71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
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import unittest
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from test.test_support import TestSkipped, run_unittest
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import os, struct
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try:
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import fcntl, termios
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except ImportError:
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raise TestSkipped("No fcntl or termios module")
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if not hasattr(termios,'TIOCGPGRP'):
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raise TestSkipped("termios module doesn't have TIOCGPGRP")
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try:
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tty = open("/dev/tty", "r")
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tty.close()
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except IOError:
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raise TestSkipped("Unable to open /dev/tty")
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try:
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import pty
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except ImportError:
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pty = None
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class IoctlTests(unittest.TestCase):
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def test_ioctl(self):
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# If this process has been put into the background, TIOCGPGRP returns
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# the session ID instead of the process group id.
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ids = (os.getpgrp(), os.getsid(0))
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tty = open("/dev/tty", "r")
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r = fcntl.ioctl(tty, termios.TIOCGPGRP, " ")
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rpgrp = struct.unpack("i", r)[0]
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self.assert_(rpgrp in ids, "%s not in %s" % (rpgrp, ids))
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def test_ioctl_mutate(self):
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import array
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buf = array.array('i', [0])
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ids = (os.getpgrp(), os.getsid(0))
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tty = open("/dev/tty", "r")
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r = fcntl.ioctl(tty, termios.TIOCGPGRP, buf, 1)
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rpgrp = buf[0]
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self.assertEquals(r, 0)
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self.assert_(rpgrp in ids, "%s not in %s" % (rpgrp, ids))
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def test_ioctl_signed_unsigned_code_param(self):
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if not pty:
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raise TestSkipped('pty module required')
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mfd, sfd = pty.openpty()
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try:
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if termios.TIOCSWINSZ < 0:
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set_winsz_opcode_maybe_neg = termios.TIOCSWINSZ
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set_winsz_opcode_pos = termios.TIOCSWINSZ & 0xffffffffL
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else:
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set_winsz_opcode_pos = termios.TIOCSWINSZ
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set_winsz_opcode_maybe_neg, = struct.unpack("i",
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struct.pack("I", termios.TIOCSWINSZ))
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# We're just testing that these calls do not raise exceptions.
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saved_winsz = fcntl.ioctl(mfd, termios.TIOCGWINSZ, "\0"*8)
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our_winsz = struct.pack("HHHH",80,25,0,0)
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# test both with a positive and potentially negative ioctl code
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new_winsz = fcntl.ioctl(mfd, set_winsz_opcode_pos, our_winsz)
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new_winsz = fcntl.ioctl(mfd, set_winsz_opcode_maybe_neg, our_winsz)
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fcntl.ioctl(mfd, set_winsz_opcode_maybe_neg, saved_winsz)
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finally:
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os.close(mfd)
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os.close(sfd)
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def test_main():
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run_unittest(IoctlTests)
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if __name__ == "__main__":
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test_main()
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