def doit(raw_txn):
# verify our understanding of a TXN (and esp its outputs) matches
# the same values as what bitcoind generates
try:
return bitcoind.decoderawtransaction(B2A(raw_txn))
except ConnectionResetError:
# bitcoind sleeps on us sometimes, give it another chance.
return bitcoind.decoderawtransaction(B2A(raw_txn))
def doit(hex_txn, fee, num_warn=0, change_outs=None, dests=[]):
# verify our understanding of a TXN (and esp its outputs) matches
# the same values as what bitcoind generates
try:
decode = bitcoind.decoderawtransaction(hex_txn)
except ConnectionResetError:
# bitcoind sleeps on us sometimes, give it another chance.
decode = bitcoind.decoderawtransaction(hex_txn)
#print("Bitcoin code says:", end=''); pprint(decode)
if dests:
# check we got right destination address(es)
for outn, expect_addr in dests:
assert decode['vout'][outn]['scriptPubKey']['addresses'][
0] == expect_addr
# leverage bitcoind's transaction decoding
ex = dict(
lock_time=decode['locktime'],
had_witness=False, # input txn doesn't have them, typical?
num_inputs=len(decode['vin']),
num_outputs=len(decode['vout']),
miner_fee=U2SAT(fee),
warnings_expected=num_warn,
total_value_out=sum(U2SAT(i['value']) for i in decode['vout']),
destinations=[(U2SAT(i['value']),
i['scriptPubKey']['addresses'][0])
for i in decode['vout']],
)
if change_outs is not None:
ex['change_outs'] = set(change_outs)
# need this for reliability
time.sleep(0.01)
# check we understood it right
rv = sim_exec('import main; main.EXPECT = %r; ' % ex)
if rv: pytest.fail(rv)
rv = sim_execfile('devtest/check_decode.py')
if rv: pytest.fail(rv)
print(" [checks out against bitcoind] ")
return decode
