def verifyTransaction(rpc: RPC, tx: Transaction) -> None:
if rpc.call("transactions", "getTransaction",
[tx.hash.hex()]) != tx.toJSON():
raise TestError("Transaction doesn't match.")
if rpc.call("consensus", "getStatus",
[tx.hash.hex()])["verified"] != tx.verified:
raise TestError("Transaction's status doesn't match.")
def verifyMeritRemoval(rpc: RPC, total: int, merit: int, holder: int,
pending: bool) -> None:
#Verify the total Merit.
if rpc.call("merit",
"getTotalMerit") != total if pending else total - merit:
raise TestError("Total Merit doesn't match.")
#Verify the holder's Merit.
if rpc.call("merit", "getMerit", [holder]) != {
"unlocked": True,
"malicious": pending,
"merit": merit if pending else 0
}:
raise TestError("Holder's Merit doesn't match.")
def verifyBlockchain(
rpc: RPC,
blockchain: Blockchain
) -> None:
#Verify the height.
if rpc.call("merit", "getHeight") != len(blockchain.blocks):
raise TestError("Height doesn't match.")
#Verify the difficulty.
if blockchain.difficulty() != int(rpc.call("merit", "getDifficulty"), 16):
raise TestError("Difficulty doesn't match.")
#Verify the blocks.
for block in blockchain.blocks:
if rpc.call("merit", "getBlock", [block.header.nonce]) != block.toJSON():
raise TestError("Block doesn't match.")
def verifyConsensus(rpc: RPC, consensus: Consensus) -> None:
for pubKey in consensus.holders:
for e in range(len(consensus.holders[pubKey])):
if rpc.call(
"consensus", "getElement",
[pubKey.hex(), e]) != consensus.holders[pubKey][e].toJSON():
raise TestError("Element doesn't match.")
def verifyDataDifficulty(
rpc: RPC,
dataDiff: int
) -> None:
sleep(1)
if rpc.call("consensus", "getDataDifficulty") != dataDiff:
raise TestError("Data Difficulty doesn't match.")
def verifySendDifficulty(
rpc: RPC,
sendDiff: int
) -> None:
#Sleep to ensure data races aren't a problem.
sleep(1)
if rpc.call("consensus", "getSendDifficulty") != sendDiff:
raise TestError("Send Difficulty doesn't match.")
def verifyBlockchain(rpc: RPC, blockchain: Blockchain) -> None:
#Sleep to ensure data races aren't a problem.
sleep(2)
#Verify the height.
if rpc.call("merit", "getHeight") != len(blockchain.blocks):
raise TestError("Height doesn't match.")
#Verify the difficulty.
if blockchain.difficulty() != int(rpc.call("merit", "getDifficulty"), 16):
raise TestError("Difficulty doesn't match.")
#Verify the Blocks.
for b in range(len(blockchain.blocks)):
if rpc.call("merit", "getBlock", [b]) != blockchain.blocks[b].toJSON():
raise TestError("Block doesn't match.")
if rpc.call("merit", "getBlock",
[blockchain.blocks[b].header.hash.hex().upper()
]) != blockchain.blocks[b].toJSON():
raise TestError("Block doesn't match.")
def HundredSixSignedElementsTest(rpc: RPC) -> None:
#Blockchain. Solely used to get the genesis Block hash.
blockchain: Blockchain = Blockchain()
#BLS Key.
blsPrivKey: PrivateKey = PrivateKey(
blake2b(b'\0', digest_size=32).digest())
sig: Signature = blsPrivKey.sign(bytes())
#Create a Data.
