6ee32aaaca4a46d42594bc16479868c76cc67fd8 test: signet tool genpsbt and solvepsbt commands (Sjors Provoost)
0a99d99fe4cb8432945d37c8e5d221715c538e4f signet: miner skips PSBT step for OP_TRUE (Sjors Provoost)
cdfb70e5a6a9235ea18dd2cb8148b757902dc08e signet: split decode_psbt miner helper (Sjors Provoost)
Pull request description:
[BIP325](https://github.com/bitcoin/bips/blob/master/bip-0325.mediawiki) mentions the following rule:
> In the special case where an empty solution is valid (ie scriptSig and scriptWitness are both empty) this additional commitment can optionally be left out. This special case is to allow non-signet-aware block generation code to be used to test a custom signet chain where the challenge is trivially true.
Such a signet can be created using e.g. `-signetchallenge=51` (`OP_TRUE`). However `contrib/signet/miner` won't omit the commitment.
This PR improves the miner by skipping the PSBT for known trivial scripts (just `OP_TRUE` and trivial pushes for now). This prevents it from appending the 4 byte signet header to the witness commitment, as allowed by the above rule.
---
Previously the script would fail with `PSBT signing failed`, making it difficult to mine. This is no longer the case.
ACKs for top commit:
achow101:
ACK 6ee32aaaca4a46d42594bc16479868c76cc67fd8
theStack:
re-ACK 6ee32aaaca4a46d42594bc16479868c76cc67fd8
danielabrozzoni:
ACK 6ee32aaaca4a46d42594bc16479868c76cc67fd8
Tree-SHA512: e47fbf471f2909286a6c1c073799ea388b9c19551afcce96cf9af45cc48d25c02f1e48e08861a88b604361e2c107a759d5baf393da8a37360de419f31651758a
b1ea542ae651cec433910d8c727abc41f17a7678 test: test MAX_SCRIPT_SIZE for block validity (Greg Sanders)
Pull request description:
I don't believe there are direct tests for this.
ACKs for top commit:
achow101:
ACK b1ea542ae651cec433910d8c727abc41f17a7678
TheCharlatan:
ACK b1ea542ae651cec433910d8c727abc41f17a7678
theStack:
ACK b1ea542ae651cec433910d8c727abc41f17a7678
Tree-SHA512: 1d7d3eab9c54977844bf2ca1aa403b070aae0f818db2fb5cae367d1c4d12f1e403b6fdec224af769a2ebb648cbca8bfd0d7df5db2a89fccf256c9c244484eba2
a5ac43d98d1ad3ebed934f2c50208a85aae17e5e doc: Add release notes describing bitcoin wrapper executable (Ryan Ofsky)
258bda80c009a25d1f1bdeffccf9ed1ffde29cb2 doc: Mention bitcoin wrapper executable in documentation (Ryan Ofsky)
d2739d75c911c8bf73a4d3005c57add1ae4a67ae build: add bitcoin.exe to windows installer (Sjors Provoost)
ba649c00063a43b59a63db17b509179a658a8d9a ci: Run multiprocess tests through wrapper executable (Ryan Ofsky)
29bdd743bb843f8b8ed2e426b6df36e9d7e54215 test: Support BITCOIN_CMD environment variable (Ryan Ofsky)
9c8c68891b43053acfe7b8eb9d2e0d2bcfcb4e1e multiprocess: Add bitcoin wrapper executable (Ryan Ofsky)
5076d20fdb70a4bfafc4bdfe8293e347cb6bfa78 util: Add cross-platform ExecVp and GetExePath functions (Ryan Ofsky)
Pull request description:
Intended to make bitcoin command line features more discoverable and allow installing new multiprocess binaries in libexec/ instead of bin/ so they don't cause confusion.
Idea and implementation of this were discussed in https://github.com/bitcoin/bitcoin/issues/30983.
---
Initial implementation of this feature is deliberately minimal so the UX can evolve in response to feedback and there are not too many details to debate and discuss in a single PR. But many improvements are possible or planned:
- Adding manpage and bash completions.
