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Merge bitcoin/bitcoin#28666: test: assumeutxo file with unknown block hash

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621db2f004 test: assumeutxo file with unknown block hash (Fabian Jahr)

Pull request description:

  Takes care of one of the open Todos in the assumeutxo functional test. Since an unknown block could be any hash, I simply chose one placeholder, it could also be a random string though.

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    lgtm ACK 621db2f004
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    Code review ACK 621db2f004

Tree-SHA512: ee0438ce619f7348c6f88e39b0ea7ddddb8832956d9034ecc795c6033d5d905c09d11b7d0d5afc38231b2fd091ea7c1bd0a0be99d9c32c4e6357a25d76294142
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Ryan Ofsky 2023-10-18 08:15:31 -04:00
commit 655dc716aa
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1 changed files with 8 additions and 7 deletions
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15
test/functional/feature_assumeutxo.py
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@ -19,7 +19,6 @@ Interesting test cases could be loading an assumeutxo snapshot file with:
- TODO: Valid hash but invalid snapshot file (bad coin height or
bad other serialization)
- TODO: Valid snapshot file, but referencing an unknown block
- TODO: Valid snapshot file, but referencing a snapshot block that turns out to be
invalid, or has an invalid parent
- TODO: Valid snapshot file and snapshot block, but the block is not on the
@ -71,12 +70,14 @@ class AssumeutxoTest(BitcoinTestFramework):
bad_snapshot_path = valid_snapshot_path + '.mod'
self.log.info(" - snapshot file refering to a block that is not in the assumeutxo parameters")
bad_snapshot_block_hash = self.nodes[0].getblockhash(SNAPSHOT_BASE_HEIGHT - 1)
with open(bad_snapshot_path, 'wb') as f:
# block hash of the snapshot base is stored right at the start (first 32 bytes)
f.write(bytes.fromhex(bad_snapshot_block_hash)[::-1] + valid_snapshot_contents[32:])
error_details = f"assumeutxo block hash in snapshot metadata not recognized ({bad_snapshot_block_hash})"
assert_raises_rpc_error(-32603, f"Unable to load UTXO snapshot, {error_details}", self.nodes[1].loadtxoutset, bad_snapshot_path)
prev_block_hash = self.nodes[0].getblockhash(SNAPSHOT_BASE_HEIGHT - 1)
bogus_block_hash = "0" * 64 # Represents any unknown block hash
for bad_block_hash in [bogus_block_hash, prev_block_hash]:
with open(bad_snapshot_path, 'wb') as f:
# block hash of the snapshot base is stored right at the start (first 32 bytes)
f.write(bytes.fromhex(bad_block_hash)[::-1] + valid_snapshot_contents[32:])
error_details = f"assumeutxo block hash in snapshot metadata not recognized ({bad_block_hash})"
assert_raises_rpc_error(-32603, f"Unable to load UTXO snapshot, {error_details}", self.nodes[1].loadtxoutset, bad_snapshot_path)
self.log.info(" - snapshot file with wrong number of coins")
valid_num_coins = int.from_bytes(valid_snapshot_contents[32:32 + 8], "little")