tests/test-lock.py

32087:e1938d6051da

from __future__ import absolute_import

import copy
import os
import silenttestrunner
import tempfile
import types
import unittest

        self.assertRaises(error.LockInheritanceContractViolation, tryinherit)

        lock.release()

if __name__ == '__main__':
    silenttestrunner.main(__name__)

32088:0d892d820a51

from __future__ import absolute_import

import copy
import errno
import os
import silenttestrunner
import tempfile
import types
import unittest

        self.assertRaises(error.LockInheritanceContractViolation, tryinherit)

        lock.release()

    def testfrequentlockunlock(self):
        """This tests whether lock acquisition fails as expected, even if
        (1) lock can't be acquired (makelock fails by EEXIST), and
        (2) locker info can't be read in (readlock fails by ENOENT) while
        retrying 5 times.
        """

        d = tempfile.mkdtemp(dir=os.getcwd())
        state = teststate(self, d)

        def emulatefrequentlock(*args):
            raise OSError(errno.EEXIST, "File exists")
        def emulatefrequentunlock(*args):
            raise OSError(errno.ENOENT, "No such file or directory")

        state.vfs.makelock = emulatefrequentlock
        state.vfs.readlock = emulatefrequentunlock

        try:
            state.makelock(timeout=0)
            self.fail("unexpected lock acquisition")
        except error.LockHeld as why:
            self.assertTrue(why.errno == errno.ETIMEDOUT)
            self.assertTrue(why.locker == "")
            state.assertlockexists(False)

if __name__ == '__main__':
    silenttestrunner.main(__name__)