import os import unittest from test.support.import_helper import import_module termios = import_module('termios') tty = import_module('tty') @unittest.skipUnless(hasattr(os, 'openpty'), "need os.openpty()") class TestTty(unittest.TestCase): def setUp(self): master_fd, self.fd = os.openpty() self.addCleanup(os.close, master_fd) self.stream = self.enterContext(open(self.fd, 'wb', buffering=0)) self.fd = self.stream.fileno() self.mode = termios.tcgetattr(self.fd) self.addCleanup(termios.tcsetattr, self.fd, termios.TCSANOW, self.mode) self.addCleanup(termios.tcsetattr, self.fd, termios.TCSAFLUSH, self.mode) def check_cbreak(self, mode): self.assertEqual(mode[0] & termios.ICRNL, 0) self.assertEqual(mode[3] & termios.ECHO, 0) self.assertEqual(mode[3] & termios.ICANON, 0) self.assertEqual(mode[6][termios.VMIN], 1) self.assertEqual(mode[6][termios.VTIME], 0) def check_raw(self, mode): self.check_cbreak(mode) self.assertEqual(mode[0] & termios.ISTRIP, 0) self.assertEqual(mode[0] & termios.ICRNL, 0) self.assertEqual(mode[1] & termios.OPOST, 0) self.assertEqual(mode[2] & termios.PARENB, termios.CS8 & termios.PARENB) self.assertEqual(mode[2] & termios.CSIZE, termios.CS8 & termios.CSIZE) self.assertEqual(mode[2] & termios.CS8, termios.CS8) self.assertEqual(mode[3] & termios.ECHO, 0) self.assertEqual(mode[3] & termios.ICANON, 0) self.assertEqual(mode[3] & termios.ISIG, 0) self.assertEqual(mode[6][termios.VMIN], 1) self.assertEqual(mode[6][termios.VTIME], 0) def test_cfmakeraw(self): mode = termios.tcgetattr(self.fd) self.assertEqual(mode, self.mode) tty.cfmakeraw(mode) self.check_raw(mode) self.assertEqual(mode[4], self.mode[4]) self.assertEqual(mode[5], self.mode[5]) def test_cfmakecbreak(self): mode = termios.tcgetattr(self.fd) self.assertEqual(mode, self.mode) tty.cfmakecbreak(mode) self.check_cbreak(mode) self.assertEqual(mode[1], self.mode[1]) self.assertEqual(mode[2], self.mode[2]) self.assertEqual(mode[4], self.mode[4]) self.assertEqual(mode[5], self.mode[5]) def test_setraw(self): mode0 = termios.tcgetattr(self.fd) mode1 = tty.setraw(self.fd) self.assertEqual(mode1, mode0) mode2 = termios.tcgetattr(self.fd) self.check_raw(mode2) mode3 = tty.setraw(self.fd, termios.TCSANOW) self.assertEqual(mode3, mode2) tty.setraw(self.stream) tty.setraw(fd=self.fd, when=termios.TCSANOW) def test_setcbreak(self): mode0 = termios.tcgetattr(self.fd) mode1 = tty.setcbreak(self.fd) self.assertEqual(mode1, mode0) mode2 = termios.tcgetattr(self.fd) self.check_cbreak(mode2) mode3 = tty.setcbreak(self.fd, termios.TCSANOW) self.assertEqual(mode3, mode2) tty.setcbreak(self.stream) tty.setcbreak(fd=self.fd, when=termios.TCSANOW) if __name__ == '__main__': unittest.main()