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[nexus] migrate test_srp_ttl.py to nexus (#12960)

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This commit migrates the SRP TTL test from the thread-cert Python
framework to the Nexus C++ framework.

The new Nexus test `test_srp_ttl.cpp` covers all four TTL clamping
cases originally implemented in `test_srp_ttl.py`:
1. CLIENT_TTL < TTL_MIN < LEASE_MAX => Clamped to TTL_MIN.
2. TTL_MIN < CLIENT_TTL < TTL_MAX < LEASE_MAX => Used CLIENT_TTL.
3. TTL_MAX < LEASE_MAX < CLIENT_TTL => Clamped to TTL_MAX.
4. LEASE_MAX < TTL_MAX < CLIENT_TTL => Clamped to LEASE_MAX.

Nexus tests provide faster and more scalable network simulations
within a single process, improving CI efficiency.

The original Python script `tests/scripts/thread-cert/test_srp_ttl.py`
is removed as its functionality is now fully covered by Nexus.
This commit is contained in:
Jonathan Hui
2026-04-22 04:18:34 -05:00
committed by GitHub
parent 706e93f017
commit 8fbe09e2b5
3 changed files with 187 additions and 153 deletions
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tests/scripts/thread-cert/test_srp_ttl.py
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#!/usr/bin/env python3
#
# Copyright (c) 2022, 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
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
import ipaddress
import unittest
import command
import config
import thread_cert
# Test description:
# This test verifies the SRP server and client properly handle SRP host
# and service instance TTLs.
#
# Topology:
# LEADER (SRP server)
# |
# |
# ROUTER (SRP client)
#
SERVER = 1
CLIENT = 2
KEY_LEASE = 240 # Seconds
class SrpTtl(thread_cert.TestCase):
USE_MESSAGE_FACTORY = False
SUPPORT_NCP = False
TOPOLOGY = {
SERVER: {
'name': 'SRP_SERVER',
'mode': 'rdn',
},
CLIENT: {
'name': 'SRP_CLIENT',
'mode': 'rdn',
},
}
def test(self):
server = self.nodes[SERVER]
client = self.nodes[CLIENT]
#
# Start the server and client devices.
#
server.srp_server_set_enabled(True)
server.srp_server_set_lease_range(120, 240, KEY_LEASE, KEY_LEASE)
server.start()
self.simulator.go(config.LEADER_STARTUP_DELAY)
self.assertEqual(server.get_state(), 'leader')
self.simulator.go(5)
client.srp_server_set_enabled(False)
client.start()
self.simulator.go(config.ROUTER_STARTUP_DELAY)
self.assertEqual(client.get_state(), 'router')
self.simulator.go(15)
self.assertEqual(client.srp_client_get_auto_start_mode(), 'Enabled')
client.srp_client_set_host_name('my-host')
client.srp_client_set_host_address('2001::1')
client.srp_client_add_service('my-service', '_ipps._tcp', 12345)
self.simulator.go(2)
#
# CLIENT_TTL < TTL_MIN < LEASE_MAX ==> TTL_MIN
#
client.srp_client_set_ttl(100)
server.srp_server_set_ttl_range(120, 240)
server.srp_server_set_lease_range(120, 240, KEY_LEASE, KEY_LEASE)
self.simulator.go(KEY_LEASE)
self.check_ttl(120)
#
# TTL_MIN < CLIENT_TTL < TTL_MAX < LEASE_MAX ==> CLIENT_TTL
#
client.srp_client_set_ttl(100)
server.srp_server_set_ttl_range(60, 120)
server.srp_server_set_lease_range(120, 240, KEY_LEASE, KEY_LEASE)
self.simulator.go(KEY_LEASE)
self.check_ttl(100)
#
# TTL_MAX < LEASE_MAX < CLIENT_TTL ==> TTL_MAX
#
client.srp_client_set_ttl(240)
server.srp_server_set_ttl_range(60, 120)
server.srp_server_set_lease_range(120, 240, KEY_LEASE, KEY_LEASE)
self.simulator.go(KEY_LEASE)
self.check_ttl(120)
#
# LEASE_MAX < TTL_MAX < CLIENT_TTL ==> LEASE_MAX
#
client.srp_client_set_ttl(240)
server.srp_server_set_ttl_range(60, 120)
server.srp_server_set_lease_range(30, 60, KEY_LEASE, KEY_LEASE)
self.simulator.go(KEY_LEASE)
self.check_ttl(60)
def check_ttl(self, ttl):
"""Check that we have properly registered host and service instance.
"""
server = self.nodes[SERVER]
server_services = server.srp_server_get_services()
print(server_services)
self.assertEqual(len(server_services), 1)
server_service = server_services[0]
# Verify that the server accepted the SRP registration and stored
# the same service resources.
self.assertEqual(int(server_service['ttl']), ttl)
if __name__ == '__main__':
unittest.main()