| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2020, The OpenThread Authors. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # 1. Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # 2. Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # 3. Neither the name of the copyright holder nor the |
| # names of its contributors may be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| """This test case verifies Thread 1.2 enhanced frame pending feature. |
| |
| Topology |
| |
| Leader ----- SED_1 |
| |
| 1. Set up topology a Leader and a SED. |
| 2. SED pings leader so a data poll is just sent. |
| 3. Leader sends a UDP packet to SED to put a pending frame in queue. |
| 4. Wait for half polling period, verify no packet received by SED. |
| 5. SED sends a UDP packet to Leader to solicit an ACK with frame pending set. |
| * Verify Leader receives a UDP packet |
| * Verify SED sends a data poll |
| * Verify SED receives a UDP packet |
| """ |
| |
| import unittest |
| import pexpect |
| |
| import thread_cert |
| import common |
| |
| LEADER = 1 |
| SED_1 = 2 |
| |
| CHILD_TIMEOUT = 30 |
| UDP_BYTES_COUNT = 73 |
| |
| DEFAULT_POLL_PERIOD = CHILD_TIMEOUT - 4 |
| """The default poll period calculated from child timeout.""" |
| |
| |
| class SED_EnhancedFramePending(thread_cert.TestCase): |
| TOPOLOGY = { |
| LEADER: { |
| 'version': '1.2' |
| }, |
| SED_1: { |
| 'mode': '-', |
| 'version': '1.2', |
| }, |
| } |
| |
| def test(self): |
| self.nodes[SED_1].set_timeout(CHILD_TIMEOUT) |
| |
| # 1 - Set up topology |
| self.nodes[LEADER].start() |
| self.simulator.go(5) |
| self.assertEqual(self.nodes[LEADER].get_state(), 'leader') |
| |
| self.nodes[SED_1].start() |
| self.simulator.go(7) |
| self.assertEqual(self.nodes[SED_1].get_state(), 'child') |
| |
| self.nodes[LEADER].udp_start('::', common.UDP_TEST_PORT) |
| self.nodes[SED_1].udp_start('::', common.UDP_TEST_PORT) |
| |
| # 2 - Ping Leader |
| self.assertTrue(self.nodes[SED_1].ping(self.nodes[LEADER].get_rloc(), timeout=CHILD_TIMEOUT)) |
| |
| self.flush_all() |
| |
| # 3 - Send to SED |
| self.nodes[LEADER].udp_send(UDP_BYTES_COUNT, self.nodes[SED_1].get_rloc(), common.UDP_TEST_PORT) |
| |
| # 4 - Wait for half polling period |
| self.simulator.go(DEFAULT_POLL_PERIOD // 2) |
| with self.assertRaises(pexpect.TIMEOUT): |
| self.nodes[SED_1].udp_check_rx(UDP_BYTES_COUNT) |
| |
| # 5 - Send to Leader |
| self.nodes[SED_1].udp_send(UDP_BYTES_COUNT, self.nodes[LEADER].get_rloc(), common.UDP_TEST_PORT) |
| self.simulator.go(1) |
| self.nodes[LEADER].udp_check_rx(UDP_BYTES_COUNT) |
| sed_messages = self.simulator.get_messages_sent_by(SED_1) |
| self.assertNotEqual(sed_messages.next_data_poll(), None) |
| self.nodes[SED_1].udp_check_rx(UDP_BYTES_COUNT) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |