def _test_getblockheader(self):
node = self.nodes[0]
assert_raises_rpc_error(
-8, "hash_or_height must be of length 64 (not 8, for 'nonsense')",
node.getblockheader, "nonsense")
assert_raises_rpc_error(
-8,
"hash_or_height must be hexadecimal string (not 'ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844')",
node.getblockheader,
"ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
assert_raises_rpc_error(
-5, "Block not found", node.getblockheader,
"0cf7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
assert_raises_rpc_error(
-8, "Target block height 201 after current tip 200",
node.getblockheader, 201)
assert_raises_rpc_error(-8, "Target block height -10 is negative",
node.getblockheader, -10)
besthash = node.getbestblockhash()
secondbesthash = node.getblockhash(199)
header = node.getblockheader(hash_or_height=besthash)
assert_equal(header['hash'], besthash)
assert_equal(header['height'], 200)
assert_equal(header['confirmations'], 1)
assert_equal(header['previousblockhash'], secondbesthash)
assert_is_hex_string(header['chainwork'])
assert_equal(header['nTx'], 1)
assert_is_hash_string(header['hash'])
assert_is_hash_string(header['previousblockhash'])
assert_is_hash_string(header['merkleroot'])
assert_is_hash_string(header['bits'], length=None)
assert isinstance(header['time'], int)
assert isinstance(header['mediantime'], int)
assert isinstance(header['nonce'], int)
assert isinstance(header['version'], int)
assert isinstance(int(header['versionHex'], 16), int)
assert isinstance(header['difficulty'], Decimal)
header_by_height = node.getblockheader(hash_or_height=200)
assert_equal(header, header_by_height)
# Next, check that the old alias 'blockhash' still works
# and is interchangeable with hash_or_height
# First, make sure errors work as expected for unknown named params
self.log.info(
"Testing that getblockheader(blockhashhh=\"HEX\") produces the proper error"
)
assert_raises_rpc_error(-8,
"Unknown named parameter blockhashhh",
node.getblockheader,
blockhashhh=header['hash'])
# Next, actually try the old legacy blockhash="xx" style arg
self.log.info(
"Testing that legacy getblockheader(blockhash=\"HEX\") still works ok"
)
header_by_hash2 = node.getblockheader(blockhash=header['hash'])
assert_equal(header, header_by_hash2)
header_by_height2 = node.getblockheader(blockhash=200)
assert_equal(header, header_by_height2)
# check that we actually get a hex string back from getblockheader
# if verbose is set to false.
header_verbose_false = node.getblockheader(200, False)
assert not isinstance(header_verbose_false, dict)
assert isinstance(header_verbose_false, str)
assert (c in string.hexdigits for c in header_verbose_false)
assert_is_hex_string(header_verbose_false)
# check that header_verbose_false is the same header we get via
# getblockheader(hash_or_height=besthash) just in a different "form"
h = CBlockHeader()
h.deserialize(BytesIO(hex_str_to_bytes(header_verbose_false)))
h.calc_sha256()
assert_equal(header['version'], h.nVersion)
assert_equal(header['time'], h.nTime)
assert_equal(header['previousblockhash'],
"{:064x}".format(h.hashPrevBlock))
assert_equal(header['merkleroot'], "{:064x}".format(h.hashMerkleRoot))
assert_equal(header['hash'], h.hash)
# check that we get the same header by hash and by height in
# the case verbose is set to False
header_verbose_false_by_hash = node.getblockheader(besthash, False)
assert_equal(header_verbose_false_by_hash, header_verbose_false)
def test_basic(self):
# All messages are received in the same socket which means
# that this test fails if the publishing order changes.
# Note that the publishing order is not defined in the documentation and
# is subject to change.
import zmq
# Invalid zmq arguments don't take down the node, see #17185.
self.restart_node(0, ["-zmqpubrawtx=foo", "-zmqpubhashtx=bar"])
address = 'tcp://127.0.0.1:28332'
socket = self.ctx.socket(zmq.SUB)
socket.set(zmq.RCVTIMEO, 60000)
# Subscribe to all available topics.
hashblock = ZMQSubscriber(socket, b"hashblock")
hashtx = ZMQSubscriber(socket, b"hashtx")
rawblock = ZMQSubscriber(socket, b"rawblock")
rawtx = ZMQSubscriber(socket, b"rawtx")
self.restart_node(0, ["-zmqpub%s=%s" % (sub.topic.decode(), address) for sub in [hashblock, hashtx, rawblock, rawtx]])
connect_nodes(self.nodes[0], 1)
socket.connect(address)
# Relax so that the subscriber is ready before publishing zmq messages
sleep(0.2)
num_blocks = 5
self.log.info("Generate %(n)d blocks (and %(n)d coinbase txes)" % {"n": num_blocks})
genhashes = self.nodes[0].generatetoaddress(num_blocks, ADDRESS_BCRT1_UNSPENDABLE)
self.sync_all()
for x in range(num_blocks):
