143 lines
4.9 KiB
Python
Executable File
143 lines
4.9 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2020, 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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#
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import unittest
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import pexpect
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import config
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import thread_cert
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LEADER = 1
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ROUTER = 2
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class TestCoapObserve(thread_cert.TestCase):
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"""
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Test suite for CoAP Observations (RFC7641).
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"""
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SUPPORT_NCP = False
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TOPOLOGY = {
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LEADER: {
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'mode': 'rdn',
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'allowlist': [ROUTER]
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},
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ROUTER: {
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'mode': 'rdn',
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'allowlist': [LEADER]
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},
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}
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def _do_notification_test(self, con):
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self.nodes[LEADER].start()
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self.simulator.go(config.LEADER_STARTUP_DELAY)
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self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
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self.nodes[ROUTER].start()
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self.simulator.go(config.ROUTER_STARTUP_DELAY)
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self.assertEqual(self.nodes[ROUTER].get_state(), 'router')
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mleid = self.nodes[LEADER].get_ip6_address(config.ADDRESS_TYPE.ML_EID)
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self.nodes[LEADER].coap_start()
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self.nodes[LEADER].coap_set_resource_path('test')
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self.nodes[LEADER].coap_set_content('Test123')
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self.nodes[ROUTER].coap_start()
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response = self.nodes[ROUTER].coap_observe(mleid, 'test', con=con)
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first_observe = response['observe']
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self.assertIsNotNone(first_observe)
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self.assertEqual(response['payload'], 'Test123')
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self.assertEqual(response['source'], mleid)
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# This should have been emitted already, so should return immediately
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self.nodes[LEADER].coap_wait_subscribe()
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# Now change the content on the leader and wait for it to show up
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# on the router. We will do this a few times with a short delay.
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for n in range(0, 5):
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content = 'msg%d' % n
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self.nodes[LEADER].coap_set_content(content)
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response = self.nodes[ROUTER].coap_wait_response()
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self.assertGreater(response['observe'], first_observe)
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self.assertEqual(response['payload'], content)
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self.assertEqual(response['source'], mleid)
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# Stop subscription
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self.nodes[ROUTER].coap_cancel()
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# We should see the response, but with no Observe option
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response = self.nodes[ROUTER].coap_wait_response()
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self.assertIsNone(response['observe'])
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# Content won't have changed.
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self.assertEqual(response['payload'], content)
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# Make another change, no notification should be sent
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self.nodes[LEADER].coap_set_content('LastNote')
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# This should time out!
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try:
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self.nodes[ROUTER].coap_wait_response()
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self.fail('Should not have received notification')
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except pexpect.exceptions.TIMEOUT:
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pass
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self.nodes[ROUTER].coap_stop()
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self.nodes[LEADER].coap_stop()
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def test_con(self):
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"""
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Test notification using CON messages.
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"""
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for trial in range(0, 3):
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try:
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self._do_notification_test(con=True)
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break
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except (AssertionError, pexpect.exceptions.TIMEOUT):
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continue
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def test_non(self):
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"""
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Test notification using NON messages.
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"""
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for trial in range(0, 3):
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try:
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self._do_notification_test(con=False)
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break
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except (AssertionError, pexpect.exceptions.TIMEOUT):
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continue
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if __name__ == '__main__':
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unittest.main()
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