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author | Raymond Hettinger <python@rcn.com> | 2003-10-29 06:54:43 (GMT) |
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committer | Raymond Hettinger <python@rcn.com> | 2003-10-29 06:54:43 (GMT) |
commit | 0a9b9da0c39eb74075cc93f7d7bd3b5dbcc25320 (patch) | |
tree | 9f383ec9b1ddc0e5bc09d25cd502aaac2b2432f8 /Lib/test | |
parent | c43a7e7c370215518ea110f4d98493935bd1c2b8 (diff) | |
download | cpython-0a9b9da0c39eb74075cc93f7d7bd3b5dbcc25320.zip cpython-0a9b9da0c39eb74075cc93f7d7bd3b5dbcc25320.tar.gz cpython-0a9b9da0c39eb74075cc93f7d7bd3b5dbcc25320.tar.bz2 |
Add list.sorted() classmethod.
Diffstat (limited to 'Lib/test')
-rw-r--r-- | Lib/test/test_sort.py | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/Lib/test/test_sort.py b/Lib/test/test_sort.py index ca6fc801..1c10230 100644 --- a/Lib/test/test_sort.py +++ b/Lib/test/test_sort.py @@ -1,5 +1,7 @@ from test.test_support import verbose import random +from UserList import UserList +from sets import Set nerrors = 0 @@ -190,6 +192,7 @@ class TestDecorateSortUndecorate(unittest.TestCase): random.shuffle(data) data.sort(reverse=True) self.assertEqual(data, range(99,-1,-1)) + self.assertRaises(TypeError, data.sort, "wrong type") def test_reverse_stability(self): data = [(random.randrange(100), i) for i in xrange(200)] @@ -201,11 +204,66 @@ class TestDecorateSortUndecorate(unittest.TestCase): copy2.sort(key=lambda x: x[0], reverse=True) self.assertEqual(data, copy2) +class TestSorted(unittest.TestCase): + + def test_basic(self): + data = range(100) + copy = data[:] + random.shuffle(copy) + self.assertEqual(data, list.sorted(copy)) + self.assertNotEqual(data, copy) + + data.reverse() + random.shuffle(copy) + self.assertEqual(data, list.sorted(copy, cmp=lambda x, y: cmp(y,x))) + self.assertNotEqual(data, copy) + random.shuffle(copy) + self.assertEqual(data, list.sorted(copy, key=lambda x: -x)) + self.assertNotEqual(data, copy) + random.shuffle(copy) + self.assertEqual(data, list.sorted(copy, reverse=1)) + self.assertNotEqual(data, copy) + + def test_inputtypes(self): + s = 'abracadabra' + for T in [unicode, list, tuple]: + self.assertEqual(list.sorted(s), list.sorted(T(s))) + + s = ''.join(dict.fromkeys(s).keys()) # unique letters only + for T in [unicode, Set, list, tuple, dict.fromkeys]: + self.assertEqual(list.sorted(s), list.sorted(T(s))) + + def test_baddecorator(self): + data = 'The quick Brown fox Jumped over The lazy Dog'.split() + self.assertRaises(TypeError, list.sorted, data, None, lambda x,y: 0) + + def classmethods(self): + s = "hello world" + a = list.sorted(s) + b = UserList.sorted(s) + c = [].sorted(s) + d = UserList().sorted(s) + class Mylist(list): + def __new__(cls): + return UserList() + e = MyList.sorted(s) + f = MyList().sorted(s) + class Myuserlist(UserList): + def __new__(cls): + return [] + g = MyList.sorted(s) + h = MyList().sorted(s) + self.assert_(a == b == c == d == e == f == g == h) + self.assert_(b.__class__ == d.__class__ == UserList) + self.assert_(e.__class__ == f.__class__ == MyList) + self.assert_(g.__class__ == h.__class__ == Myuserlist) + #============================================================================== def test_main(verbose=None): test_classes = ( TestDecorateSortUndecorate, + TestSorted, TestBugs, ) |