- Showing nicer error messages that detect if an executable isn't installed and suggest how to fix [(comment)](https://github.com/bitcoin/bitcoin/pull/31375#discussion_r2073194474)
- Showing wrapper command lines in subcommand in help output [(comment)](https://github.com/bitcoin/bitcoin/pull/31375#discussion_r2077800405). This could be done conditionally as suggested in the comment or be unconditional.
- Showing wrapper command lines in subcommand error output. There is a bitcoin-cli error pointed out in [(comment)](https://github.com/bitcoin/bitcoin/pull/31375#discussion_r2091152243) that is needlessly confusing.
- Integrating help so `bitcoin help subcommand` invokes `bitcoin subcommand -h`. `bitcoin -h subcommand` should also be supported and be equivalent [(comment)](https://github.com/bitcoin/bitcoin/pull/31375#discussion_r2093116725)
- Adding support for `bitcoin-util` subcommands. Ideal interface would probably be more like `bitcoin grind` not `bitcoin util grind` but this has been punted for now. Supporting subcommands directly would require some ArgsManager modifications
- Adding a dedicated python functional test for the wrapper. Right now there is some CI coverage by setting the `BITCOIN_CMD` variable, but this doesn't cover things like the help output and version output, and support for different directory layouts.
- Better `--multiprocess` (`-m`) / `--monolithic` (`-M`) default selection. Right now, default is monolithic but it probably makes sense to chose more intelligently depending on whether -ipc options are enabled and what binaries are available.
- Maybe parsing `bitcoin.conf` and supporting options to control wrapper behavior like custom locations or preferences or aliases.
- Better command command line usability. Allow combining short options like (`-ah`). Allow fuzzy matching of subcommands or suggestions if you misspell. (suggested by stickies in review club)
- Not directly related to this PR but `bitcoin-cli named` implementation used by the wrapper should do a better job disambiguating named arguments from base64 arguments ending in = as pointed out in [(comment)](https://github.com/bitcoin/bitcoin/pull/31375#discussion_r2091886628)
---
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/issues/28722). A review club meeting for it took place in https://bitcoincore.reviews/31375
ACKs for top commit:
Sjors:
utACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
achow101:
ACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
vasild:
ACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
theStack:
ACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
ismaelsadeeq:
fwiw my last review implied an ACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
hodlinator:
ACK a5ac43d98d1ad3ebed934f2c50208a85aae17e5e
Tree-SHA512: 570e6a4ff8bd79ef6554da3d01f36c0a7c6d2dd7dace8f8732eca98f4a8bc2284474a9beadeba783114fe2f3dd08b2041b3da7753bae0b7f881ec50668cb821f
7bc64a8859c3644fdf2eeff59f72a778ae60ea3f test: properly check for per-tx sigops limit (Sebastian Falbesoner)
Pull request description:
Currently the per-tx sigops limit standardness check (bounded by `MAX_STANDARD_TX_SIGOPS_COST`, throwing "bad-txns-too-many-sigops" if exceeded):
3f83c744ac/src/validation.cpp (L925-L927)
is only indirectly tested with the much higher per-block consensus limit (`MAX_BLOCK_SIGOPS_COST`):
3f83c744ac/test/functional/data/invalid_txs.py (L236-L242)
I.e. an increase in the per-tx limit up to the per-block one would still pass all of our tests. Refine that by splitting up the invalid tx template `TooManySigops` in a per-block and a per-tx template.
The involved functional tests taking use of these templates are `feature_block.py` and `p2p_invalid_txs.py`. Can be tested by applying e.g.
```diff
diff --git a/src/policy/policy.h b/src/policy/policy.h
index 2151ec13dd..e5766d2a55 100644
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -37,7 +37,7 @@ static constexpr unsigned int MIN_STANDARD_TX_NONWITNESS_SIZE{65};
/** Maximum number of signature check operations in an IsStandard() P2SH script */
static constexpr unsigned int MAX_P2SH_SIGOPS{15};
/** The maximum number of sigops we're willing to relay/mine in a single tx */
-static constexpr unsigned int MAX_STANDARD_TX_SIGOPS_COST{MAX_BLOCK_SIGOPS_COST/5};
+static constexpr unsigned int MAX_STANDARD_TX_SIGOPS_COST{MAX_BLOCK_SIGOPS_COST/5 + 4};
/** Default for -incrementalrelayfee, which sets the minimum feerate increase for mempool limiting or replacement **/
static constexpr unsigned int DEFAULT_INCREMENTAL_RELAY_FEE{1000};
/** Default for -bytespersigop */
diff --git a/test/functional/mempool_accept.py b/test/functional/mempool_accept.py
```
where the tests succeed on master, but fail on this PR.
