transaction_root_test.py

from ethereum import trie, db, utils
import rlp

# Block number 233481
# hash 0xccc6da94c2f8d222ef723db7c0469fb54790d30c31c4c176837570953a11d4b5
# tx hash root 0x94855872b7fee469b12577beb875a3ad65b479a216cbbaf9f23ab1277393b084
# contain one tx with hash 0x0d3789c1341c2edb92429f8e8f669f057be5bad2b5dba9ac52069e5b2535e696
# whose content is 0xf86f824ed5850ba43b740083015f90941df99e975f2e6c2e6945cda3a377552cb582caf688477a615df3b28800801ca09e43bb22f0458d7f3025dfa01e9f223743f8dae2c7b11070529dc2733358f0fba07bfe8c286d21839d153733328d8f48e7e7b3fe79c2f31fd2bf992b2381980f48

tx = 'f86f824ed5850ba43b740083015f90941df99e975f2e6c2e6945cda3a377552cb582caf688477a615df3b28800801ca09e43bb22f0458d7f3025dfa01e9f223743f8dae2c7b11070529dc2733358f0fba07bfe8c286d21839d153733328d8f48e7e7b3fe79c2f31fd2bf992b2381980f48'.decode('hex')
txhash = utils.sha3(tx)
assert '0d3789c1341c2edb92429f8e8f669f057be5bad2b5dba9ac52069e5b2535e696' == txhash.encode('hex')
state = trie.Trie(db.DB(), trie.BLANK_ROOT)
assert '56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421' == state.root_hash.encode('hex')  # empty trie root hash
state.update(rlp.encode(0), rlp.encode(tx))
root = state.root_hash.encode('hex')
print root
assert '94855872b7fee469b12577beb875a3ad65b479a216cbbaf9f23ab1277393b084' == root  # THIS FAILS