test_selectors2.py 文件源码

def test_selector_error(self):
        s = self.make_selector()
        rd, wr = self.make_socketpair()
        s.register(rd, selectors2.EVENT_READ)

        def alarm_exception(*args):
            err = OSError()
            err.errno = errno.EACCES
            raise err

        self.set_alarm(SHORT_SELECT, alarm_exception)

        try:
            s.select(LONG_SELECT)
        except OSError as e:
            self.assertEqual(e.errno, errno.EACCES)
        except Exception as e:
            self.fail("Raised incorrect exception: " + str(e))
        else:
            self.fail("select() didn't raise OSError")

    # Test ensures that _syscall_wrapper properly raises the
    # exception that is raised from an interrupt handler.