41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
import logging
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from twisted.internet import defer
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from lbrynet.dht import constants
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from .dht_test_environment import TestKademliaBase
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log = logging.getLogger()
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class TestPeerExpiration(TestKademliaBase):
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network_size = 40
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@defer.inlineCallbacks
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def test_expire_stale_peers(self):
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removed_addresses = set()
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removed_nodes = []
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# stop 5 nodes
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for _ in range(5):
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n = self.nodes[0]
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removed_nodes.append(n)
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removed_addresses.add(n.externalIP)
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self.nodes.remove(n)
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yield self.run_reactor(1, [n.stop()])
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offline_addresses = self.get_routable_addresses().difference(self.get_online_addresses())
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self.assertSetEqual(offline_addresses, removed_addresses)
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get_nodes_with_stale_contacts = lambda: list(filter(lambda node: any(contact.address in offline_addresses
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for contact in node.contacts),
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self.nodes + self._seeds))
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self.assertRaises(AssertionError, self.verify_all_nodes_are_routable)
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self.assertGreater(len(get_nodes_with_stale_contacts()), 1)
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# run the network long enough for two failures to happen
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self.pump_clock(constants.checkRefreshInterval * 3)
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self.assertEqual(len(get_nodes_with_stale_contacts()), 0)
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self.verify_all_nodes_are_routable()
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self.verify_all_nodes_are_pingable()
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