#This is required so the Verification isn't terminated early for having an unknown hash.
data: bytes = bytes.fromhex(rpc.call("personal", "data", ["AA"]))
#Create a signed Verification, SendDifficulty, and DataDifficulty.
elements: List[SignedElement] = [
SignedVerification(data, 1, sig),
SignedSendDifficulty(bytes.fromhex("00" * 32), 0, 1, sig),
SignedDataDifficulty(bytes.fromhex("00" * 32), 0, 1, sig)
]
for elem in elements:
#Handshake with the node.
rpc.meros.connect(254, 254, blockchain.blocks[0].header.hash)
#Send the Element.
rpc.meros.signedElement(elem)
#Sleep for a bit.
sleep(0.2)
#Verify the node didn't crash.
try:
if rpc.call("merit", "getHeight") != 1:
raise Exception()
except Exception:
raise TestError(
"Node crashed after being sent a malformed Element.")
def verifyMeritRemoval(rpc: RPC, height: int, merit: int,
removal: MeritRemoval, pending: bool) -> None:
#Verify the Merit Holder height.
if rpc.call("consensus", "getHeight", [removal.holder.hex()]) != height:
raise TestError("Merit Holder height doesn't match.")
#Get the MeritRemoval.
mrJSON: Dict[str, Any] = rpc.call("consensus", "getElement",
[removal.holder.hex(), removal.nonce])
#Verify the nonce.
if pending:
if mrJSON["nonce"] != 0:
raise TestError("MeritRemoval nonce is invalid.")
mrJSON["nonce"] = removal.nonce
#Verify the MeritRemoval.
if mrJSON != removal.toJSON():
raise TestError("Merit Removal doesn't match.")
#Verify the Total Merit.
if rpc.call("merit", "getTotalMerit") != merit if pending else 0:
raise TestError("Total Merit doesn't match.")
#Verify the Live Merit.
if rpc.call("merit", "getLiveMerit",
[removal.holder.hex()]) != merit if pending else 0:
raise TestError("Live Merit doesn't match.")
#Verify the Merit Holder's Merit.
if rpc.call("merit", "getMerit", [removal.holder.hex()]) != {
"live": True,
"malicious": pending,
"merit": merit if pending else 0
}:
raise TestError("Merit Holder's Merit doesn't match.")
def VUnknownTest(
rpc: RPC
) -> None:
file: IO[Any] = open("PythonTests/Vectors/Consensus/Verification/Parsable.json", "r")
vectors: Dict[str, Any] = json.loads(file.read())
#SignedVerification.
sv: SignedVerification = SignedVerification.fromJSON(vectors["verification"])
#Blockchain.
blockchain: Blockchain = Blockchain.fromJSON(
b"MEROS_DEVELOPER_NETWORK",
60,
int("FAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", 16),
vectors["blockchain"]
)
file.close()
#Handshake with the node.
rpc.meros.connect(254, 254, len(blockchain.blocks))
sentLast: bool = False
reqHash: bytes = bytes()
while True:
msg: bytes = rpc.meros.recv()
if MessageType(msg[0]) == MessageType.Syncing:
rpc.meros.acknowledgeSyncing()
elif MessageType(msg[0]) == MessageType.GetBlockHash:
height: int = int.from_bytes(msg[1 : 5], "big")
if height == 0:
rpc.meros.blockHash(blockchain.last())
else:
if height >= len(blockchain.blocks):
raise TestError("Meros asked for a Block Hash we do not have.")
rpc.meros.blockHash(blockchain.blocks[height].header.hash)
elif MessageType(msg[0]) == MessageType.BlockHeaderRequest:
reqHash = msg[1 : 49]
for block in blockchain.blocks:
if block.header.hash == reqHash:
rpc.meros.blockHeader(block.header)
break
if block.header.hash == blockchain.last():
raise TestError("Meros asked for a Block Header we do not have.")
elif MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1 : 49]
for block in blockchain.blocks:
if block.header.hash == reqHash:
rpc.meros.blockBody(block.body)
break
if block.header.hash == blockchain.last():
raise TestError("Meros asked for a Block Body we do not have.")
elif MessageType(msg[0]) == MessageType.ElementRequest:
rpc.meros.element(sv)
elif MessageType(msg[0]) == MessageType.TransactionRequest:
sentLast = True
rpc.meros.dataMissing()
elif MessageType(msg[0]) == MessageType.SyncingOver:
if sentLast:
break
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
#Verify the Verification and Block were not added.
if rpc.call("consensus", "getHeight", [sv.holder.hex()]) != 0:
raise TestError("Meros added an unknown Verification.")
if rpc.call("merit", "getHeight") != 2:
raise TestError("Meros added a Block with an unknown Verification.")
