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1#!/usr/bin/env python3
2#
3#  Copyright (c) 2022, 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
30import unittest
31
32import config
33import mle
34import network_layer
35import thread_cert
36
37LEADER = 1
38REED = 2
39
40RSSI_LOW = -95
41RSSI_HIGH = -45
42
43ROUTER_UPGRADE_DELAY = 150
44
45# Test Purpose and Description:
46# -----------------------------
47# The purpose of this test case is to show that a REED does not
48# upgrade to router if it does not have a neighbor with link margin
49# above threshold.
50#
51# Test Topology:
52# -------------
53# Leader
54#    |
55# REED
56#
57# DUT Types:
58# ----------
59#  Leader
60#  REED
61
62
63class TestRouterUpgrade(thread_cert.TestCase):
64    USE_MESSAGE_FACTORY = False
65
66    TOPOLOGY = {
67        LEADER: {
68            'name': 'LEADER',
69            'mode': 'rdn',
70            'allowlist': [REED]
71        },
72        REED: {
73            'name': 'REED',
74            'mode': 'rdn',
75            'allowlist': [LEADER]
76        },
77    }
78
79    def test(self):
80        self.nodes[LEADER].start()
81        self.simulator.go(config.LEADER_STARTUP_DELAY)
82        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
83
84        self.nodes[REED].add_allowlist(self.nodes[LEADER].get_addr64(), rssi=RSSI_LOW)
85        self.nodes[REED].enable_allowlist()
86
87        self.nodes[REED].start()
88        self.simulator.go(ROUTER_UPGRADE_DELAY)
89        self.assertEqual(self.nodes[REED].get_state(), 'child')
90
91        self.nodes[REED].add_allowlist(self.nodes[LEADER].get_addr64(), rssi=RSSI_HIGH)
92        self.nodes[REED].enable_allowlist()
93
94        self.simulator.go(ROUTER_UPGRADE_DELAY)
95        self.assertEqual(self.nodes[REED].get_state(), 'router')
96
97
98if __name__ == '__main__':
99    unittest.main()
100