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test: let gen_return_txouts create a single large OP_RETURN output

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Transactions with more than one datacarrier (OP_RETURN) output
are never considered standard, i.e. this change is necessary in
order to to get rid of the `acceptnonstdtxn` option for some
tests.
This commit is contained in:
Sebastian Falbesoner 2022-06-29 17:42:51 +02:00
parent f319287d81
commit b1ba3ed155
1 changed files with 2 additions and 13 deletions
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15
test/functional/test_framework/util.py
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@ -502,20 +502,9 @@ def chain_transaction(node, parent_txids, vouts, value, fee, num_outputs):
# to make it large (helper for constructing large transactions). The
# total serialized size of the txouts is about 66k vbytes.
def gen_return_txouts():
# Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create
# So we have big transactions (and therefore can't fit very many into each block)
# create one script_pubkey
script_pubkey = "6a4d0200" # OP_RETURN OP_PUSH2 512 bytes
for _ in range(512):
script_pubkey = script_pubkey + "01"
# concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change
txouts = []
from .messages import CTxOut
txout = CTxOut()
txout.nValue = 0
txout.scriptPubKey = bytes.fromhex(script_pubkey)
for _ in range(128):
txouts.append(txout)
from .script import CScript, OP_RETURN
txouts = [CTxOut(nValue=0, scriptPubKey=CScript([OP_RETURN, b'\x01'*67437]))]
assert_equal(sum([len(txout.serialize()) for txout in txouts]), 67456)
return txouts