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[toranj] test case to verify child restoration after parent reset (#2935)
This commit adds a new test-case under `toranj`. The test covers the following situation: - A single parent node with three sleepy and two rx-on children. - Parent node is reset. - It is verified that all children are recovered and are present in the parent's child table after reset. - It is also verified that all children are restored on parent through "Child Update" exchange process and none of them get detached.
This commit is contained in:
Abtin Keshavarzian
committed by
Jonathan Hui
Jonathan Hui
parent
1c7f811b32
commit
68535657df
@@ -128,6 +128,7 @@ run test-012-multi-hop-traffic.py
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run test-013-off-mesh-route-traffic.py
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run test-014-ip6-address-add.py
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run test-016-neighbor-table.py
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run test-017-parent-reset-child-recovery.py
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run test-100-mcu-power-state.py
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run test-600-channel-manager-properties.py
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run test-601-channel-manager-channel-change.py
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@@ -65,7 +65,7 @@ wpan.Node.init_all_nodes()
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router.form('child-table')
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for child in children:
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child.join_node(router, node_type=wpan.JOIN_TYPE_SLEEPY_END_DEVICE)
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child.set(wpan.WPAN_POLL_INTERVAL, '300')
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child.set(wpan.WPAN_POLL_INTERVAL, '1000')
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#-----------------------------------------------------------------------------------------------------------------------
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# Test implementation
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@@ -91,20 +91,6 @@ for child in children:
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verify(entry.is_ffd() == False)
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# Reset router and ensure all children are restored.
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router.reset()
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start_time = time.time()
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wait_time = 5
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while time.time() - start_time < wait_time:
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time.sleep(0.25)
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child_table = wpan.parse_child_table_result(router.get(wpan.WPAN_THREAD_CHILD_TABLE))
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if (len(child_table) == len(children)):
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break
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else:
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print 'Took too long for node to recover after reset ({}>{} sec)'.format(time.time() - start_time, wait_time)
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exit(1)
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#-----------------------------------------------------------------------------------------------------------------------
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# Test finished
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@@ -0,0 +1,160 @@
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#!/usr/bin/env python
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#
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# Copyright (c) 2018, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import time
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import wpan
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from wpan import verify
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#-----------------------------------------------------------------------------------------------------------------------
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# Test description: Parent restoring children after reset
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#
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# This test covers the following:
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#
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# - A parent node with a given number sleepy and rx-on children.
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# - Parent node is reset
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# - It is verified that all children are recovered and are present in the parent's child table
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# - It is also verified that all children are restored on parent through "Child Update" exchange process and none of
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# them got detached and needed to attach back.
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#
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test_name = __file__[:-3] if __file__.endswith('.py') else __file__
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print '-' * 120
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print 'Starting \'{}\''.format(test_name)
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#-----------------------------------------------------------------------------------------------------------------------
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# Creating `wpan.Nodes` instances
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speedup = 2
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wpan.Node.set_time_speedup_factor(speedup)
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NUM_SLEEPY_CHILDREN = 3
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NUM_RX_ON_CHILDREN = 2
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NUM_CHILDREN = NUM_SLEEPY_CHILDREN + NUM_RX_ON_CHILDREN
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parent = wpan.Node()
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sleepy_children = []
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for num in range(NUM_SLEEPY_CHILDREN):
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sleepy_children.append(wpan.Node())
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rx_on_children = []
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for num in range(NUM_RX_ON_CHILDREN):
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rx_on_children.append(wpan.Node())
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all_children = sleepy_children + rx_on_children
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#-----------------------------------------------------------------------------------------------------------------------
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# Init all nodes
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wpan.Node.init_all_nodes()
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#-----------------------------------------------------------------------------------------------------------------------
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# Build network topology
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#
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parent.form("recovery")
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for child in sleepy_children:
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child.join_node(parent, wpan.JOIN_TYPE_SLEEPY_END_DEVICE)
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child.set(wpan.WPAN_POLL_INTERVAL, '4000')
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for child in rx_on_children:
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child.join_node(parent, wpan.JOIN_TYPE_END_DEVICE)
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#-----------------------------------------------------------------------------------------------------------------------
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# Test implementation
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# The test verifies that all children are recovered after the parent is reset.
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#
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# The `wpantund` statistics collector is used to determine if the children are
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# recovered through "Child Update Request/Response" exchange triggered by parent
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# after it was reset (child restoration process) or if they got detached and
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# went through full attach process again. The wpantund stat-collector "stat:ncp"
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# property keeps track of all NCP state changes on a device:
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#
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# Node.wpanctl('get -v stat:ncp'):
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# [
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# "NCP State History"
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# "-------------------------"
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# "00:00:03.220 ago -> associated"
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# "00:00:03.604 ago -> associating"
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# "00:00:06.027 ago -> offline"
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# ]
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#
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#
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# In the first case (child being restored through "Child Update" exchange) the
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# child should never be detached and its "stat:ncp" history should remain the
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# same. In the second case the child would get detached and we should
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# observe a wpantund state change "associated:no-parent" before it gets attached
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# again:
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#
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# Node.wpanctl('get -v stat:ncp'):
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# [
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# "NCP State History"
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# "-------------------------"
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# "00:00:01.160 ago -> associated"
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# "00:00:01.814 ago -> associated:no-parent"
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# "00:00:04.911 ago -> associated"
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# "00:00:05.298 ago -> associating"
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# "00:00:06.475 ago -> offline"
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# ]
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#
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def check_child_table():
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# Checks the child table includes the expected number of children.
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child_table = wpan.parse_list(parent.get(wpan.WPAN_THREAD_CHILD_TABLE))
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verify(len(child_table) == NUM_CHILDREN)
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# Verify that all children are present in the child table
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check_child_table()
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# Remember number of NCP state changes (using "stat:ncp" property) per child
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child_num_state_changes = []
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for child in all_children:
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child_num_state_changes.append(len(wpan.parse_list(child.get("stat:ncp"))))
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# Reset the parent
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parent.reset()
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def check_parent_is_associated():
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verify(parent.is_associated())
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wpan.verify_within(check_parent_is_associated, 5)
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# Verify that all the children are recovered and present in the parent's child table again (within 5 seconds).
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wpan.verify_within(check_child_table, 9)
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# Verify that number of state changes on all children stays as before (indicating they did not get detached).
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for i in range(len(all_children)):
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verify(child_num_state_changes[i] == len(wpan.parse_list(all_children[i].get("stat:ncp"))))
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#-----------------------------------------------------------------------------------------------------------------------
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# Test finished
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print '\'{}\' passed.'.format(test_name)
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