def test_auxpow(nodes):
"""
Test behaviour of getauxpow. Calling getauxpow should reserve
a key from the pool, but it should be released again if the
created block is not actually used. On the other hand, if the
auxpow is submitted and turned into a block, the keypool should
be drained.
"""
nodes[0].walletpassphrase('test', 12000)
nodes[0].keypoolrefill(2)
nodes[0].walletlock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].getauxblock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].generate(1)
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 1)
auxblock = nodes[0].getauxblock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 1)
target = auxpow.reverseHex(auxblock['_target'])
solved = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = nodes[0].getauxblock(auxblock['hash'], solved)
assert res
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 0)
assert_raises_jsonrpc(-12, 'Keypool ran out', nodes[0].getauxblock)
def test_auxpow(nodes):
"""
Test behaviour of getauxpow. Calling getauxpow should reserve
a key from the pool, but it should be released again if the
created block is not actually used. On the other hand, if the
auxpow is submitted and turned into a block, the keypool should
be drained.
"""
nodes[0].walletpassphrase('test', 12000)
nodes[0].keypoolrefill(1)
nodes[0].walletlock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].getauxblock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].generate(1)
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 1)
auxblock = nodes[0].getauxblock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 1)
target = auxpow.reverseHex(auxblock['_target'])
solved = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = nodes[0].getauxblock(auxblock['hash'], solved)
assert res
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 0)
try:
nodes[0].getauxblock()
raise AssertionError('Keypool should be exhausted by getauxblock')
except JSONRPCException as e:
assert(e.error['code']==-12)
def test_auxpow(nodes):
"""
Test behaviour of getauxpow. Calling getauxpow should reserve
a key from the pool, but it should be released again if the
created block is not actually used. On the other hand, if the
auxpow is submitted and turned into a block, the keypool should
be drained.
"""
nodes[0].walletpassphrase('test', 12000)
nodes[0].keypoolrefill(2)
nodes[0].walletlock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].getauxblock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].generate(1)
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 1)
auxblock = nodes[0].getauxblock()
assert_equal (nodes[0].getwalletinfo()['keypoolsize'], 1)
target = auxpow.reverseHex(auxblock['_target'])
solved = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = nodes[0].getauxblock(auxblock['hash'], solved)
assert res
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 0)
assert_raises_rpc_error (-12, 'Keypool ran out', nodes[0].getauxblock)
def test_auxpow(nodes):
"""
Test behaviour of getauxpow. Calling getauxpow should reserve
a key from the pool, but it should be released again if the
created block is not actually used. On the other hand, if the
auxpow is submitted and turned into a block, the keypool should
be drained.
"""
nodes[0].walletpassphrase('test', 12000)
nodes[0].keypoolrefill(1)
nodes[0].walletlock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].getauxblock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 2)
nodes[0].generate(1)
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 1)
auxblock = nodes[0].getauxblock()
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 1)
target = auxpow.reverseHex(auxblock['_target'])
solved = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = nodes[0].getauxblock(auxblock['hash'], solved)
assert res
assert_equal(nodes[0].getwalletinfo()['keypoolsize'], 0)
try:
nodes[0].getauxblock()
raise AssertionError('Keypool should be exhausted by getauxblock')
except JSONRPCException as e:
assert (e.error['code'] == -12)
def run_test (self):
BitcoinTestFramework.run_test (self)
# Check for difficulty reports in various RPC calls. Where the "current"
# state is involved, we get two (for each algo). Where a particular block
# is involved, we just get that block's difficulty (whatever the algo).
dual = []
dual.append (self.nodes[0].getinfo ())
dual.append (self.nodes[0].getblockchaininfo ())
dual.append (self.nodes[0].getmininginfo ())
for data in dual:
assert 'difficulty_sha256d' in data
assert 'difficulty_scrypt' in data
assert 'difficulty' not in data
bestHash = self.nodes[0].getbestblockhash ()
data = self.nodes[0].getblock (bestHash)
assert 'difficulty' in data
assert 'difficulty_sha256d' not in data
assert 'difficulty_scrypt' not in data
# Check getdifficulty RPC call.
diffSHA = self.nodes[0].getdifficulty (0)
assert_equal (diffSHA, dual[0]['difficulty_sha256d'])
diffScrypt = self.nodes[0].getdifficulty (1)
assert_equal (diffScrypt, dual[0]['difficulty_scrypt'])
try:
self.nodes[0].getdifficulty ()
raise AssertionError ("getdifficulty without arg accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -1)
# Generate a few blocks with SHA256D. Ensure that they are, indeed,
# with the correct algo.
arr1 = self.nodes[0].generate (5)
arr2 = self.nodes[0].generate (5, 0)
for blk in arr1 + arr2:
data = self.nodes[0].getblock (blk)
assert_equal (data['algo'], 0)
