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Some days, I think my comment of

Browse source 
/* this is harder to get right than you might think */

angered some God somewhere.  After noticing

    >>> range(5000000)[slice(96360, None, 439)]
    []

I found that my cute test for the slice being empty failed due to
overflow.  Fixed, and added simple test (not the above!).
This commit is contained in:
Michael W. Hudson 2002-11-05 15:28:51 +00:00
parent d7c14c6c9b
commit 173f11da5d
2 changed files with 15 additions and 6 deletions
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3
Lib/test/test_slice.py
View file

@ -1,6 +1,7 @@
# tests for slice objects; in particular the indices method.
from test.test_support import vereq
import sys
vereq(slice(None ).indices(10), (0, 10, 1))
vereq(slice(None, None, 2).indices(10), (0, 10, 2))
@ -11,3 +12,5 @@ vereq(slice(3, None, -2).indices(10), (3, -1, -2))
vereq(slice(-100, 100 ).indices(10), slice(None).indices(10))
vereq(slice(100, -100, -1).indices(10), slice(None, None, -1).indices(10))
vereq(slice(-100L, 100L, 2L).indices(10), (0, 10, 2))
vereq(range(10)[::sys.maxint - 1], [0])