertEqual(list(od), list('cabde'))
with self.assertRaises(KeyError):
od.move_to_end('x')
class GeneralMappingTests(mapping_tests.BasicTestMappingProtocol):
type2test = OrderedDict