def EightyEightTest(rpc: RPC) -> None:
#Ed25519 key.
edPrivKey: ed25519.SigningKey = ed25519.SigningKey(b'\0' * 32)
edPubKey: ed25519.VerifyingKey = edPrivKey.get_verifying_key()
#BLS key.
blsPrivKey: PrivateKey = PrivateKey(
blake2b(b'\0', digest_size=32).digest())
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
#Blocks.
file: IO[Any] = open("PythonTests/Vectors/Merit/BlankBlocks.json", "r")
blocks: List[Dict[str, Any]] = json.loads(file.read())
file.close()
#Merit.
merit: Merit = Merit()
#Spam Filter.
dataFilter: SpamFilter = SpamFilter(bytes.fromhex("CC" * 32))
#Handshake with the node.
rpc.meros.connect(254, 254, merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block = Block.fromJSON(merit.blockchain.keys, blocks[0])
merit.blockchain.add(block)
rpc.meros.blockHeader(block.header)
#Handle sync requests.
reqHash: bytes = bytes()
while True:
msg: bytes = rpc.meros.recv()
if MessageType(msg[0]) == MessageType.Syncing:
rpc.meros.syncingAcknowledged()
elif MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1:33]
if reqHash != block.header.hash:
raise TestError(
"Meros asked for a Block Body that didn't belong to the Block we just sent it."
)
#Send the BlockBody.
rpc.meros.blockBody(merit.state.nicks, block)
elif MessageType(msg[0]) == MessageType.SyncingOver:
pass
elif MessageType(msg[0]) == MessageType.BlockHeader:
break
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
#Create two Datas.
datas: List[Data] = [Data(bytes(32), edPubKey.to_bytes())]
datas.append(Data(datas[0].hash, b"Hello there! General Kenobi."))
for data in datas:
#Sign them and have them beat the spam filter.
data.sign(edPrivKey)
data.beat(dataFilter)
#Transmit them.
rpc.meros.transaction(data)
#Verify both.
verifs: List[SignedVerification] = [
SignedVerification(datas[0].hash),
SignedVerification(datas[1].hash)
]
for verif in verifs:
verif.sign(0, blsPrivKey)
#Only transmit the second.
rpc.meros.signedElement(verifs[1])
sleep(0.5)
#Verify the block template has no verifications.
if bytes.fromhex(
rpc.call("merit", "getBlockTemplate",
[blsPubKey])["header"])[36:68] != bytes(32):
raise TestError("Block template has Verification Packets.")
#Transmit the first signed verification.
rpc.meros.signedElement(verifs[0])
sleep(0.5)
#Verify the block template has both verifications.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate",
[blsPubKey])
template["header"] = bytes.fromhex(template["header"])
packets: List[VerificationPacket] = [
VerificationPacket(datas[0].hash, [0]),
VerificationPacket(datas[1].hash, [0])
]
if template["header"][36:68] != BlockHeader.createContents(
merit.state.nicks, packets):
raise TestError(
"Block template doesn't have both Verification Packets.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents(merit.state.nicks, packets),
1,
template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39],
packets),
0,
int.from_bytes(template["header"][-4:], byteorder="big"),
),
BlockBody(
packets, [],
Signature.aggregate([verifs[0].signature, verifs[1].signature])))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(merit.state.nicks, block.header.sketchSalt,
len(packets)) != bytes.fromhex(template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
#Publish it.
rpc.call("merit", "publishBlock", [
template["id"],
(template["header"] + block.header.proof.to_bytes(4, byteorder="big") +
block.header.signature + block.body.serialize(
merit.state.nicks, block.header.sketchSalt, len(packets))).hex()
])
#Verify the Blockchain.
verifyBlockchain(rpc, merit.blockchain)
def verifyTransaction(rpc: RPC, tx: Transaction) -> None:
if rpc.call("transactions", "getTransaction",
[tx.hash.hex()]) != tx.toJSON():
raise TestError("Transaction doesn't match.")
def TElementTest(rpc: RPC) -> None:
#BLS key.