# Generate a few blocks with scrypt. Ensure the algo parameter.
# Furthermore, at least one of them "should" have an obviously high
# hash value. It may, of course, happen that this is not the case,
# but the probability for that is negligible (about 2^(-20)).
arr = self.nodes[0].generate (20, 1)
foundHigh = False
for blk in arr:
data = self.nodes[0].getblock (blk)
assert_equal (data['algo'], 1)
if blk[0] in '89abcdef':
foundHigh = True
assert foundHigh
# Verify check for algo parameter.
for p in [-1, 2]:
try:
self.nodes[0].generate (1, p)
raise AssertionError ("invalid algo parameter accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -8)
# Briefly test generatetoaddress as well.
for algo in [0, 1]:
addr = self.nodes[0].getnewaddress ()
blkhash = self.nodes[0].generatetoaddress (1, addr, algo)
assert_equal (1, len (blkhash))
data = self.nodes[0].getblock(blkhash[0])
assert_equal (algo, data['algo'])
coinbaseTx = data['tx'][0]
utxo = self.nodes[0].gettxout (coinbaseTx, 0)
assert_equal ([addr], utxo['scriptPubKey']['addresses'])
# Check updates of the returned block (or not) with getauxblock.
# Note that this behaviour needs not necessarily be exactly as tested,
# but the test ensures that no change is introduced accidentally.
auxblock1 = self.nodes[0].getauxblock ()
auxblock2 = self.nodes[0].getauxblock (0)
assert_equal (auxblock1['hash'], auxblock2['hash'])
auxblock2 = self.nodes[0].getauxblock (1)
auxblock3 = self.nodes[0].getauxblock (1)
assert_equal (auxblock2['hash'], auxblock3['hash'])
assert auxblock2['hash'] != auxblock1['hash']
auxblock3 = self.nodes[0].getauxblock ()
assert auxblock1['hash'] != auxblock3['hash']
# Use getauxblock with explicit algo to mine a SHA256D block.
# Assert that this works (the block is saved) even if we request
# another scrypt block before.
auxblock = self.nodes[0].getauxblock ()
assert_equal (auxblock['chainid'], 6)
assert_equal (auxblock['algo'], 0)
dummy = self.nodes[0].getauxblock (1)
assert_equal (dummy['chainid'], 2)
assert_equal (dummy['algo'], 1)
# Solve the auxpow requested before.
curcnt = self.nodes[0].getblockcount ()
target = auxpow.reverseHex (auxblock['_target'])
apow = auxpow.computeAuxpow (auxblock['hash'], target, True)
res = self.nodes[0].getauxblock (auxblock['hash'], apow)
assert res
# Check submitted data.
assert_equal (self.nodes[0].getblockcount (), curcnt + 1)
data = self.nodes[0].getblock (auxblock['hash'])
assert_equal (data['algo'], 0)
# Mine an scrypt auxpow. Since there is no built-in Python
# function to scrypt, we do it differently: Simply try submitting
# until the block is accepted. Since we need on average 2 trials,
# this is no big hit.
trials = 0
curcnt = self.nodes[0].getblockcount ()
ok = False
while not ok:
if trials > 100:
raise AssertionError ("failed to merge-mine scrypt auxpow")
trials += 1
# Force an update of the block so we get a new trial.
self.nodes[0].getauxblock (0)
auxblock = self.nodes[0].getauxblock (1)
target = auxpow.reverseHex (auxblock['_target'])
apow = auxpow.computeAuxpow (auxblock['hash'], target, False)
ok = self.nodes[0].getauxblock (auxblock['hash'], apow)
print "Found scrypt block after %d trials." % trials
# Check submitted auxblock.
assert_equal (self.nodes[0].getblockcount (), curcnt + 1)
data = self.nodes[0].getblock (auxblock['hash'])
assert_equal (data['algo'], 1)
def run_test(self):
