def _can_endorse(self):
self.log.warning("starting _can_endorse()")
connect_nodes(self.nodes[0], 1)
self.sync_all()
disconnect_nodes(self.nodes[1], 0)
mine_until_pop_active(self.nodes[0])
lastblock = self.nodes[0].getblockcount()
# endorse block 200 (fork A tip)
addr0 = self.nodes[0].getnewaddress()
txid = endorse_block(self.nodes[0], self.apm, lastblock, addr0)
self.log.info("node0 endorsed block {} (fork A tip)".format(lastblock))
# mine pop tx on node0
self.nodes[0].generate(nblocks=1)
tip = self.get_best_block(self.nodes[0])
self.log.info("node0 tip is {}".format(tip['height']))
self.nodes[1].generate(nblocks=250)
tip2 = self.get_best_block(self.nodes[1])
self.log.info("node1 tip is {}".format(tip2['height']))
connect_nodes(self.nodes[0], 1)
self.sync_all()
bestblocks = [self.get_best_block(x) for x in self.nodes]
assert_equal(bestblocks[0]['hash'], bestblocks[1]['hash'])
self.log.info("all nodes switched to common block")
for i in range(len(bestblocks)):
assert bestblocks[i]['height'] == tip['height'], \
"node[{}] expected to select shorter chain ({}) with higher pop score\n" \
"but selected longer chain ({})".format(i, tip['height'], bestblocks[i]['height'])
self.log.info("all nodes selected fork A as best chain")
self.log.warning("_can_endorse() succeeded!")
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
for i in range(self.num_nodes - 1):
connect_nodes(self.nodes[i + 1], i)
self.sync_all()
def run_test(self):
"""Main test logic"""
from pypoptools.pypopminer import MockMiner
self.apm = MockMiner()
node = self.nodes[0]
addr = node.getnewaddress()
# stop 1 block behind activation
self.log.info("Mining blocks until activation -5 blocks")
self.log.info("Current node[0] height {}".format(node.getblockcount()))
mine_until_pop_active(node, addr, delta=-5)
self.log.info("Current node[0] height {}".format(node.getblockcount()))
# check that getblocktemplate does NOT have pop-related fields before POP activation
self.log.info("Check that getblocktemplate does not have POP fields")
resp = self.getblocktemplate()
assert_no_field(resp, 'pop_data')
assert_no_field(resp, 'pop_data_root')
assert_no_field(resp, 'pop_first_previous_keystone')
assert_no_field(resp, 'pop_second_previous_keystone')
assert_no_field(resp, 'pop_rewards')
self.log.info("Mining blocks until activation +5 blocks")
self.log.info("Current node[0] height {}".format(node.getblockcount()))
mine_until_pop_active(node, addr, delta=+5)
self.log.info("Current node[0] height {}".format(node.getblockcount()))
self.log.info("Mine chain of {} consecutive endorsed blocks".format(
POP_PAYOUT_DELAY))
create_endorsed_chain(node, self.apm, POP_PAYOUT_DELAY, addr)
self.log.info("Current node[0] height {}".format(node.getblockcount()))
endorse_block(self.nodes[0], self.apm, node.getblockcount() - 5, addr)
self.log.info("Current node[0] height {}".format(node.getblockcount()))
self.log.info("Check that getblocktemplate does have POP fields")
resp = self.getblocktemplate()
is_dict = lambda x: isinstance(x, dict)
is_list = lambda x: isinstance(x, list)
is_int = lambda x: isinstance(x, int)
is_hex = lambda x: bytes.fromhex(x)
is_payload = lambda x: is_dict(x) and "id" in x and "serialized" in x
is_payload_list = lambda x: is_list(x) and all(
is_payload(p) for p in x)
assert_field_exists(resp, 'pop_data', type=is_dict)
assert_field_exists(resp['pop_data'], 'atvs', type=is_payload_list)
assert_field_exists(resp['pop_data'], 'vtbs', type=is_payload_list)
assert_field_exists(resp['pop_data'],
'vbkblocks',
type=is_payload_list)
assert_field_exists(resp['pop_data'], 'version', type=is_int)
assert_field_exists(resp, 'pop_data_root', type=is_hex)
assert_field_exists(resp, 'pop_first_previous_keystone', type=is_hex)
assert_field_exists(resp, 'pop_second_previous_keystone', type=is_hex)
assert_field_exists(resp, 'pop_rewards', type=is_list)
for reward in resp['pop_rewards']:
assert_field_exists(reward, 'amount', type=is_int)
assert_field_exists(reward, 'payout_info', type=is_hex)
self.log.info("Current node[0] height {}".format(node.getblockcount()))
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
# all nodes connected and synced
for i in range(self.num_nodes - 1):
connect_nodes(self.nodes[i + 1], i)
self.sync_all()
self.keystoneInterval = get_keystone_interval(self.nodes[0])
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
# nodes[0,1] will be restarted
# node[2] is a control node
# all nodes connected and synced
for i in range(self.num_nodes - 1):
connect_nodes(self.nodes[i + 1], i)
self.sync_all(self.nodes, timeout=60)
def run_test(self):
mine_until_pop_active(self.nodes[0])
node = self.nodes[0] # alias
self.popctx = PopMiningContext(self.nodes[0])
node.add_p2p_connection(P2PStoreTxInvs())
self.log.info("Create a new transaction and wait until it's broadcast")
txid = int(node.sendtoaddress(node.getnewaddress(), 1), 16)
# Wallet rebroadcast is first scheduled 1 sec after startup (see
# nNextResend in ResendWalletTransactions()). Sleep for just over a
# second to be certain that it has been called before the first
# setmocktime call below.
time.sleep(1.1)
# Can take a few seconds due to transaction trickling
wait_until(lambda: node.p2p.tx_invs_received[txid] >= 1,
lock=mininode_lock)
# Add a second peer since txs aren't rebroadcast to the same peer (see filterInventoryKnown)
node.add_p2p_connection(P2PStoreTxInvs())
self.log.info("Create a block")
# Create and submit a block without the transaction.
# Transactions are only rebroadcast if there has been a block at least five minutes
# after the last time we tried to broadcast. Use mocktime and give an extra minute to be sure.
assert self.nodes[0].getblockchaininfo(
)['softforks']['pop_security']['active'], "POP is not activated"
block_time = int(time.time()) + 6 * 60
node.setmocktime(block_time)
block = create_block(self.popctx, int(node.getbestblockhash(), 16),
create_coinbase(node.getblockcount() + 1),
block_time)
block.rehash()
block.solve()
node.submitblock(ToHex(block))
# Transaction should not be rebroadcast
node.p2ps[1].sync_with_ping()
assert_equal(node.p2ps[1].tx_invs_received[txid], 0)
self.log.info("Transaction should be rebroadcast after 30 minutes")
# Use mocktime and give an extra 5 minutes to be sure.
rebroadcast_time = int(time.time()) + 41 * 60
node.setmocktime(rebroadcast_time)
wait_until(lambda: node.p2ps[1].tx_invs_received[txid] >= 1,
lock=mininode_lock)
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
self.sync_all()
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
connect_nodes(self.nodes[0], 1)
self.sync_all(self.nodes)
def setup_network(self):
self.add_nodes(self.num_nodes)
self.start_node(0)
# POP should be enabled because merkle root calculation differs for non-POP blocks
mine_until_pop_active(self.nodes[0])
self.popctx = PopMiningContext(self.nodes[0])
def setup_network(self):
self.setup_nodes()
mine_until_pop_active(self.nodes[0])
self.popctx = PopMiningContext(self.nodes[0])