blsPrivKey: PrivateKey = PrivateKey(
blake2b(b'\0', digest_size=32).digest())
blsPubKey: str = blsPrivKey.toPublicKey().serialize().hex()
#Blocks.
file: IO[Any] = open("PythonTests/Vectors/Merit/BlankBlocks.json", "r")
blocks: List[Dict[str, Any]] = json.loads(file.read())
file.close()
#Merit.
merit: Merit = Merit()
#Handshake with the node.
rpc.meros.connect(254, 254, merit.blockchain.blocks[0].header.hash)
#Send the first Block.
block: Block = Block.fromJSON(merit.blockchain.keys, blocks[0])
merit.blockchain.add(block)
rpc.meros.blockHeader(block.header)
#Handle sync requests.
reqHash: bytes = bytes()
while True:
msg: bytes = rpc.meros.recv()
if MessageType(msg[0]) == MessageType.Syncing:
rpc.meros.syncingAcknowledged()
elif MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1:33]
if reqHash != block.header.hash:
raise TestError(
"Meros asked for a Block Body that didn't belong to the Block we just sent it."
)
#Send the BlockBody.
rpc.meros.blockBody(merit.state.nicks, block)
elif MessageType(msg[0]) == MessageType.SyncingOver:
pass
elif MessageType(msg[0]) == MessageType.BlockHeader:
break
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
#Create and transmit a DataDifficulty.
dataDiff: SignedDataDifficulty = SignedDataDifficulty(
bytes.fromhex("00" * 32), 0, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has the DataDifficulty.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate",
[blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36:68] != BlockHeader.createContents(
merit.state.nicks, [], [dataDiff]):
raise TestError("Block template doesn't have the Data Difficulty.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents(merit.state.nicks, [], [dataDiff]),
1,
template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39], []),
0,
int.from_bytes(template["header"][-4:], byteorder="big"),
), BlockBody([], [dataDiff], dataDiff.signature))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(merit.state.nicks,
block.header.sketchSalt) != bytes.fromhex(
template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
#Publish it.
rpc.call("merit", "publishBlock", [
template["id"],
(template["header"] + block.header.proof.to_bytes(4, byteorder="big") +
block.header.signature + block.body.serialize(
merit.state.nicks, block.header.sketchSalt)).hex()
])
#Create and transmit a new DataDifficulty.
dataDiff = SignedDataDifficulty(bytes.fromhex("AA" * 32), 1, 0)
dataDiff.sign(0, blsPrivKey)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has the DataDifficulty.
template = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36:68] != BlockHeader.createContents(
merit.state.nicks, [], [dataDiff]):
raise TestError("Block template doesn't have the new Data Difficulty.")
#Create and transmit a new DataDifficulty reusing an existing nonce.
signatures: List[Signature] = [dataDiff.signature]
dataDiff = SignedDataDifficulty(bytes.fromhex("BB" * 32), 1, 0)
dataDiff.sign(0, blsPrivKey)
signatures.append(dataDiff.signature)
rpc.meros.signedElement(dataDiff)
sleep(0.5)
#Verify the block template has a MeritRemoval.
mr: MeritRemoval = MeritRemoval(
SignedDataDifficulty(bytes.fromhex("AA" * 32), 1, 0),
SignedDataDifficulty(bytes.fromhex("BB" * 32), 1, 0), False)
template = rpc.call("merit", "getBlockTemplate", [blsPubKey])
template["header"] = bytes.fromhex(template["header"])
if template["header"][36:68] != BlockHeader.createContents(
merit.state.nicks, [], [mr]):
raise TestError("Block template doesn't have the Merit Removal.")
