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Fix the bug described in

Browse source 
http://mail.python.org/pipermail/python-dev/2002-June/025461.html

with test cases.

Also includes extended slice support for arrays, which I thought I'd
already checked in but obviously not.
This commit is contained in:
Michael W. Hudson 2002-06-19 15:44:15 +00:00
parent fe0ca4a0f5
commit 9c14badc5f
4 changed files with 233 additions and 7 deletions
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43
Lib/test/test_array.py
View file

@ -3,7 +3,8 @@
Roger E. Masse
"""
import array
from test_support import verbose, TESTFN, unlink, TestFailed, have_unicode
from test_support import verbose, TESTFN, unlink, TestFailed,\
have_unicode, vereq
def main():
testtype('c', 'c')
@ -312,6 +313,46 @@ def testtype(type, example):
a.reverse()
if a != array.array(type, [4, 3, 1]):
raise TestFailed, "array(%s) reverse-test" % `type`
# extended slicing
# subscription
a = array.array(type, [0,1,2,3,4])
vereq(a[::], a)
vereq(a[::2], array.array(type, [0,2,4]))
vereq(a[1::2], array.array(type, [1,3]))
vereq(a[::-1], array.array(type, [4,3,2,1,0]))
vereq(a[::-2], array.array(type, [4,2,0]))
vereq(a[3::-2], array.array(type, [3,1]))
vereq(a[-100:100:], a)
vereq(a[100:-100:-1], a[::-1])
vereq(a[-100L:100L:2L], array.array(type, [0,2,4]))
vereq(a[1000:2000:2], array.array(type, []))
vereq(a[-1000:-2000:-2], array.array(type, []))
# deletion
del a[::2]
vereq(a, array.array(type, [1,3]))
a = array.array(type, range(5))
del a[1::2]
vereq(a, array.array(type, [0,2,4]))
a = array.array(type, range(5))
del a[1::-2]
vereq(a, array.array(type, [0,2,3,4]))
# assignment
a = array.array(type, range(10))
a[::2] = array.array(type, [-1]*5)
vereq(a, array.array(type, [-1, 1, -1, 3, -1, 5, -1, 7, -1, 9]))
a = array.array(type, range(10))
a[::-4] = array.array(type, [10]*3)
vereq(a, array.array(type, [0, 10, 2, 3, 4, 10, 6, 7, 8 ,10]))
a = array.array(type, range(4))
a[::-1] = a
vereq(a, array.array(type, [3, 2, 1, 0]))
a = array.array(type, range(10))
b = a[:]
c = a[:]
ins = array.array(type, range(2))
a[2:3] = ins
b[slice(2,3)] = ins
c[2:3:] = ins
# test that overflow exceptions are raised as expected for assignment
# to array of specific integral types