(Found by diving deeper into the jungle of current sig-ops limit, as preparation for reviewing the [BIP 54](https://github.com/bitcoin/bips/blob/master/bip-0054.md) draft and related preparatory PRs like #32521).
ACKs for top commit:
fjahr:
tACK 7bc64a8859c3644fdf2eeff59f72a778ae60ea3f
tapcrafter:
tACK 7bc64a8859c3644fdf2eeff59f72a778ae60ea3f
darosior:
ACK 7bc64a8859c3644fdf2eeff59f72a778ae60ea3f
instagibbs:
crACK 7bc64a8859c3644fdf2eeff59f72a778ae60ea3f
Tree-SHA512: 1365409349664a76a1d46b2fa358c0d0609fb17fffdd549423d22b61749481282c928be3c2fb428725735c82d319b4279f703bde01e94e4aec14bab206abb8cf
b104d442277090337ce405d92f1398b7cc9bcdb7 test: Remove RPCOverloadWrapper (Ava Chow)
4d32c19516fdb65b364638fa088b8d7167b438b6 test: Replace importpubkey (Ava Chow)
fe838dd391be669ccd0765b95f81c25fecfd3636 test: Replace usage of addmultisigaddress (Ava Chow)
d3142077794f4e910d3cdc749020d725e30feb24 test: Replace usage of importaddress (Ava Chow)
fcc457573f9b39e6f173a4f51c45d7dbb47e7ab0 test: Replace importprivkey with wallet_importprivkey (Ava Chow)
94c87bbbd06eb9a57930b9f59315533cfbe8f460 test: Remove unnecessary importprivkey from wallet_createwallet (Ava Chow)
Pull request description:
`RPCOverloadWrapper` implemented overloads for legacy wallet only RPCs so that the same function call could be used within tests for both legacy wallets and descriptor wallets. With legacy wallets now removed, there is no need to continue to have these overloads.
For `importaddress`, `addmultisigaddress`, and `importpubkey`, the uses of these are converted to `importdescriptors`.
For `importprivkey`, a new helper function `wallet_imporprivkey` is introduced that does what the overload did. This is mainly to reduce verbosity as `importprivkey` was more widely used throughout the tests.
Some tests that used these RPCs are now also no longer relevant and have been removed.
ACKs for top commit:
Sjors:
ACK b104d442277090337ce405d92f1398b7cc9bcdb7
pablomartin4btc:
cr ACK b104d442277090337ce405d92f1398b7cc9bcdb7
rkrux:
ACK b104d442277090337ce405d92f1398b7cc9bcdb7
w0xlt:
ACK b104d44227
Tree-SHA512: ded2f73829e2ce28466d4a9738eb382783ad990daee5d1859dbc4d354e6f8eec0c483ed5ecb1287fe0dd24ac332065b733a30d71b126b841bd7cd49e9a094b6d
Currently the per-tx sigops limit standardness check (bounded by
`MAX_STANDARD_TX_SIGOPS_COST`, throwing "bad-txns-too-many-sigops"
if exceeded) is only indirectly tested with the much higher per-block
consensus limit (`MAX_BLOCK_SIGOPS_COST`), i.e. an increase in the
limit would still pass all tests. Refine that by splitting up the invalid
tx template `TooManySigops` in a per-block and a per-tx one.
The involved functional tests taking use of these templates are
`feature_block.py` and `p2p_invalid_txs.py`.
Would otherwise cause an OverflowError in feature_framework_startup_failures.py when calling subprocess.run() with 60 * factor.
Fixes#32506
Co-authored-by: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>
75a185ea3db3177e8e479ee61a39bcb51e08d9a6 test: add skip_if_running_under_valgrind() (fanquake)
Pull request description:
Enable it in the USDT tests. The context (from 0xB10C):
> every time the tracepoint is reached a SIGTRAP is fired.