# Check for difficulty reports in various RPC calls. Where the "current"
# state is involved, we get two (for each algo). Where a particular block
# is involved, we just get that block's difficulty (whatever the algo).
dual = []
dual.append(self.nodes[0].getblockchaininfo())
dual.append(self.nodes[0].getmininginfo())
for data in dual:
assert 'difficulty_sha256d' in data
assert 'difficulty_scrypt' in data
assert 'difficulty' not in data
bestHash = self.nodes[0].getbestblockhash()
data = self.nodes[0].getblock(bestHash)
assert 'difficulty' in data
assert 'difficulty_sha256d' not in data
assert 'difficulty_scrypt' not in data
# Check getdifficulty RPC call.
diffSHA = self.nodes[0].getdifficulty(0)
assert_equal(diffSHA, dual[0]['difficulty_sha256d'])
diffScrypt = self.nodes[0].getdifficulty(1)
assert_equal(diffScrypt, dual[0]['difficulty_scrypt'])
assert_raises_jsonrpc(-1, None, self.nodes[0].getdifficulty)
# Generate a few blocks with SHA256D. Ensure that they are, indeed,
# with the correct algo.
arr1 = self.nodes[0].generate(5)
arr2 = self.nodes[0].generate(5, 0)
for blk in arr1 + arr2:
data = self.nodes[0].getblock(blk)
assert_equal(data['algo'], 0)
# Generate a few blocks with scrypt. Ensure the algo parameter.
# Furthermore, at least one of them "should" have an obviously high
# hash value. It may, of course, happen that this is not the case,
# but the probability for that is negligible (about 2^(-20)).
arr = self.nodes[0].generate(20, 1)
foundHigh = False
for blk in arr:
data = self.nodes[0].getblock(blk)
assert_equal(data['algo'], 1)
if blk[0] in '89abcdef':
foundHigh = True
assert foundHigh
# Verify check for algo parameter.
for p in [-1, 2]:
assert_raises_jsonrpc(-8, 'invalid algo', self.nodes[0].generate,
1, p)
# Briefly test generatetoaddress as well.
for algo in [0, 1]:
addr = self.nodes[0].getnewaddress()
blkhash = self.nodes[0].generatetoaddress(1, addr, algo)
assert_equal(1, len(blkhash))
data = self.nodes[0].getblock(blkhash[0])
assert_equal(algo, data['algo'])
coinbaseTx = data['tx'][0]
utxo = self.nodes[0].gettxout(coinbaseTx, 0)
assert_equal([addr], utxo['scriptPubKey']['addresses'])
# Check updates of the returned block (or not) with aux mining.
# Note that this behaviour needs not necessarily be exactly as tested,
# but the test ensures that no change is introduced accidentally.
coinbaseAddr = self.nodes[0].getnewaddress()
auxblock1 = self.nodes[0].createauxblock(coinbaseAddr)
auxblock2 = self.nodes[0].createauxblock(coinbaseAddr, 0)
assert_equal(auxblock1['hash'], auxblock2['hash'])
auxblock2 = self.nodes[0].createauxblock(coinbaseAddr, 1)
auxblock3 = self.nodes[0].createauxblock(coinbaseAddr, 1)
assert_equal(auxblock2['hash'], auxblock3['hash'])
assert auxblock2['hash'] != auxblock1['hash']
auxblock3 = self.nodes[0].createauxblock(coinbaseAddr)
assert auxblock1['hash'] != auxblock3['hash']
# Use createauxblock with explicit algo to mine a SHA256D block.
# Assert that this works (the block is saved) even if we request
# another scrypt block before.
auxblock = self.nodes[0].createauxblock(coinbaseAddr)
assert_equal(auxblock['chainid'], 6)
assert_equal(auxblock['algo'], 0)
dummy = self.nodes[0].createauxblock(coinbaseAddr, 1)
assert_equal(dummy['chainid'], 2)
assert_equal(dummy['algo'], 1)
# Solve the auxpow requested before.
curcnt = self.nodes[0].getblockcount()
target = auxpow.reverseHex(auxblock['_target'])
apow = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = self.nodes[0].submitauxblock(auxblock['hash'], apow)
assert res
# Check submitted data.
assert_equal(self.nodes[0].getblockcount(), curcnt + 1)
data = self.nodes[0].getblock(auxblock['hash'])
assert_equal(data['algo'], 0)
