| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2018, 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 time |
| import wpan |
| from wpan import verify |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Test description: verifies `ChannelManager` channel change process |
| |
| test_name = __file__[:-3] if __file__.endswith('.py') else __file__ |
| print('-' * 120) |
| print('Starting \'{}\''.format(test_name)) |
| |
| |
| def verify_channel(nodes, new_channel, wait_time=20): |
| """ |
| This function checks the channel on a given list of `nodes` and verifies that all nodes |
| switch to a given `new_channel` (as int) within certain `wait_time` (int and in seconds) |
| """ |
| start_time = time.time() |
| |
| while not all( |
| [ |
| (new_channel == int(node.get(wpan.WPAN_CHANNEL), 0)) |
| for node in nodes |
| ] |
| ): |
| if time.time() - start_time > wait_time: |
| print( |
| 'Took too long to switch to channel {} ({}>{} sec)'.format( |
| new_channel, time.time() - start_time, wait_time |
| ) |
| ) |
| exit(1) |
| time.sleep(0.1) |
| |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Creating `wpan.Nodes` instances |
| |
| speedup = 4 |
| wpan.Node.set_time_speedup_factor(speedup) |
| |
| r1 = wpan.Node() |
| r2 = wpan.Node() |
| r3 = wpan.Node() |
| sc1 = wpan.Node() |
| ec1 = wpan.Node() |
| sc2 = wpan.Node() |
| sc3 = wpan.Node() |
| |
| all_nodes = [r1, r2, r3, sc1, ec1, sc2, sc3] |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Init all nodes |
| |
| wpan.Node.init_all_nodes() |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Build network topology |
| |
| for node in all_nodes: |
| node.set(wpan.WPAN_OT_LOG_LEVEL, '0') |
| |
| r1.whitelist_node(r2) |
| r2.whitelist_node(r1) |
| r1.whitelist_node(r3) |
| r3.whitelist_node(r1) |
| |
| r1.whitelist_node(sc1) |
| r1.whitelist_node(ec1) |
| r2.whitelist_node(sc2) |
| r3.whitelist_node(sc3) |
| |
| r1.form('channel-manager', channel=12) |
| r2.join_node(r1, node_type=wpan.JOIN_TYPE_ROUTER) |
| r3.join_node(r1, node_type=wpan.JOIN_TYPE_ROUTER) |
| sc1.join_node(r1, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE) |
| ec1.join_node(r1, node_type=wpan.JOIN_TYPE_END_DEVICE) |
| sc2.join_node(r2, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE) |
| sc3.join_node(r3, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE) |
| |
| sc1.set(wpan.WPAN_POLL_INTERVAL, '500') |
| sc2.set(wpan.WPAN_POLL_INTERVAL, '500') |
| sc3.set(wpan.WPAN_POLL_INTERVAL, '500') |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Test implementation |
| |
| # The channel manager delay is set from "openthread-core-toranj-config.h". |
| # Verify that it is 2 seconds. |
| |
| verify(int(r1.get(wpan.WPAN_CHANNEL_MANAGER_DELAY), 0) == 2) |
| |
| verify_channel(all_nodes, 12) |
| |
| # Request a channel change to channel 13 from router r1 |
| |
| r1.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '13') |
| verify(int(r1.get(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL), 0) == 13) |
| verify_channel(all_nodes, 13) |
| |
| # Request same channel change on multiple routers at the same time |
| |
| r1.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '14') |
| r2.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '14') |
| r3.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '14') |
| verify_channel(all_nodes, 14) |
| |
| # Request different channel changes from same router (router r1). |
| |
| r1.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '15') |
| verify_channel(all_nodes, 14) |
| r1.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '16') |
| verify_channel(all_nodes, 16) |
| |
| # Request different channels from two routers (r1 and r2) |
| |
| r1.set( |
| wpan.WPAN_CHANNEL_MANAGER_DELAY, '20' |
| ) # increase the time to ensure r1 change is in process |
| r1.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '17') |
| time.sleep(10.5 / speedup) |
| verify_channel(all_nodes, 16) |
| r2.set(wpan.WPAN_CHANNEL_MANAGER_NEW_CHANNEL, '18') |
| verify_channel(all_nodes, 18) |
| |
| # ----------------------------------------------------------------------------------------------------------------------- |
| # Test finished |
| |
| wpan.Node.finalize_all_nodes() |
| |
| print('\'{}\' passed.'.format(test_name)) |