def _restart_init_test(self):
self.SIZE = 20
self.addr0 = self.nodes[0].getnewaddress()
# 100 blocks without endorsements
self.nodes[0].generate(nblocks=100)
self.log.info("node0 started mining of {} endorsed blocks".format(
self.SIZE))
create_endorsed_chain(self.nodes[0], self.apm, self.SIZE, self.addr0)
self.log.info("node0 finished creation of {} endorsed blocks".format(
self.SIZE))
self.sync_blocks(self.nodes)
self.log.info("nodes are in sync")
# stop node0
self.restart_node(0)
self.restart_node(1)
self.log.info("nodes[0,1] restarted")
self.sync_all(self.nodes, timeout=30)
self.log.info("nodes are in sync")
bestblocks = [self.get_best_block(x) for x in self.nodes]
popdata = [
x.getpopdatabyheight(bestblocks[0]['height']) for x in self.nodes
]
# when node0 stops, its VBK/BTC trees get cleared. When we start it again, it MUST load payloads into trees.
# if this assert fails, it means that node restarted, but NOT loaded its VBK/BTC state into memory.
# node[2] is a control node that has never been shut down.
assert_equal(popdata[0], popdata[2])
assert_equal(popdata[1], popdata[2])
self.log.warning("success! _restart_init_test()")
def run_test(self):
"""Main test logic"""
from pypoptools.pypopminer import MockMiner
self.apm = MockMiner()
self.addrs = [x.getnewaddress() for x in self.nodes]
self.endorsed_length = 100
assert_pop_state_equal(self.nodes)
create_endorsed_chain(self.nodes[0], self.apm, self.endorsed_length, self.addrs[0])
self.sync_all(self.nodes, timeout=20)
assert_pop_state_equal(self.nodes)
checkblocks = 0 # all blocks
# 0, 1, 2, 3, 4
for checklevel in range(5):
self.log.info("checkblocks={} checklevel={}".format(checkblocks, checklevel))
self.restart_node(0, extra_args=[
"-checkblocks={}".format(checkblocks),
"-checklevel={}".format(checklevel)
])
connect_nodes(self.nodes[0], 1)
self.sync_all(self.nodes, timeout=120)
assert_pop_state_equal(self.nodes)
self.log.info("success")
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 _4_chains_converge(self):
self.log.warning("_4_chains_converge() started!")
# disconnect all nodes
for i in range(self.num_nodes):
for node in self.nodes:
disconnect_nodes(node, i)
self.log.info("all nodes disconnected")
lastblock = self.nodes[3].getblockcount()
# node[i] creates endorsed chain
toMine = 15
for i, node in enumerate(self.nodes):
self.log.info(
"node[{}] started to create endorsed chain of {} blocks".
format(i, toMine))
addr = node.getnewaddress()
create_endorsed_chain(node, self.apm, toMine, addr)
# all nodes have different tips at height 303 + keystone interval
bestblocks = [self.get_best_block(x) for x in self.nodes]
for b in bestblocks:
assert b['height'] == lastblock + toMine
assert len(set([x['hash'] for x in bestblocks])) == len(bestblocks)
self.log.info("all nodes have different tips")
# connect all nodes to each other
for i in range(self.num_nodes):
for node in self.nodes:
connect_nodes(node, i)
self.log.info("all nodes connected")
self.sync_blocks(self.nodes, timeout=60)
self.sync_pop_tips(self.nodes, timeout=60)
self.log.info("all nodes have common tip")
expected_best = bestblocks[0]
bestblocks = [self.get_best_block(x) for x in self.nodes]
for best in bestblocks:
assert_equal(best, expected_best)
self.log.warning("_4_chains_converge() succeeded!")