def test_create_submit_auxblock (self):
"""
Test the createauxblock / submitauxblock method pair.
"""
# Check for errors with wrong parameters.
assert_raises_rpc_error (-1, None, self.nodes[0].createauxblock)
assert_raises_rpc_error (-5, "Invalid coinbase payout address",
self.nodes[0].createauxblock,
"this_an_invalid_address")
# Fix a coinbase address and construct methods for it.
coinbaseAddr = self.nodes[0].getnewaddress ()
def create (*algo):
return self.nodes[0].createauxblock (coinbaseAddr, *algo)
submit = self.nodes[0].submitauxblock
# Run common tests.
self.test_common (create, submit)
# Ensure that the payout address is the one which we specify
hash1 = auxpow.mineAuxpowBlockWithMethods (create, submit)
hash2 = auxpow.mineAuxpowBlockWithMethods (create, submit)
self.sync_all ()
addr1 = auxpow.getCoinbaseAddr (self.nodes[1], hash1)
addr2 = auxpow.getCoinbaseAddr (self.nodes[1], hash2)
assert_equal (addr1, coinbaseAddr)
assert_equal (addr2, coinbaseAddr)
def test_getauxblock (self):
"""
Test the getauxblock method.
"""
create = self.nodes[0].getauxblock
submit = self.nodes[0].getauxblock
self.test_common (create, submit)
# Ensure that the payout address is changed from one block to the next.
hash1 = auxpow.mineAuxpowBlockWithMethods (create, submit)
hash2 = auxpow.mineAuxpowBlockWithMethods (create, submit)
self.sync_all ()
addr1 = auxpow.getCoinbaseAddr (self.nodes[1], hash1)
addr2 = auxpow.getCoinbaseAddr (self.nodes[1], hash2)
assert addr1 != addr2
info = self.nodes[0].getaddressinfo (addr1)
assert info['ismine']
info = self.nodes[0].getaddressinfo (addr2)
assert info['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