> No matter the tracepoint contents, even with an empty one.
> Valgrind intercepts SIGTRAP and aborts.
See discussion in #32374.
ACKs for top commit:
maflcko:
lgtm ACK 75a185ea3db3177e8e479ee61a39bcb51e08d9a6
willcl-ark:
ACK 75a185ea3db3177e8e479ee61a39bcb51e08d9a6
Tree-SHA512: 7f45c3049ab39cc514024067bd6ac26598e99202c114b48459834c26c2e1273fa58af693878298e628a10c561b954850e49e76b39567b771bb0c0534a063a524
4b241867567203b204823a4558c2aa5767acf028 test: add test for decoding PSBT with MuSig2 PSBT key types (BIP 373) (Sebastian Falbesoner)
8ba245cb8318c9be375ac2fb2a3e7ded875b4408 test: add constants for MuSig2 PSBT key types (BIP 373) (Sebastian Falbesoner)
Pull request description:
This PR is a follow-up to #31247 (see https://github.com/bitcoin/bitcoin/pull/31247#pullrequestreview-2427834909) and adds a functional test for decoding PSBTs (using the `decodepsbt` RPC) with MuSig2 per-input and per-output types. The first commit adds the new MuSig2 key types to the test frameworks and extends the PSBT serialization to cope with lists of bytestrings.
ACKs for top commit:
achow101:
ACK 4b241867567203b204823a4558c2aa5767acf028
rkrux:
re-ACK 4b24186
Tree-SHA512: f12919f71b3fff74df1d7ddaa8db455b1b139f7abd51d7f3fa5d750fc7dd613454b438c4e0dedad679476d414fa1da43ef1121e486b0bdfd97d5ef8bdf37f060
Enable it in the USDT tests. The context (from 0xB10C):
> every time the tracepoint is reached a SIGTRAP is fired.
> No matter the tracepoint contents, even with an empty one.
> Valgrind intercepts SIGTRAP and aborts.
See discussion in #32374.
Support new BITCOIN_CMD environment variable in functional test to be able to
test the new bitcoin wrapper executable and run other commands through it
instead of calling them directly.
Co-authored-by: Sjors Provoost <sjors@sprovoost.nl>
a58cb3b1c12c8cb75a87375c50f94c4605bb805d qa: sanity check mined block have their coinbase timelocked to height (Antoine Poinsot)
8f2078af6a55448c003b3f7f3021955fbb351caa miner: timelock coinbase transactions (Antoine Poinsot)
788aeebf343526760fa8f3ed969ac3713212a5b6 qa: use prev height as nLockTime for coinbase txs created in unit tests (Antoine Poinsot)
c76dbe9b8b6f03b761a0ef97e1b8cd133b934714 qa: timelock coinbase transactions created in fuzz targets (Antoine Poinsot)
9c94069d8b6cf67a24eb03c51230a4f2b2bf2d64 contrib: timelock coinbase transactions in signet miner (Antoine Poinsot)
a5f52cfcc400ad0adb41a78c65b8abb971e0d622 qa: timelock coinbase transactions created in functional tests (Antoine Poinsot)
Pull request description:
The Consensus Cleanup soft fork proposal includes enforcing that coinbase transactions set their
nLockTime field to the block height minus 1, as well as their nSequence such as to not disable the
timelock. If such a fork were to be activated by Bitcoin users, miners need to be ready to produce
compliant blocks at the risk of losing substantial amounts mining would-be invalid blocks. As miners
are unfamously slow to upgrade, it's good to make this change as early as possible.
Although Bitcoin Core's GBT implementation does not provide the `coinbasetxn` field, and mining
pool software crafts the coinbase on its own, updating the Bitcoin Core mining code is a first step
toward convincing pools to update their (often closed source) code. A possible followup is also to
introduce new fields to GBT. In addition, this first step also makes it possible to test future
Consensus Cleanup changes.
The commit making the change also updates a bunch of seemingly-unrelated tests. This is because those tests were asserting error messages based on the txid of transactions involved, and changing the coinbase transaction structure necessarily changes the txid of all tests' transactions.
