#!/usr/bin/env python3
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import unittest

import thread_cert

LEADER = 1
ED = 2


class Cert_6_5_2_ChildResetReattach(thread_cert.TestCase):
    TOPOLOGY = {
        LEADER: {
            'mode': 'rsdn',
            'panid': 0xface,
            'whitelist': [ED]
        },
        ED: {
            'is_mtd': True,
            'mode': 'rsn',
            'panid': 0xface,
            'whitelist': [LEADER]
        },
    }

    def _setUpEd(self):
        self.nodes[ED].add_whitelist(self.nodes[LEADER].get_addr64())
        self.nodes[ED].enable_whitelist()

    def test(self):
        self.nodes[LEADER].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')

        self.nodes[ED].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ED].get_state(), 'child')

        self.nodes[LEADER].remove_whitelist(self.nodes[ED].get_addr64())
        self.nodes[ED].remove_whitelist(self.nodes[LEADER].get_addr64())

        self.nodes[ED].reset()
        self._setUpEd()
        self.simulator.go(5)
        self.nodes[ED].start()

        self.simulator.go(5)
        self.nodes[LEADER].add_whitelist(self.nodes[ED].get_addr64())
        self.simulator.go(5)
        self.assertEqual(self.nodes[ED].get_state(), 'child')

        addrs = self.nodes[ED].get_addrs()
        for addr in addrs:
            if addr[0:4] == 'fe80':
                self.assertTrue(self.nodes[LEADER].ping(addr))


if __name__ == '__main__':
    unittest.main()