# Mine an scrypt auxpow. Since there is no built-in Python
# function to scrypt, we do it differently: Simply try submitting
# until the block is accepted. Since we need on average 2 trials,
# this is no big hit.
trials = 0
curcnt = self.nodes[0].getblockcount()
ok = False
while not ok:
if trials > 100:
raise AssertionError("failed to merge-mine scrypt auxpow")
trials += 1
# Force an update of the block so we get a new trial.
self.nodes[0].createauxblock(coinbaseAddr, 0)
auxblock = self.nodes[0].createauxblock(coinbaseAddr, 1)
target = auxpow.reverseHex(auxblock['_target'])
apow = auxpow.computeAuxpow(auxblock['hash'], target, False)
ok = self.nodes[0].submitauxblock(auxblock['hash'], apow)
print("Found scrypt block after %d trials." % trials)
# Check submitted auxblock.
assert_equal(self.nodes[0].getblockcount(), curcnt + 1)
data = self.nodes[0].getblock(auxblock['hash'])
assert_equal(data['algo'], 1)
def run_test (self):
BitcoinTestFramework.run_test (self)
# Generate a block so that we are not "downloading blocks".
self.nodes[0].generate (1)
# Compare basic data of getauxblock to getblocktemplate.
auxblock = self.nodes[0].getauxblock ()
blocktemplate = self.nodes[0].getblocktemplate ()
assert_equal (auxblock['coinbasevalue'], blocktemplate['coinbasevalue'])
assert_equal (auxblock['bits'], blocktemplate['bits'])
assert_equal (auxblock['height'], blocktemplate['height'])
assert_equal (auxblock['previousblockhash'], blocktemplate['previousblockhash'])
# Compare target and take byte order into account.
target = auxblock['_target']
reversedTarget = auxpow.reverseHex (target)
assert_equal (reversedTarget, blocktemplate['target'])
# Verify data that can be found in another way.
assert_equal (auxblock['chainid'], 1)
assert_equal (auxblock['height'], self.nodes[0].getblockcount () + 1)
assert_equal (auxblock['previousblockhash'], self.nodes[0].getblockhash (auxblock['height'] - 1))
# Calling again should give the same block.
auxblock2 = self.nodes[0].getauxblock ()
assert_equal (auxblock2, auxblock)
# If we receive a new block, the old hash will be replaced.
self.sync_all ()
self.nodes[1].generate (1)
self.sync_all ()
auxblock2 = self.nodes[0].getauxblock ()
assert auxblock['hash'] != auxblock2['hash']
try:
self.nodes[0].getauxblock (auxblock['hash'], "x")
raise AssertionError ("invalid block hash accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -8)
# Invalid format for auxpow.
try:
self.nodes[0].getauxblock (auxblock2['hash'], "x")
raise AssertionError ("malformed auxpow accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -1)
# Invalidate the block again, send a transaction and query for the
# auxblock to solve that contains the transaction.
self.nodes[0].generate (1)
addr = self.nodes[1].getnewaddress ()
txid = self.nodes[0].sendtoaddress (addr, 1)
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [txid])
auxblock = self.nodes[0].getauxblock ()
blocktemplate = self.nodes[0].getblocktemplate ()
target = blocktemplate['target']
# Compute invalid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, False)
res = self.nodes[0].getauxblock (auxblock['hash'], apow)
assert not res
# Compute and submit valid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, True)
res = self.nodes[0].getauxblock (auxblock['hash'], apow)
assert res
# Make sure that the block is indeed accepted.
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [])
height = self.nodes[1].getblockcount ()
assert_equal (height, auxblock['height'])
assert_equal (self.nodes[1].getblockhash (height), auxblock['hash'])
# Call getblock and verify the auxpow field.
data = self.nodes[1].getblock (auxblock['hash'])
assert 'auxpow' in data
auxJson = data['auxpow']
assert_equal (auxJson['index'], 0)
assert_equal (auxJson['parentblock'], apow[-160:])
# Check that previous blocks don't have 'auxpow' in their getblock JSON.
oldHash = self.nodes[1].getblockhash (100)
data = self.nodes[1].getblock (oldHash)
assert 'auxpow' not in data
# Check that it paid correctly to the first node.
t = self.nodes[0].listtransactions ("", 1)
assert_equal (len (t), 1)
t = t[0]
assert_equal (t['category'], "immature")
assert_equal (t['blockhash'], auxblock['hash'])
assert t['generated']
assert t['amount'] >= Decimal ("25")
assert_equal (t['confirmations'], 1)
