test_asyncore.py 文件源码

def test_readwrite(self):
        # Check that correct methods are called by readwrite()

        attributes = ('read', 'expt', 'write', 'closed', 'error_handled')

        expected = (
            (select.POLLIN, 'read'),
            (select.POLLPRI, 'expt'),
            (select.POLLOUT, 'write'),
            (select.POLLERR, 'closed'),
            (select.POLLHUP, 'closed'),
            (select.POLLNVAL, 'closed'),
            )

        class testobj:
            def __init__(self):
                self.read = False
                self.write = False
                self.closed = False
                self.expt = False
                self.error_handled = False

            def handle_read_event(self):
                self.read = True

            def handle_write_event(self):
                self.write = True

            def handle_close(self):
                self.closed = True

            def handle_expt_event(self):
                self.expt = True

            def handle_error(self):
                self.error_handled = True

        for flag, expectedattr in expected:
            tobj = testobj()
            self.assertEqual(getattr(tobj, expectedattr), False)
            asyncore.readwrite(tobj, flag)

            # Only the attribute modified by the routine we expect to be
            # called should be True.
            for attr in attributes:
                self.assertEqual(getattr(tobj, attr), attr==expectedattr)

            # check that ExitNow exceptions in the object handler method
            # bubbles all the way up through asyncore readwrite call
            tr1 = exitingdummy()
            self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, flag)

            # check that an exception other than ExitNow in the object handler
            # method causes the handle_error method to get called
            tr2 = crashingdummy()
            self.assertEqual(tr2.error_handled, False)
            asyncore.readwrite(tr2, flag)
            self.assertEqual(tr2.error_handled, True)