'L{PIDFile.isRunning} returns true for a process that we are not allowed
to kill (errno=EPERM).'

@ifPlatformSupported
def test_isRunningNotAllowed(self):

    pidFile = PIDFile(DummyFilePath())
    pidFile._write(1337)
    def kill(pid, signal):
        raise OSError(errno.EPERM, 'Operation    not    permitted')
    self.patch(_pidfile, 'kill', kill)
    self.assertTrue(pidFile.isRunning())