# Verify the coinbase script. Ensure that it includes the block height
# to make the coinbase tx unique. The expected block height is around
# 200, so that the serialisation of the CScriptNum ends in an extra 00.
# The vector has length 2, which makes up for 02XX00 as the serialised
# height. Check this.
blk = self.nodes[1].getblock (auxblock['hash'])
tx = self.nodes[1].getrawtransaction (blk['tx'][0], 1)
coinbase = tx['vin'][0]['coinbase']
assert_equal ("02%02x00" % auxblock['height'], coinbase[0 : 6])
# Ensure that the payout address is changed from one block to the next.
addr1 = self.getCoinbaseAddr (auxblock['hash'])
newHash = auxpow.mineAuxpowBlock (self.nodes[0])
self.sync_all ()
addr2 = self.getCoinbaseAddr (newHash)
assert addr1 != addr2
valid = self.nodes[0].validateaddress (addr1)
assert valid['ismine']
valid = self.nodes[0].validateaddress (addr2)
assert valid['ismine']
def run_test(self):
# Generate a block so that we are not "downloading blocks".
self.nodes[0].generate(1)
# specify coinbase output
coinbaseAddress = self.nodes[0].getnewaddress()
#
# check params
#
# missing address
assert_raises_jsonrpc(-1, None, self.nodes[0].createauxblock)
# invalid address
assert_raises_jsonrpc(-8, "Invalid coinbase payout address",
self.nodes[0].createauxblock,
"this_a_invalid_address")
# Verify data that can be found in another way.
auxblock = self.nodes[0].createauxblock(coinbaseAddress)
assert_equal(auxblock['chainid'], 1)
assert_equal(auxblock['height'], self.nodes[0].getblockcount() + 1)
assert_equal(auxblock['previousblockhash'],
self.nodes[0].getblockhash(auxblock['height'] - 1))
# Calling again should give the same block.
auxblock2 = self.nodes[0].createauxblock(coinbaseAddress)
assert_equal(auxblock2, auxblock)
# If we receive a new block, the old hash will be replaced.
self.sync_all()
self.nodes[1].generate(1)
self.sync_all()
auxblock2 = self.nodes[0].createauxblock(coinbaseAddress)
assert auxblock['hash'] != auxblock2['hash']
# Invalid format for auxpow.
assert_raises_jsonrpc(-8, 'block hash unknown',
self.nodes[0].submitauxblock, auxblock['hash'],
"x")
assert_raises_jsonrpc(-1, None, self.nodes[0].submitauxblock,
auxblock2['hash'], "x")
# Invalidate the block again, send a transaction and query for the
# auxblock to solve that contains the transaction.
self.nodes[0].generate(1)
addr = self.nodes[1].getnewaddress()
txid = self.nodes[0].sendtoaddress(addr, 1)
self.sync_all()
assert_equal(self.nodes[1].getrawmempool(), [txid])
auxblock = self.nodes[0].createauxblock(coinbaseAddress)
target = auxpow.reverseHex(auxblock['_target'])
# Compute invalid auxpow.
apow = auxpow.computeAuxpow(auxblock['hash'], target, False)
res = self.nodes[0].submitauxblock(auxblock['hash'], apow)
assert not res
# Compute and submit valid auxpow.
apow = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = self.nodes[0].submitauxblock(auxblock['hash'], apow)
assert res
# Make sure that the block is indeed accepted.
self.sync_all()
assert_equal(self.nodes[1].getrawmempool(), [])
height = self.nodes[1].getblockcount()
assert_equal(height, auxblock['height'])
assert_equal(self.nodes[1].getblockhash(height), auxblock['hash'])
# Call getblock and verify the auxpow field.
data = self.nodes[1].getblock(auxblock['hash'])
assert 'auxpow' in data
auxJson = data['auxpow']
assert_equal(auxJson['index'], 0)
assert_equal(auxJson['chainindex'], 0)
assert_equal(auxJson['merklebranch'], [])
assert_equal(auxJson['chainmerklebranch'], [])
assert_equal(auxJson['parentblock'], apow[-160:])
# Also previous blocks should have 'auxpow', since all blocks (also
# those generated by "generate") are merge-mined.
oldHash = self.nodes[1].getblockhash(100)
data = self.nodes[1].getblock(oldHash)
assert 'auxpow' in data
# Check that it paid correctly to the first node.
t = self.nodes[0].listtransactions("", 1)
assert_equal(len(t), 1)
t = t[0]
assert_equal(t['category'], "immature")
assert_equal(t['blockhash'], auxblock['hash'])
assert t['generated']
assert t['amount'] >= Decimal("25")
assert_equal(t['confirmations'], 1)