ACKs for top commit:
Sjors:
Code review ACK a58cb3b1c12c8cb75a87375c50f94c4605bb805d
achow101:
ACK a58cb3b1c12c8cb75a87375c50f94c4605bb805d
TheCharlatan:
Re-ACK a58cb3b1c12c8cb75a87375c50f94c4605bb805d
Tree-SHA512: a2aae009a187eb760d34435f518a895ee76c6b02a667eb030ddf6bd584da6e8eae2737d974dbf81a928d60c07bcb4820f055adc067e18d8819640db0240bb513
importprivkey was a legacy wallet only RPC which had a helper for
descriptor wallets in tests. Add wallet_importprivkey helper and use it
wherever importprivkey is used (other than backward compatibility tests)
10845cd7cc89fc83b4ee844dc577b391720bba9c qa: Add feature_framework_startup_failures.py (Hodlinator)
28e282ef9ae94ede4aace6b97ff18c66cb72a001 qa: assert_raises_message() - Stop assuming certain structure for exceptions (Hodlinator)
1f639efca5e71a0ff208415d94e408a74778d4db qa: Work around Python socket timeout issue (Hodlinator)
9b24a403fae4b896ff7705519bd48c877b4e621b qa: Only allow calling TestNode.stop() after connecting (Hodlinator)
6ad21b4c0114029d16d334bf8d437834708a295e qa: Include ignored errors in RPC connection timeout (Hodlinator)
879243e81fd55f54739fbdae4d5b8666f5acb9a9 qa refactor: wait_for_rpc_connection - Treat OSErrors the same (Hodlinator)
Pull request description:
Improves handling of startup errors in functional tests and puts tests in place to ensure knock-on errors don't creep in.
- `wait_for_rpc_connection()` now appends specific failures leading up to the `Unable to connect to bitcoind` error to that error message:
`[node 0] Unable to connect to bitcoind after 60s (ignored errors: {'missing_credentials': 1, 'OSError.ECONNREFUSED': 239}, latest error: ConnectionRefusedError(111, 'Connection refused'))`
- Fixes Windows Python issue where `socket.timeout` exceptions end up with unset `errno`-fields.
- Also adds comments, refactors code, improves logging.
The underlying purpose is to ensure developer efficiency in finding root causes of test failures.
Prior iterations of the PR partially focused on fixing the same issue as #31620.
Originally inspired by #30390.
### Testing
Can be tested by reverting either faf2f2c654d9aa18b2f49a157956f9ab0fce302a or fae3bf6b870eb0f9cddd1adac82ba72890806ae3 from #31620, or the "qa: Avoid calling stop-RPC if not connected" from this PR, and running *feature_framework_startup_failures.py*.
ACKs for top commit:
l0rinc:
ACK 10845cd7cc89fc83b4ee844dc577b391720bba9c
ryanofsky:
Code review ACK 10845cd7cc89fc83b4ee844dc577b391720bba9c. Only changes since last review were adding a new commit tweaking assert_raises_message(), extending the new test to have a self-check, and to pass through all options to child tests instead of a hardcoded list of options. I left some cleanup suggestions below but they are not important.
Tree-SHA512: f0235c5cbb6d1bb85d8dc5de492a08a34f6edc83499cbf0a5f9a3824809ff84635888c62c9c01101e3cc9ef9f1cdee2c9ab6537fea6feeb005b29f428caf8b22
Also, support serialization of lists of byte-strings as PSBTMap values,
which will be simply concatenated without any compact-size prefixes
(neither for the individual items nor for the size of the list).
Removes all legacy wallet specific functional tests.
Also removes the --descriptor and --legacy-wallet options as these are
no longer necessary with the legacy wallet removed.
fa86190e6ed2aeda7bcceaf96f52403816bcd751 rpc: Allow fullrbf fee bump (MarcoFalke)
Pull request description:
The RPCs (psbt)bumpfee, and the GUI, reject fee bumps when BIP 125 signalling is absent in the transaction even when the mempool and other RPCs allow them. Fix the confusion by allowing the fee bump.
