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Issue #3004: Minor fix to slice.indices(). slice(-10).indices(9) now

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returns (0, 0, 1) instead of (0, -1, 1), and slice(None, 10, -1).indices(10)
returns (9, 9, -1) instead of (9, 10, -1).
This commit is contained in:
Mark Dickinson 2008-06-20 14:53:43 +00:00
parent 7b2e2df740
commit 1ec2fcd16e
3 changed files with 24 additions and 2 deletions
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14
Lib/test/test_slice.py
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@ -79,6 +79,20 @@ class SliceTest(unittest.TestCase):
self.assertEqual(slice(None, None, -1).indices(10), (9, -1, -1))
self.assertEqual(slice(None, None, -2).indices(10), (9, -1, -2))
self.assertEqual(slice(3, None, -2).indices(10), (3, -1, -2))
# issue 3004 tests
self.assertEqual(slice(None, -9).indices(10), (0, 1, 1))
self.assertEqual(slice(None, -10).indices(10), (0, 0, 1))
self.assertEqual(slice(None, -11).indices(10), (0, 0, 1))
self.assertEqual(slice(None, -10, -1).indices(10), (9, 0, -1))
self.assertEqual(slice(None, -11, -1).indices(10), (9, -1, -1))
self.assertEqual(slice(None, -12, -1).indices(10), (9, -1, -1))
self.assertEqual(slice(None, 9).indices(10), (0, 9, 1))
self.assertEqual(slice(None, 10).indices(10), (0, 10, 1))
self.assertEqual(slice(None, 11).indices(10), (0, 10, 1))
self.assertEqual(slice(None, 8, -1).indices(10), (9, 8, -1))
self.assertEqual(slice(None, 9, -1).indices(10), (9, 9, -1))
self.assertEqual(slice(None, 10, -1).indices(10), (9, 9, -1))
self.assertEqual(
slice(-100, 100 ).indices(10),
slice(None).indices(10)