cpython/Lib/test/test_ioctl.py
Benjamin Peterson 2b7411df5c Merged revisions 63542-63544,63546,63553,63563-63564,63567,63569,63576 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r63542 | mark.dickinson | 2008-05-22 20:35:30 -0500 (Thu, 22 May 2008) | 5 lines

  Issue #2819: Add math.sum, a function that sums a sequence of floats
  efficiently but with no intermediate loss of precision.  Based on
  Raymond Hettinger's ASPN recipe.  Thanks Jean Brouwers for the patch.
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  r63543 | mark.dickinson | 2008-05-22 21:36:48 -0500 (Thu, 22 May 2008) | 2 lines

  Add tests for math.sum (Issue #2819)
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  r63544 | mark.dickinson | 2008-05-22 22:30:01 -0500 (Thu, 22 May 2008) | 2 lines

  Better error reporting in test_math.py
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  r63546 | raymond.hettinger | 2008-05-22 23:32:43 -0500 (Thu, 22 May 2008) | 1 line

  Tweak the comments and formatting.
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  r63553 | mark.dickinson | 2008-05-23 07:07:36 -0500 (Fri, 23 May 2008) | 3 lines

  Skip math.sum tests on non IEEE 754 platforms, and on IEEE 754 platforms
  that exhibit the problem described in issue #2937.
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  r63563 | martin.v.loewis | 2008-05-23 10:18:28 -0500 (Fri, 23 May 2008) | 3 lines

  Issue #1390: Raise ValueError in toxml when an invalid comment would
  otherwise be produced.
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  r63564 | raymond.hettinger | 2008-05-23 12:21:44 -0500 (Fri, 23 May 2008) | 1 line

  Issue 2909: show how to name unpacked fields.
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  r63567 | raymond.hettinger | 2008-05-23 12:34:34 -0500 (Fri, 23 May 2008) | 1 line

  Fix typo
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  r63569 | martin.v.loewis | 2008-05-23 14:33:13 -0500 (Fri, 23 May 2008) | 3 lines

  Mention that the leaking of variables from list comprehensions
  is fixed in 3.0.
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  r63576 | martin.v.loewis | 2008-05-24 04:36:45 -0500 (Sat, 24 May 2008) | 3 lines

  Don't try to get the window size if it was never set before.
  Fixes the test failure on Solaris.
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2008-05-26 17:36:47 +00:00

67 lines
2.2 KiB
Python

import unittest
from test.support import TestSkipped, run_unittest
import os, struct
try:
import fcntl, termios
except ImportError:
raise TestSkipped("No fcntl or termios module")
if not hasattr(termios,'TIOCGPGRP'):
raise TestSkipped("termios module doesn't have TIOCGPGRP")
try:
tty = open("/dev/tty", "r")
tty.close()
except IOError:
raise TestSkipped("Unable to open /dev/tty")
try:
import pty
except ImportError:
pty = None
class IoctlTests(unittest.TestCase):
def test_ioctl(self):
# If this process has been put into the background, TIOCGPGRP returns
# the session ID instead of the process group id.
ids = (os.getpgrp(), os.getsid(0))
tty = open("/dev/tty", "r")
r = fcntl.ioctl(tty, termios.TIOCGPGRP, " ")
rpgrp = struct.unpack("i", r)[0]
self.assert_(rpgrp in ids, "%s not in %s" % (rpgrp, ids))
def test_ioctl_mutate(self):
import array
buf = array.array('i', [0])
ids = (os.getpgrp(), os.getsid(0))
tty = open("/dev/tty", "r")
r = fcntl.ioctl(tty, termios.TIOCGPGRP, buf, 1)
rpgrp = buf[0]
self.assertEquals(r, 0)
self.assert_(rpgrp in ids, "%s not in %s" % (rpgrp, ids))
def test_ioctl_signed_unsigned_code_param(self):
if not pty:
raise TestSkipped('pty module required')
mfd, sfd = pty.openpty()
try:
if termios.TIOCSWINSZ < 0:
set_winsz_opcode_maybe_neg = termios.TIOCSWINSZ
set_winsz_opcode_pos = termios.TIOCSWINSZ & 0xffffffff
else:
set_winsz_opcode_pos = termios.TIOCSWINSZ
set_winsz_opcode_maybe_neg, = struct.unpack("i",
struct.pack("I", termios.TIOCSWINSZ))
our_winsz = struct.pack("HHHH",80,25,0,0)
# test both with a positive and potentially negative ioctl code
new_winsz = fcntl.ioctl(mfd, set_winsz_opcode_pos, our_winsz)
new_winsz = fcntl.ioctl(mfd, set_winsz_opcode_maybe_neg, our_winsz)
finally:
os.close(mfd)
os.close(sfd)
def test_main():
run_unittest(IoctlTests)
if __name__ == "__main__":
test_main()