lib-python.2.7.test.test_openpty.py Maven / Gradle / Ivy

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# Test to see if openpty works. (But don't worry if it isn't available.)

import os, unittest
from test.test_support import run_unittest

if not hasattr(os, "openpty"):
    raise unittest.SkipTest, "No openpty() available."


class OpenptyTest(unittest.TestCase):
    def test(self):
        master, slave = os.openpty()
        if not os.isatty(slave):
            self.fail("Slave-end of pty is not a terminal.")

        os.write(slave, 'Ping!')
        self.assertEqual(os.read(master, 1024), 'Ping!')

def test_main():
    run_unittest(OpenptyTest)

if __name__ == '__main__':
    test_main()