zcashd/qa/rpc-tests/p2p_nu_peer_management.py

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2018-12-18 12:00:46 -08:00
#!/usr/bin/env python
# Copyright (c) 2018 The Zcash developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or https://www.opensource.org/licenses/mit-license.php .
2018-12-18 12:00:46 -08:00
import sys; assert sys.version_info < (3,), ur"This script does not run under Python 3. Please use Python 2.7.x."
from test_framework.mininode import (
NodeConn,
NodeConnCB,
NetworkThread,
msg_ping,
SPROUT_PROTO_VERSION,
OVERWINTER_PROTO_VERSION,
SAPLING_PROTO_VERSION,
)
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import initialize_chain_clean, start_nodes, \
p2p_port, assert_equal
import time
#
# In this test we connect Sprout, Overwinter, and Sapling mininodes to a Zcashd
# node which will activate Overwinter at block 10 and Sapling at block 15.
#
# We test:
# 1. the mininodes stay connected to Zcash with Sprout consensus rules
# 2. when Overwinter activates, the Sprout mininodes are dropped
# 3. new Overwinter and Sapling nodes can connect to Zcash
# 4. new Sprout nodes cannot connect to Zcash
# 5. when Sapling activates, the Overwinter mininodes are dropped
# 6. new Sapling nodes can connect to Zcash
# 7. new Sprout and Overwinter nodes cannot connect to Zcash
#
# This test *does not* verify that prior to each activation, the Zcashd
# node will prefer connections with NU-aware nodes, with an eviction process
# that prioritizes non-NU-aware connections.
#
class TestManager(NodeConnCB):
def __init__(self):
NodeConnCB.__init__(self)
self.create_callback_map()
def on_close(self, conn):
pass
def on_reject(self, conn, message):
conn.rejectMessage = message
class NUPeerManagementTest(BitcoinTestFramework):
def setup_chain(self):
print "Initializing test directory "+self.options.tmpdir
initialize_chain_clean(self.options.tmpdir, 1)
def setup_network(self):
self.nodes = start_nodes(1, self.options.tmpdir, extra_args=[[
'-nuparams=5ba81b19:10', # Overwinter
'-nuparams=76b809bb:15', # Sapling
'-debug',
'-whitelist=127.0.0.1',
]])
def run_test(self):
test = TestManager()
# Launch Sprout, Overwinter, and Sapling mininodes
nodes = []
for x in xrange(10):
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0],
test, "regtest", SPROUT_PROTO_VERSION))
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0],
test, "regtest", OVERWINTER_PROTO_VERSION))
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0],
test, "regtest", SAPLING_PROTO_VERSION))
# Start up network handling in another thread
NetworkThread().start()
# Sprout consensus rules apply at block height 9
self.nodes[0].generate(9)
assert_equal(9, self.nodes[0].getblockcount())
# Verify mininodes are still connected to zcashd node
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(10, versions.count(SPROUT_PROTO_VERSION))
assert_equal(10, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(10, versions.count(SAPLING_PROTO_VERSION))
# Overwinter consensus rules activate at block height 10
self.nodes[0].generate(1)
assert_equal(10, self.nodes[0].getblockcount())
print('Overwinter active')
# Mininodes send ping message to zcashd node.
pingCounter = 1
for node in nodes:
node.send_message(msg_ping(pingCounter))
pingCounter = pingCounter + 1
time.sleep(3)
# Verify Sprout mininodes have been dropped, while Overwinter and
# Sapling mininodes are still connected.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(0, versions.count(SPROUT_PROTO_VERSION))
assert_equal(10, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(10, versions.count(SAPLING_PROTO_VERSION))
# Extend the Overwinter chain with another block.
self.nodes[0].generate(1)
# Connect a new Overwinter mininode to the zcashd node, which is accepted.
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", OVERWINTER_PROTO_VERSION))
time.sleep(3)
assert_equal(21, len(self.nodes[0].getpeerinfo()))
# Connect a new Sapling mininode to the zcashd node, which is accepted.
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", SAPLING_PROTO_VERSION))
time.sleep(3)
assert_equal(22, len(self.nodes[0].getpeerinfo()))
# Try to connect a new Sprout mininode to the zcashd node, which is rejected.
sprout = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", SPROUT_PROTO_VERSION)
nodes.append(sprout)
time.sleep(3)
assert("Version must be 170003 or greater" in str(sprout.rejectMessage))
# Verify that only Overwinter and Sapling mininodes are connected.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(0, versions.count(SPROUT_PROTO_VERSION))
assert_equal(11, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(11, versions.count(SAPLING_PROTO_VERSION))
# Sapling consensus rules activate at block height 15
self.nodes[0].generate(4)
assert_equal(15, self.nodes[0].getblockcount())
print('Sapling active')
# Mininodes send ping message to zcashd node.
pingCounter = 1
for node in nodes:
node.send_message(msg_ping(pingCounter))
pingCounter = pingCounter + 1
time.sleep(3)
# Verify Sprout and Overwinter mininodes have been dropped, while
# Sapling mininodes are still connected.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(0, versions.count(SPROUT_PROTO_VERSION))
assert_equal(0, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(11, versions.count(SAPLING_PROTO_VERSION))
# Extend the Sapling chain with another block.
self.nodes[0].generate(1)
# Connect a new Sapling mininode to the zcashd node, which is accepted.
nodes.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", SAPLING_PROTO_VERSION))
time.sleep(3)
assert_equal(12, len(self.nodes[0].getpeerinfo()))
# Try to connect a new Sprout mininode to the zcashd node, which is rejected.
sprout = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", SPROUT_PROTO_VERSION)
nodes.append(sprout)
time.sleep(3)
assert("Version must be 170006 or greater" in str(sprout.rejectMessage))
# Try to connect a new Overwinter mininode to the zcashd node, which is rejected.
sprout = NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test, "regtest", OVERWINTER_PROTO_VERSION)
nodes.append(sprout)
time.sleep(3)
assert("Version must be 170006 or greater" in str(sprout.rejectMessage))
# Verify that only Sapling mininodes are connected.
peerinfo = self.nodes[0].getpeerinfo()
versions = [x["version"] for x in peerinfo]
assert_equal(0, versions.count(SPROUT_PROTO_VERSION))
assert_equal(0, versions.count(OVERWINTER_PROTO_VERSION))
assert_equal(12, versions.count(SAPLING_PROTO_VERSION))
for node in nodes:
node.disconnect_node()
if __name__ == '__main__':
NUPeerManagementTest().main()