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Add assertion to check that the max locktime satisfiable under BIP113 is UINT32_MAX - 2

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Chris Stewart 2025-04-08 11:48:00 -05:00
parent 062c31b72e
commit 01d2068fb6
1 changed files with 4 additions and 4 deletions
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8
test/functional/feature_cltv.py
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@ -108,7 +108,7 @@ class BIP65Test(BitcoinTestFramework):
self.test_cltv_info(is_active=False)
self.log.info("Mining %d blocks", CLTV_HEIGHT - 2)
num_utxos = 13
num_utxos = 14
self.generate(wallet, num_utxos)
self.generate(self.nodes[0], CLTV_HEIGHT - 2 - num_utxos)
assert_equal(self.nodes[0].getblockcount(), CLTV_HEIGHT - 2)
@ -246,7 +246,7 @@ class BIP65Test(BitcoinTestFramework):
tip = block2.sha256
# 6 blocks are allowed to have UINT32_MAX block time
for i in range(6):
b = create_block(tip, create_coinbase(CLTV_HEIGHT + num + i + 2), ntime=UINT32_MAX, version=4)
b = create_block(tip, create_coinbase(CLTV_HEIGHT + num + i + 2), ntime=UINT32_MAX - 1, version=4)
b.solve()
peer.send_and_ping(msg_block(b))
tip = b.sha256
@ -256,12 +256,12 @@ class BIP65Test(BitcoinTestFramework):
# the 7th block means this block is invalid according to BIP113 (median-time-past)
block3 = create_block(tip, create_coinbase(CLTV_HEIGHT + num + 6 + 2), ntime=UINT32_MAX, version=4)
# cannot satisfy this locktime, need to be strictly greater than the median-past-time
cltv_validate(spendtx,UINT32_MAX)
cltv_validate(spendtx,UINT32_MAX - 2)
block3.vtx.append(spendtx)
block3.hashMerkleRoot = block3.calc_merkle_root()
block3.solve()
peer.send_and_ping(msg_block(block3))
self.nodes[0].assert_debug_log("time-too-old, block's timestamp is too early")
assert_equal(int(self.nodes[0].getbestblockhash(), 16), block3.sha256)
if __name__ == '__main__':
BIP65Test(__file__).main()