#Mine the Block.
block = Block(
BlockHeader(
0,
block.header.hash,
BlockHeader.createContents(merit.state.nicks, [], [mr]),
1,
template["header"][-43:-39],
BlockHeader.createSketchCheck(template["header"][-43:-39], []),
0,
int.from_bytes(template["header"][-4:], byteorder="big"),
), BlockBody([], [mr], Signature.aggregate(signatures)))
if block.header.serializeHash()[:-4] != template["header"]:
raise TestError("Failed to recreate the header.")
if block.body.serialize(merit.state.nicks,
block.header.sketchSalt) != bytes.fromhex(
template["body"]):
raise TestError("Failed to recreate the body.")
block.mine(blsPrivKey, merit.blockchain.difficulty())
merit.blockchain.add(block)
#Publish it.
rpc.call("merit", "publishBlock", [
template["id"],
(template["header"] + block.header.proof.to_bytes(4, byteorder="big") +
block.header.signature + block.body.serialize(
merit.state.nicks, block.header.sketchSalt)).hex()
])
#Verify the Blockchain.
verifyBlockchain(rpc, merit.blockchain)
if not testsToRun:
break
if test.__name__ not in testsToRun:
continue
testsToRun.remove(test.__name__)
print("\033[0;37mRunning " + test.__name__ + ".")
#Message to display on a Node crash.
crash: str = "\033[5;31m" + test.__name__ + " caused the node to crash!\033[0;31m"
#Meros instance.
meros: Meros = Meros(test.__name__, port, port + 1)
sleep(5)
rpc: RPC = RPC(meros)
try:
test(rpc)
raise SuccessError()
except SuccessError as e:
ress.append("\033[0;32m" + test.__name__ + " succeeded.")
except EmptyError as e:
ress.append("\033[0;33m" + test.__name__ + " is empty.")
except NodeError as e:
ress.append(crash)
except TestError as e:
ress.append("\033[0;31m" + test.__name__ + " failed: " + str(e))
except Exception as e:
ress.append("\033[0;31m" + test.__name__ + " is invalid.")
ress.append(format_exc().rstrip())
finally:
def HundredSixBlockElementsTest(rpc: RPC) -> None:
#Load the vectors.
file: IO[Any] = open(
"PythonTests/Vectors/Consensus/HundredSix/BlockElements.json", "r")
vectors: Dict[str, Any] = json.loads(file.read())
file.close()
#Blockchain. Solely used to get the genesis Block hash.
blockchain: Blockchain = Blockchain()
#Transactions.
transactions: Transactions = Transactions.fromJSON(vectors["transactions"])
#Parse the Blocks from the vectors.
blocks: List[Block] = []
for block in vectors["blocks"]:
blocks.append(Block.fromJSON({}, block))
for block in blocks:
#Handshake with the node.
rpc.meros.connect(254, 254, blockchain.blocks[0].header.hash)
#Send the Block.
rpc.meros.blockHeader(block.header)
#Flag of if the Block's Body synced.
blockBodySynced: bool = False
#Handle sync requests.
reqHash: bytes = bytes()
while True:
try:
msg: bytes = rpc.meros.recv()
except TestError:
if not blockBodySynced:
raise TestError(
"Node disconnected us before syncing the body.")
#Verify the node didn't crash.
try:
if rpc.call("merit", "getHeight") != 1:
raise Exception()
except Exception:
raise TestError(
"Node crashed after being sent a malformed Element.")
#Since the node didn't crash, break out of this loop to trigger the next test case.
break
if MessageType(msg[0]) == MessageType.Syncing:
rpc.meros.syncingAcknowledged()
elif MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1:33]
if reqHash != block.header.hash:
raise TestError(
"Meros asked for a Block Body that didn't belong to the Block we just sent it."
)
#Send the BlockBody.
blockBodySynced = True
rpc.meros.blockBody([], block)
elif MessageType(msg[0]) == MessageType.SketchHashesRequest:
if not block.body.packets:
raise TestError(
"Meros asked for Sketch Hashes from a Block without any."
)
reqHash = msg[1:33]
if reqHash != block.header.hash:
raise TestError(
"Meros asked for Sketch Hashes that didn't belong to the Block we just sent it."
)
#Create the haashes.
hashes: List[int] = []
for packet in block.body.packets:
hashes.append(Sketch.hash(block.header.sketchSalt, packet))
#Send the Sketch Hashes.
rpc.meros.sketchHashes(hashes)
elif MessageType(msg[0]) == MessageType.SketchHashRequests:
if not block.body.packets:
raise TestError(
"Meros asked for Verification Packets from a Block without any."