# Should receive the coinbase txid.
txid = hashtx.receive()
# Should receive the coinbase raw transaction.
hex = rawtx.receive()
tx = CTransaction()
tx.deserialize(BytesIO(hex))
tx.calc_sha256()
assert_equal(tx.hash, txid.hex())
# Should receive the generated block hash.
hash = hashblock.receive().hex()
assert_equal(genhashes[x], hash)
# The block should only have the coinbase txid.
assert_equal([txid.hex()], self.nodes[1].getblock(hash)["tx"])
# Should receive the generated raw block.
block = rawblock.receive()
f = BytesIO(block)
header = CBlockHeader()
header.deserialize(f)
header.rehash()
assert_equal(genhashes[x], header.hash)
if self.is_wallet_compiled():
self.log.info("Wait for tx from second node")
payment_txid = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.0)
self.sync_all()
# Should receive the broadcasted txid.
txid = hashtx.receive()
assert_equal(payment_txid, txid.hex())
# Should receive the broadcasted raw transaction.
hex = rawtx.receive()
assert_equal(payment_txid, hash256_reversed(hex).hex())
self.log.info("Test the getzmqnotifications RPC")
assert_equal(self.nodes[0].getzmqnotifications(), [
{"type": "pubhashblock", "address": address, "hwm": 1000},
{"type": "pubhashtx", "address": address, "hwm": 1000},
{"type": "pubrawblock", "address": address, "hwm": 1000},
{"type": "pubrawtx", "address": address, "hwm": 1000},
])
assert_equal(self.nodes[1].getzmqnotifications(), [])
def _test_getblockheader(self):
node = self.nodes[0]
assert_raises_rpc_error(
-8, "hash_or_height must be of length 64 (not 8, for 'nonsense')",
node.getblockheader, "nonsense")
assert_raises_rpc_error(
-8,
"hash_or_height must be hexadecimal string (not 'ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844')",
node.getblockheader,
"ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
assert_raises_rpc_error(
-5, "Block not found", node.getblockheader,
"0cf7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
assert_raises_rpc_error(
-8, "Target block height 201 after current tip 200",
node.getblockheader, 201)
assert_raises_rpc_error(-8, "Target block height -10 is negative",
node.getblockheader, -10)
besthash = node.getbestblockhash()
secondbesthash = node.getblockhash(199)
header = node.getblockheader(hash_or_height=besthash)
assert_equal(header['hash'], besthash)
assert_equal(header['height'], 200)
assert_equal(header['confirmations'], 1)
assert_equal(header['previousblockhash'], secondbesthash)
assert_is_hex_string(header['chainwork'])
assert_equal(header['nTx'], 1)
assert_is_hash_string(header['hash'])
assert_is_hash_string(header['previousblockhash'])
assert_is_hash_string(header['merkleroot'])
assert_is_hash_string(header['bits'], length=None)
assert isinstance(header['time'], int)
assert isinstance(header['mediantime'], int)
assert isinstance(header['nonce'], int)
assert isinstance(header['version'], int)
assert isinstance(int(header['versionHex'], 16), int)
assert isinstance(header['difficulty'], Decimal)
header_by_height = node.getblockheader(hash_or_height=200)
assert_equal(header, header_by_height)
# check that we actually get a hex string back from getblockheader
# if verbose is set to false.
header_verbose_false = node.getblockheader(200, False)
assert not isinstance(header_verbose_false, dict)
assert isinstance(header_verbose_false, str)
assert (c in string.hexdigits for c in header_verbose_false)
assert_is_hex_string(header_verbose_false)
# check that header_verbose_false is the same header we get via
# getblockheader(hash_or_height=besthash) just in a different "form"
h = CBlockHeader()
h.deserialize(BytesIO(hex_str_to_bytes(header_verbose_false)))
h.calc_sha256()
assert_equal(header['version'], h.nVersion)
assert_equal(header['time'], h.nTime)
assert_equal(header['previousblockhash'],
"{:064x}".format(h.hashPrevBlock))
assert_equal(header['merkleroot'], "{:064x}".format(h.hashMerkleRoot))
assert_equal(header['hash'], h.hash)
# check that we get the same header by hash and by height in
# the case verbose is set to False
header_verbose_false_by_hash = node.getblockheader(besthash, False)
assert_equal(header_verbose_false_by_hash, header_verbose_false)
