1#!/usr/bin/env python3 2# 3# Copyright (c) 2020, The OpenThread Authors. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 3. Neither the name of the copyright holder nor the 14# names of its contributors may be used to endorse or promote products 15# derived from this software without specific prior written permission. 16# 17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' 18# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 21# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27# POSSIBILITY OF SUCH DAMAGE. 28# 29"""This test case verifies Thread 1.2 enhanced frame pending feature. 30 31Topology 32 33 Leader ----- SED_1 34 351. Set up topology a Leader and a SED. 362. SED pings leader so a data poll is just sent. 373. Leader sends a UDP packet to SED to put a pending frame in queue. 384. Wait for half polling period, verify no packet received by SED. 395. SED sends a UDP packet to Leader to solicit an ACK with frame pending set. 40 * Verify Leader receives a UDP packet 41 * Verify SED sends a data poll 42 * Verify SED receives a UDP packet 43""" 44 45import unittest 46import pexpect 47 48import thread_cert 49import config 50import common 51 52LEADER = 1 53SED_1 = 2 54 55CHILD_TIMEOUT = 30 56UDP_BYTES_COUNT = 73 57 58DEFAULT_POLL_PERIOD = CHILD_TIMEOUT - 4 59"""The default poll period calculated from child timeout.""" 60 61 62class SED_EnhancedFramePending(thread_cert.TestCase): 63 TOPOLOGY = { 64 LEADER: { 65 'version': '1.2' 66 }, 67 SED_1: { 68 'mode': '-', 69 'version': '1.2', 70 }, 71 } 72 73 def test(self): 74 self.nodes[SED_1].set_timeout(CHILD_TIMEOUT) 75 76 # 1 - Set up topology 77 self.nodes[LEADER].start() 78 self.simulator.go(config.LEADER_STARTUP_DELAY) 79 self.assertEqual(self.nodes[LEADER].get_state(), 'leader') 80 81 self.nodes[SED_1].start() 82 self.simulator.go(7) 83 self.assertEqual(self.nodes[SED_1].get_state(), 'child') 84 85 self.nodes[LEADER].udp_start('::', common.UDP_TEST_PORT) 86 self.nodes[SED_1].udp_start('::', common.UDP_TEST_PORT) 87 88 # 2 - Ping Leader 89 self.assertTrue(self.nodes[SED_1].ping(self.nodes[LEADER].get_rloc(), timeout=CHILD_TIMEOUT)) 90 91 self.flush_all() 92 93 # 3 - Send to SED 94 self.nodes[LEADER].udp_send(UDP_BYTES_COUNT, self.nodes[SED_1].get_rloc(), common.UDP_TEST_PORT) 95 96 # 4 - Wait for half polling period 97 self.simulator.go(DEFAULT_POLL_PERIOD // 2) 98 with self.assertRaises(pexpect.TIMEOUT): 99 self.nodes[SED_1].udp_check_rx(UDP_BYTES_COUNT) 100 101 # 5 - Send to Leader 102 self.nodes[SED_1].udp_send(UDP_BYTES_COUNT, self.nodes[LEADER].get_rloc(), common.UDP_TEST_PORT) 103 self.simulator.go(1) 104 self.nodes[LEADER].udp_check_rx(UDP_BYTES_COUNT) 105 sed_messages = self.simulator.get_messages_sent_by(SED_1) 106 self.assertNotEqual(sed_messages.next_data_poll(), None) 107 self.nodes[SED_1].udp_check_rx(UDP_BYTES_COUNT) 108 109 110if __name__ == '__main__': 111 unittest.main() 112