)
reqHash = msg[1:33]
if reqHash != block.header.hash:
raise TestError(
"Meros asked for Verification Packets that didn't belong to the Block we just sent it."
)
#Create a lookup of hash to packets.
packets: Dict[int, VerificationPacket] = {}
for packet in block.body.packets:
packets[Sketch.hash(block.header.sketchSalt,
packet)] = packet
#Look up each requested packet and respond accordingly.
for h in range(int.from_bytes(msg[33:37], byteorder="big")):
sketchHash: int = int.from_bytes(msg[37 + (h * 8):45 +
(h * 8)],
byteorder="big")
if sketchHash not in packets:
raise TestError(
"Meros asked for a non-existent Sketch Hash.")
rpc.meros.packet(packets[sketchHash])
elif MessageType(msg[0]) == MessageType.TransactionRequest:
reqHash = msg[1:33]
if reqHash not in transactions.txs:
raise TestError(
"Meros asked for a non-existent Transaction.")
rpc.meros.transaction(transactions.txs[reqHash])
elif MessageType(msg[0]) == MessageType.SyncingOver:
pass
elif MessageType(msg[0]) == MessageType.BlockHeader:
#Raise a TestError if the Block was added.
raise TestError("Meros synced a Block with an invalid holder.")
else:
raise TestError("Unexpected message sent: " +
msg.hex().upper())
#Reset the node.
rpc.reset()
def HundredFiftyFiveTest(rpc: RPC) -> None:
#Ed25519 keys.
edPrivKeys: List[ed25519.SigningKey] = [
ed25519.SigningKey(b'\0' * 32),
ed25519.SigningKey(b'\1' * 32)
]
edPubKeys: List[ed25519.VerifyingKey] = [
edPrivKeys[0].get_verifying_key(), edPrivKeys[1].get_verifying_key()
]
#BLS keys.
blsPrivKey: PrivateKey = PrivateKey(
bytes.fromhex(rpc.call("personal", "getMiner")))
blsPubKey: bytes = blsPrivKey.toPublicKey().serialize()
#Blockchain.
blockchain: Blockchain = Blockchain()
#Spam Filter.
dataFilter: SpamFilter = SpamFilter(5)
#Handshake with the node.
rpc.meros.liveConnect(blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(blockchain.blocks[0].header.hash)
#Call getBlockTemplate just to get an ID.
#Skips the need to write a sync loop for the BlockBody.
template: Dict[str, Any] = rpc.call("merit", "getBlockTemplate",
[blsPubKey.hex()])
#Mine a Block.
block = Block(
BlockHeader(0, blockchain.blocks[0].header.hash, bytes(32), 1,
bytes(4), bytes(32), blsPubKey,
blockchain.blocks[0].header.time + 1200, 0), BlockBody())
block.mine(blsPrivKey, blockchain.difficulty())
blockchain.add(block)
#Publish it.
rpc.call("merit", "publishBlock",
[template["id"], block.serialize().hex()])
#Handle the fact Meros will now broadcast it to us.
if MessageType(rpc.meros.live.recv()[0]) != MessageType.BlockHeader:
raise TestError("Meros didn't broadcast the Block it just published.")
#Create the Datas.
datas: List[Data] = [
Data(bytes(32), edPubKeys[0].to_bytes()),
Data(bytes(32), edPubKeys[1].to_bytes())
]
for d in range(len(datas)):
#Sign, and mine the Data.
datas[d].sign(edPrivKeys[d])
datas[d].beat(dataFilter)
#Send the Data and verify Meros sends it back.
if rpc.meros.liveTransaction(datas[d]) != rpc.meros.live.recv():
raise TestError("Meros didn't send back the Data.")