This is done after fullrbf is always on (https://github.com/bitcoin/bitcoin/pull/30592)
ACKs for top commit:
1440000bytes:
reACK fa86190e6e
achow101:
ACK fa86190e6ed2aeda7bcceaf96f52403816bcd751
w0xlt:
ACK fa86190e6e
rkrux:
reACK fa86190e6ed2aeda7bcceaf96f52403816bcd751
glozow:
ACK fa86190e6ed2aeda7bcceaf96f52403816bcd751
Tree-SHA512: b2ffe8dcadbe71e9be767a16cf8aa0bf383c2de7aa1aee9438d125f444e24f3f7e4f02ddb28981bd3b8b645b6a24a407b4ad6bb0b21946ae637e78f6386e05bf
Observed on local machine running Windows / Python v3.13.1 when overriding rpc_timeout to small values (5- seconds). Next commit performs such overrides.
(Still tolerate calling it on a no longer (self.)running node, as in a node that has been queried for is_node_stopped() and modified state before returning True).
Tests should not attempt to use the non-functioning RPC interface to call stop() unless wait_for_connections() has succeeded.
No longer log and suppress http.client.CannotSendRequest as a consequence of stop()-RPC, as error conditions causing this knock-on issue are now guarded against before the call.
When an RPC connection attempt with bitcoind times out, include which ignored errors occurred in the exception message.
May provide clues of what has gone wrong.
ConnectionResetError is an OSError as well (ECONNRESET), no reason to have a separate except-block for it.
Also improves comments for other exceptions and make condition above more Pythonic.
Also, fix the incorrect documention of the 'replaceable' RPC argument
with respect to sequence number handling. The docs were incorrect
before, so the fix could be extracted, but it seems fine to include here
as well.
7bb83f6718110cb3a29e72522fdc5515db21c7d0 test: create assert_not_equal util and add to where imports are needed (kevkevin)
Pull request description:
In the functional tests there are lots of cases where we assert != which we now swap with assert_not_equal to be more readable
This is motivated/uses logic from this PR which was closed https://github.com/bitcoin/bitcoin/pull/28528
This partially helps https://github.com/bitcoin/bitcoin/issues/23119
I've broken it up to just `assert_not_equal` to keep the PR smaller as suggested in https://github.com/bitcoin/bitcoin/pull/28528#issuecomment-1959945805
I can create follow up PR's if this is wanted
ACKs for top commit:
hodlinator:
re-ACK 7bb83f6718110cb3a29e72522fdc5515db21c7d0
ryanofsky:
Code review ACK 7bb83f6718110cb3a29e72522fdc5515db21c7d0. Only change since last review is fixing error message formatting and passing it as a keyword argument
janb84:
Re-ACK [7bb83f6](7bb83f6718)
Tree-SHA512: de09f41a690033a5b61e6f861d3bd69a32b889d6655a28fbc0d5cfac9f7ec9c642432967d33913970882b4cfdd47bdd377d0ddc44e25976cbaa49f7f9d8f7b10
aa7a898c236eb519aaf546afee2b9c2b6dfdea1f doc: use testnet4 in developer docs (Sjors Provoost)
6c217d22fdc978cac0f970cf2296a9fa1e00ee97 test: use testnet4 in argsman test (Sjors Provoost)
7c200ece80575d399a552f5757c07ac2c8c7ec6c test: use testnet4 in key_io_valid.json (Sjors Provoost)
d424bd59413c8ffc7a263635e5b9882497d39fed test: drop unused testnet3 magic bytes (Sjors Provoost)
8cfc09fafe59adae4904a21589736de93a00ad2d test: cover testnet4 magic in assumeutxo.py (Sjors Provoost)
4281e3603a2eadefc8535b863128a05cf3a5a75f zmq: use testnet4 in zmq_sub.py example (Sjors Provoost)
Pull request description:
In preparation for dropping testnet3 entirely in #31974 this PR migrates a few things to testnet4:
* the ZMQ examples
* developer docs
* various unit tests
* the snapshot magic byte check in `feature_assumeutxo.py`
It drops `testnet3` from `MAGIC_BYTES` in the test framework, since no test uses it.