# Verify the coinbase script. Ensure that it includes the block height
# to make the coinbase tx unique. The expected block height is around
# 200, so that the serialisation of the CScriptNum ends in an extra 00.
# The vector has length 2, which makes up for 02XX00 as the serialised
# height. Check this.
blk = self.nodes[1].getblock(auxblock['hash'])
tx = self.nodes[1].getrawtransaction(blk['tx'][0], 1)
coinbase = tx['vin'][0]['coinbase']
assert_equal("02%02x00" % auxblock['height'], coinbase[0:6])
# Ensure that the payout address is the one which we specify
addr1 = auxpow.getCoinbaseAddr(self.nodes[1], auxblock['hash'])
assert addr1 == coinbaseAddress
newHash = auxpow.mineAuxpowBlock2(self.nodes[0], coinbaseAddress)
self.sync_all()
addr2 = auxpow.getCoinbaseAddr(self.nodes[1], newHash)
assert addr2 == coinbaseAddress
def test_common (self, create, submit):
"""
Common test code that is shared between the tests for getauxblock and the
createauxblock / submitauxblock method pair.
"""
# Verify data that can be found in another way.
auxblock = create ()
assert_equal (auxblock['chainid'], 6)
assert_equal (auxblock['algo'], 0)
assert_equal (auxblock['height'], self.nodes[0].getblockcount () + 1)
assert_equal (auxblock['previousblockhash'],
self.nodes[0].getblockhash (auxblock['height'] - 1))
# Calling again should give the same block.
# Try using the (default) algo parameter.
auxblock2 = create (0)
assert_equal (auxblock2, auxblock)
# If we receive a new block, the old hash will be replaced.
self.sync_all ()
self.nodes[1].generate (1)
self.sync_all ()
auxblock2 = create ()
assert auxblock['hash'] != auxblock2['hash']
assert_raises_rpc_error (-8, 'block hash unknown', submit,
auxblock['hash'], "x")
# Invalid format for auxpow.
assert_raises_rpc_error (-1, None, submit,
auxblock2['hash'], "x")
# Invalidate the block again, send a transaction and query for the
# auxblock to solve that contains the transaction.
self.nodes[0].generate (1)
addr = self.nodes[1].getnewaddress ()
txid = self.nodes[0].sendtoaddress (addr, 1)
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [txid])
auxblock = create ()
target = auxpow.reverseHex (auxblock['_target'])
# Compute invalid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, False)
res = submit (auxblock['hash'], apow)
assert not res
# Compute and submit valid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, True)
res = submit (auxblock['hash'], apow)
assert res
# Make sure that the block is indeed accepted.
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [])
height = self.nodes[1].getblockcount ()
assert_equal (height, auxblock['height'])
assert_equal (self.nodes[1].getblockhash (height), auxblock['hash'])
# Call getblock and verify the auxpow field.
data = self.nodes[1].getblock (auxblock['hash'])
assert 'auxpow' in data
auxJson = data['auxpow']
assert_equal (auxJson['index'], 0)
assert_equal (auxJson['chainindex'], 0)
assert_equal (auxJson['merklebranch'], [])
assert_equal (auxJson['chainmerklebranch'], [])
assert_equal (auxJson['parentblock'], apow[-160:])
# Also previous blocks should have 'auxpow', since all blocks (also
# those generated by "generate") are merge-mined.
oldHash = self.nodes[1].getblockhash (100)
data = self.nodes[1].getblock (oldHash)
assert 'auxpow' in data
# Check that it paid correctly to the first node.
t = self.nodes[0].listtransactions ("*", 1)
assert_equal (len (t), 1)
t = t[0]
assert_equal (t['category'], "immature")
assert_equal (t['blockhash'], auxblock['hash'])
assert t['generated']
assert_greater_than_or_equal (t['amount'], Decimal ("0.05"))
assert_equal (t['confirmations'], 1)
# Verify the coinbase script. Ensure that it includes the block height
# to make the coinbase tx unique. The expected block height is around
# 200, so that the serialisation of the CScriptNum ends in an extra 00.
# The vector has length 2, which makes up for 02XX00 as the serialised
# height. Check this. (With segwit, the height is different, so we skip
# this for simplicity.)
if not self.options.segwit:
blk = self.nodes[1].getblock (auxblock['hash'])
tx = self.nodes[1].getrawtransaction (blk['tx'][0], 1)
coinbase = tx['vin'][0]['coinbase']
assert_equal ("02%02x00" % auxblock['height'], coinbase[0 : 6])
def run_test (self):
BitcoinTestFramework.run_test (self)
# Generate a block so that we are not "downloading blocks".
self.nodes[0].generate (1)