#Verify Meros sends back a Verification.
res: bytes = rpc.meros.live.recv()
if MessageType(res[0]) != MessageType.SignedVerification:
raise TestError("Meros didn't send a SignedVerification.")
verif: SignedVerification = SignedVerification(datas[d].hash)
verif.sign(0, blsPrivKey)
if res[1:] != verif.signedSerialize():
raise TestError(
"Meros didn't send the correct SignedVerification.")
def HundredTwentyFourTest(
rpc: RPC
) -> None:
#Load the vectors.
file: IO[Any] = open("PythonTests/Vectors/Merit/BlankBlocks.json", "r")
vectors: List[Dict[str, Any]] = json.loads(file.read())
file.close()
#Blockchain. Solely used to get the genesis Block hash.
blockchain: Blockchain = Blockchain()
#Parse the Blocks from the vectors.
for i in range(2):
blockchain.add(Block.fromJSON(vectors[i]))
#Handshake with the node.
rpc.meros.liveConnect(blockchain.blocks[0].header.hash)
rpc.meros.syncConnect(blockchain.blocks[0].header.hash)
def handleSync() -> None:
#Handle sync requests.
reqHash: bytes = bytes()
bH: int = 0
bB: int = 1
while True:
if bB == 3:
break
msg: bytes = rpc.meros.sync.recv()
if MessageType(msg[0]) == MessageType.BlockListRequest:
reqHash = msg[3 : 35]
for b in range(len(blockchain.blocks)):
if blockchain.blocks[b].header.hash == reqHash:
blockList: List[bytes] = []
for bl in range(1, msg[2] + 2):
if msg[1] == 0:
if b - bl < 0:
break
blockList.append(blockchain.blocks[b - bl].header.hash)
elif msg[1] == 1:
blockList.append(blockchain.blocks[b + bl].header.hash)
else:
raise TestError("Meros asked for an invalid direction in a BlockListRequest.")
if blockList == []:
rpc.meros.dataMissing()
break
rpc.meros.blockList(blockList)
break
if b == len(blockchain.blocks):
rpc.meros.dataMissing()
elif MessageType(msg[0]) == MessageType.BlockHeaderRequest:
reqHash = msg[1 : 33]
if reqHash != blockchain.blocks[2 - bH].header.hash:
raise TestError("Meros asked for a Block Header that didn't belong to the next Block.")
#Send the BlockHeader.
rpc.meros.syncBlockHeader(blockchain.blocks[2 - bH].header)
bH += 1
elif MessageType(msg[0]) == MessageType.BlockBodyRequest:
reqHash = msg[1 : 33]
if reqHash != blockchain.blocks[bB].header.hash:
raise TestError("Meros asked for a Block Body that didn't belong to the next Block.")
#Send the Block.
rpc.meros.blockBody(blockchain.blocks[bB])
bB += 1
else:
raise TestError("Unexpected message sent: " + msg.hex().upper())
#Verify the Blockchain.
verifyBlockchain(rpc, blockchain)
#Send another Handshake with the latest block as the tip.
rpc.meros.live.send(
MessageType.Handshake.toByte() +
(254).to_bytes(1, "big") +
(254).to_bytes(1, "big") +
b'\0\0\0' +
blockchain.last(),
False
)
#Verify Meros responds with their tail (the genesis).
if rpc.meros.live.recv() != MessageType.BlockchainTail.toByte() + blockchain.blocks[0].header.hash:
raise TestError("Meros didn't respond with its Blockchain's Tail.")
#Handle the sync.
handleSync()
#Reset Meros and do the same with Syncing.
rpc.reset()
rpc.meros.syncConnect(blockchain.blocks[0].header.hash)
rpc.meros.sync.send(
MessageType.Syncing.toByte() +
(254).to_bytes(1, "big") +
(254).to_bytes(1, "big") +
b'\0\0\0' +
blockchain.last(),
False
)
if rpc.meros.sync.recv() != MessageType.BlockchainTail.toByte() + blockchain.blocks[0].header.hash:
raise TestError("Meros didn't respond with its Blockchain's Tail.")
handleSync()
def verifySendDifficulty(rpc: RPC, sendDiff: bytes) -> None:
if rpc.call("consensus", "getSendDifficulty") != sendDiff.hex().upper():
raise TestError("Send Difficulty doesn't match.")
def verifyDataDifficulty(rpc: RPC, dataDiff: bytes) -> None:
if rpc.call("consensus", "getDataDifficulty") != dataDiff.hex().upper():
raise TestError("Data Difficulty doesn't match.")