ACKs for top commit:
fjahr:
re-ACK aa7a898c236eb519aaf546afee2b9c2b6dfdea1f
maflcko:
lgtm ACK aa7a898c236eb519aaf546afee2b9c2b6dfdea1f 🔊
hodlinator:
re-ACK aa7a898c236eb519aaf546afee2b9c2b6dfdea1f
Tree-SHA512: 235f74273234e8fb2aedf0017dea5c16bb9813ec7a1f89a51abe85691f09830a5ead834115d7db0936e12e55a40bc81888856a8002fe507c1474407e77f8b9fb
In the functional tests there are lots of cases where we assert != which
this new util will replace, we also are adding the imports and the new assertion
ca55613fd1596c3e9e5c3cc5c4a7ea4591841fc0 test: Add functional test for bitcoin-chainstate (TheCharlatan)
3f9c716e7fc76a6fb5935dc3cd548097e58da978 test: Fix docstring for cmake migration (TheCharlatan)
Pull request description:
While the `bitcoin-chainstate` utility is not shipped in a release, it is the only current utility directly using the bitcoin kernel library. Adding a simple test for it is useful for checking that the library is actually usable. The test is also useful in future to demonstrate that the `bitcoin-chainstate` binary using the API for the kernel library introduced in #30595 actually works and offers similar features.
ACKs for top commit:
laanwj:
Code review ACK ca55613fd1596c3e9e5c3cc5c4a7ea4591841fc0
maflcko:
ACK ca55613fd1596c3e9e5c3cc5c4a7ea4591841fc0 🎭
kevkevinpal:
ACK ca55613fd1596c3e9e5c3cc5c4a7ea4591841fc0
Tree-SHA512: 282627f5fac868a84aab9962ef2cbd3a8d3941d9f9dc2a3f26db1e7706ffa8051637ab5f8372676800e426e077ca40449a9e3e42a003048472339d81ed81bca8
a82829f37e1ed298b6c2b6d2859d4bea65fe3dcc test: simplify (w)txid checks by avoiding .calc_sha256 calls (Sebastian Falbesoner)
346a099fc1e282c8b53d740d65999d8866d17953 test: avoid unneeded hash -> uint256 -> hash roundtrips (Sebastian Falbesoner)
Pull request description:
In the functional test framework we currently have a strong tendency to treat and store identifiers that result from hash functions (e.g. (w)txids, block hashes) as integers, which seems an unnatural and confusing choice. Hashes are just pseudo-random sequences of bytes, and there is usually no need to apply integer operations on them; the only exceptions I could think of is PoW-verification of block hashes with the less-than (`<`) operator, or interpreting the byte-string as scalar in the EC-context for e.g. key derivation.
I'd hence argue that most uses of `ser_uint256`/`uint256_from_str` and txid conversions via `int(txid/blockhash, 16)` are potential code smells and should be reduced to a minimum long-term if possible. This PR is a first step into this direction, intentionally kept small with (what I think) uncontroversial changes for demonstration purposes, to check out if other contributors are interested in this. A next step could be to change the classes of primitives (CTransaction, CBlock etc.) and network messages (msg_) to store hash results as actual bytes (maybe in a class wrapping the bytes that offers conversion from/to human-readable strings [1], for easier interaction with RPC calls and debug outputs) rather than ints. But that would of course need larger, potentially more controversial changes, and its questionable if its really worth the effort.
[1] unfortunately, txids and block hashes are shown to user in reverse byte order, so e.g. a txid_bytes->txid_str conversion is not just a simple `txid_bytes.hex()`, but a `txid_bytes[::-1].hex()`
ACKs for top commit:
maflcko:
review ACK a82829f37e1ed298b6c2b6d2859d4bea65fe3dcc 🐘
rkrux:
Concept and utACK a82829f37e1ed298b6c2b6d2859d4bea65fe3dcc
ryanofsky:
Code review ACK a82829f37e1ed298b6c2b6d2859d4bea65fe3dcc. Nice changes, and sorry about the false bug report
Tree-SHA512: bb0465802d743a495207800f922b65f49ed0d20552f95bb0bee764944664092aad74812e29df6e01ef40bcb8f9bc6c84c7e9cbbe6f008ee1a14d94ed88e698b4
