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-rwxr-xr-xtest/functional/rpc_txoutproof.py23
1 files changed, 23 insertions, 0 deletions
diff --git a/test/functional/rpc_txoutproof.py b/test/functional/rpc_txoutproof.py
index c52a7397dc..e5a63f0c46 100755
--- a/test/functional/rpc_txoutproof.py
+++ b/test/functional/rpc_txoutproof.py
@@ -6,6 +6,8 @@
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
+from test_framework.mininode import FromHex, ToHex
+from test_framework.messages import CMerkleBlock
class MerkleBlockTest(BitcoinTestFramework):
def set_test_params(self):
@@ -78,6 +80,27 @@ class MerkleBlockTest(BitcoinTestFramework):
# We can't get a proof if we specify transactions from different blocks
assert_raises_rpc_error(-5, "Not all transactions found in specified or retrieved block", self.nodes[2].gettxoutproof, [txid1, txid3])
+ # Now we'll try tweaking a proof.
+ proof = self.nodes[3].gettxoutproof([txid1, txid2])
+ assert txid1 in self.nodes[0].verifytxoutproof(proof)
+ assert txid2 in self.nodes[1].verifytxoutproof(proof)
+
+ tweaked_proof = FromHex(CMerkleBlock(), proof)
+
+ # Make sure that our serialization/deserialization is working
+ assert txid1 in self.nodes[2].verifytxoutproof(ToHex(tweaked_proof))
+
+ # Check to see if we can go up the merkle tree and pass this off as a
+ # single-transaction block
+ tweaked_proof.txn.nTransactions = 1
+ tweaked_proof.txn.vHash = [tweaked_proof.header.hashMerkleRoot]
+ tweaked_proof.txn.vBits = [True] + [False]*7
+
+ for n in self.nodes:
+ assert not n.verifytxoutproof(ToHex(tweaked_proof))
+
+ # TODO: try more variants, eg transactions at different depths, and
+ # verify that the proofs are invalid
if __name__ == '__main__':
MerkleBlockTest().main()