# We used to compare to getblocktemplate, but this call is gone
# now completely for merge-mining.
# Verify data that can be found in another way.
auxblock = self.nodes[0].getauxblock ()
assert_equal (auxblock['chainid'], 1)
assert_equal (auxblock['height'], self.nodes[0].getblockcount () + 1)
assert_equal (auxblock['previousblockhash'], self.nodes[0].getblockhash (auxblock['height'] - 1))
# Calling again should give the same block.
auxblock2 = self.nodes[0].getauxblock ()
assert_equal (auxblock2, auxblock)
# If we receive a new block, the old hash will be replaced.
self.sync_all ()
self.nodes[1].generate (1)
self.sync_all ()
auxblock2 = self.nodes[0].getauxblock ()
assert auxblock['hash'] != auxblock2['hash']
try:
self.nodes[0].getauxblock (auxblock['hash'], "x")
raise AssertionError ("invalid block hash accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -8)
# Invalid format for auxpow.
try:
self.nodes[0].getauxblock (auxblock2['hash'], "x")
raise AssertionError ("malformed auxpow accepted")
except JSONRPCException as exc:
assert_equal (exc.error['code'], -1)
# Invalidate the block again, send a transaction and query for the
# auxblock to solve that contains the transaction.
self.nodes[0].generate (1)
addr = self.nodes[1].getnewaddress ()
txid = self.nodes[0].sendtoaddress (addr, 1)
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [txid])
auxblock = self.nodes[0].getauxblock ()
target = auxpow.reverseHex (auxblock['_target'])
# Compute invalid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, False)
res = self.nodes[0].getauxblock (auxblock['hash'], apow)
assert not res
# Compute and submit valid auxpow.
apow = auxpow.computeAuxpow (auxblock['hash'], target, True)
res = self.nodes[0].getauxblock (auxblock['hash'], apow)
assert res
# Make sure that the block is indeed accepted.
self.sync_all ()
assert_equal (self.nodes[1].getrawmempool (), [])
height = self.nodes[1].getblockcount ()
assert_equal (height, auxblock['height'])
assert_equal (self.nodes[1].getblockhash (height), auxblock['hash'])
# Call getblock and verify the auxpow field.
data = self.nodes[1].getblock (auxblock['hash'])
assert 'auxpow' in data
auxJson = data['auxpow']
assert_equal (auxJson['index'], 0)
assert_equal (auxJson['chainindex'], 0)
assert_equal (auxJson['merklebranch'], [])
assert_equal (auxJson['chainmerklebranch'], [])
assert_equal (auxJson['parentblock'], apow[-160:])
# Also previous blocks should have 'auxpow', since all blocks (also
# those generated by "generate") are merge-mined.
oldHash = self.nodes[1].getblockhash (100)
data = self.nodes[1].getblock (oldHash)
assert 'auxpow' in data
# Check that it paid correctly to the first node.
t = self.nodes[0].listtransactions ("", 1)
assert_equal (len (t), 1)
t = t[0]
assert_equal (t['category'], "immature")
assert_equal (t['blockhash'], auxblock['hash'])
assert t['generated']
assert t['amount'] >= Decimal ("25")
assert_equal (t['confirmations'], 1)
# Verify the coinbase script. Ensure that it includes the block height
# to make the coinbase tx unique. The expected block height is around
# 200, so that the serialisation of the CScriptNum ends in an extra 00.
# The vector has length 2, which makes up for 02XX00 as the serialised
# height. Check this.
blk = self.nodes[1].getblock (auxblock['hash'])
tx = self.nodes[1].getrawtransaction (blk['tx'][0], 1)
coinbase = tx['vin'][0]['coinbase']
assert_equal ("02%02x00" % auxblock['height'], coinbase[0 : 6])
# Ensure that the payout address is changed from one block to the next.
addr1 = self.getCoinbaseAddr (auxblock['hash'])
newHash = auxpow.mineAuxpowBlock (self.nodes[0])
self.sync_all ()
addr2 = self.getCoinbaseAddr (newHash)
assert addr1 != addr2
valid = self.nodes[0].validateaddress (addr1)
assert valid['ismine']
valid = self.nodes[0].validateaddress (addr2)
assert valid['ismine']
def run_test(self):
BitcoinTestFramework.run_test(self)
