Method test_ioctl

Lib/test/test_ioctl.py:30–37

(self)

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))
        with open("/dev/tty", "rb") as tty:
            r = fcntl.ioctl(tty, termios.TIOCGPGRP, "    ")
            rpgrp = struct.unpack("i", r)[0]
            self.assertIn(rpgrp, ids)

    def _check_ioctl_mutate_len(self, nbytes=None):
        buf = array.array('i')