# Generate a block so that we are not "downloading blocks".
self.nodes[0].generate(1)
# Compare basic data of getauxblock to getblocktemplate.
auxblock = self.nodes[0].getauxblock()
blocktemplate = self.nodes[0].getblocktemplate()
assert_equal(auxblock['coinbasevalue'], blocktemplate['coinbasevalue'])
assert_equal(auxblock['bits'], blocktemplate['bits'])
assert_equal(auxblock['height'], blocktemplate['height'])
assert_equal(auxblock['previousblockhash'],
blocktemplate['previousblockhash'])
# Compare target and take byte order into account.
target = auxblock['_target']
reversedTarget = auxpow.reverseHex(target)
assert_equal(reversedTarget, blocktemplate['target'])
# Verify data that can be found in another way.
assert_equal(auxblock['chainid'], 1)
assert_equal(auxblock['height'], self.nodes[0].getblockcount() + 1)
assert_equal(auxblock['previousblockhash'],
self.nodes[0].getblockhash(auxblock['height'] - 1))
# Calling again should give the same block.
auxblock2 = self.nodes[0].getauxblock()
assert_equal(auxblock2, auxblock)
# If we receive a new block, the old hash will be replaced.
self.sync_all()
self.nodes[1].generate(1)
self.sync_all()
auxblock2 = self.nodes[0].getauxblock()
assert auxblock['hash'] != auxblock2['hash']
try:
self.nodes[0].getauxblock(auxblock['hash'], "x")
raise AssertionError("invalid block hash accepted")
except JSONRPCException as exc:
assert_equal(exc.error['code'], -8)
# Invalid format for auxpow.
try:
self.nodes[0].getauxblock(auxblock2['hash'], "x")
raise AssertionError("malformed auxpow accepted")
except JSONRPCException as exc:
assert_equal(exc.error['code'], -1)
# Invalidate the block again, send a transaction and query for the
# auxblock to solve that contains the transaction.
self.nodes[0].generate(1)
addr = self.nodes[1].getnewaddress()
txid = self.nodes[0].sendtoaddress(addr, 1)
self.sync_all()
assert_equal(self.nodes[1].getrawmempool(), [txid])
auxblock = self.nodes[0].getauxblock()
blocktemplate = self.nodes[0].getblocktemplate()
target = blocktemplate['target']
# Compute invalid auxpow.
apow = auxpow.computeAuxpow(auxblock['hash'], target, False)
res = self.nodes[0].getauxblock(auxblock['hash'], apow)
assert not res
# Compute and submit valid auxpow.
apow = auxpow.computeAuxpow(auxblock['hash'], target, True)
res = self.nodes[0].getauxblock(auxblock['hash'], apow)
assert res
# Make sure that the block is indeed accepted.
self.sync_all()
assert_equal(self.nodes[1].getrawmempool(), [])
height = self.nodes[1].getblockcount()
assert_equal(height, auxblock['height'])
assert_equal(self.nodes[1].getblockhash(height), auxblock['hash'])
# Call getblock and verify the auxpow field.
data = self.nodes[1].getblock(auxblock['hash'])
assert 'auxpow' in data
auxJson = data['auxpow']
assert_equal(auxJson['index'], 0)
assert_equal(auxJson['parentblock'], apow[-160:])
# Check that previous blocks don't have 'auxpow' in their getblock JSON.
oldHash = self.nodes[1].getblockhash(100)
data = self.nodes[1].getblock(oldHash)
assert 'auxpow' not in data
# Check that it paid correctly to the first node.
t = self.nodes[0].listtransactions("", 1)
assert_equal(len(t), 1)
t = t[0]
assert_equal(t['category'], "immature")
assert_equal(t['blockhash'], auxblock['hash'])
assert t['generated']
assert t['amount'] >= Decimal("25")
assert_equal(t['confirmations'], 1)
# Verify the coinbase script. Ensure that it includes the block height
# to make the coinbase tx unique. The expected block height is around
# 200, so that the serialisation of the CScriptNum ends in an extra 00.
# The vector has length 2, which makes up for 02XX00 as the serialised
# height. Check this.
blk = self.nodes[1].getblock(auxblock['hash'])
tx = self.nodes[1].getrawtransaction(blk['tx'][0], 1)
coinbase = tx['vin'][0]['coinbase']
assert_equal("02%02x00" % auxblock['height'], coinbase[0:6])
