This makes the debug output mostly the same for -par=1 and parallel validation runs. Of course,
parallel validation is non-deterministic in what error it may encounter first if there are
multiple issues. Also, the way certain script-related and non-script-related checks are
performed differs between the two modes still, which may result in discrepancies.
The check type function now needs to return a std::optional<R> for some type R,
and the check queue overall will return std::nullopt if all individual checks
return that, or one of the non-nullopt values if there is at least one.
For most tests, we use R=int, but for the actual validation code, we make it return
the ScriptError.
409d0d629378c3e23388ed31516376ad1ae536b5 test: enable running individual independent functional test methods (ismaelsadeeq)
Pull request description:
- Some test methods in the functional test framework are independent and do not require any prior context or setup in `run_test`.
- This commit adds a new option for running these specific methods within a test file, allowing them to be executed individually without running the entire test suite.
- Using this option reduces the time you need to wait before the test you are interested in starts executing.
- The functionality added by this PR can be achieved manually by commenting out code, but having a pragmatic option to do this is more convenient.
Note: Running test methods that require arguments or context will fail.
**Example Usage**:
```zsh
build/test/functional/feature_reindex.py --test_methods continue_reindex_after_shutdown
```
```zsh
build/test/functional/feature_config_args.py --test_methods test_log_buffer test_args_log test_connect_with_seednode
```
ACKs for top commit:
maflcko:
review ACK 409d0d629378c3e23388ed31516376ad1ae536b5
rkrux:
reACK 409d0d629378c3e23388ed31516376ad1ae536b5
ryanofsky:
Code review ACK 409d0d629378c3e23388ed31516376ad1ae536b5. This seems like a good step towards making it easy to run independent tests quickly. I think ideally there would be some naming convention or @ annotation added to test methods that can run independently, so the test framework could provide more functionality like being able to list test methods, being able to show command lines to quickly reproduce problems when tests fails, and calling test methods automatically instead of requiring individual tests to call them. But these ideas are all compatible with the new `--test_methods` option
Tree-SHA512: b0daac7c3b322e6fd9b946962335d8279e8cb004ff76f502c8d597b9c4b0073840945be198a79d44c5aaa64bda421429829d5c84ceeb8c6139eb6ed079a35878
19f49c7489d226e1cebc754fbbae3e4bebc360af doc: Use more precise anchor link to codesigning docs (Jeremy Rand)
Pull request description:
The "Codesigning" section is what users presumably are looking for when they follow this link.
ACKs for top commit:
fanquake:
ACK 19f49c7489d226e1cebc754fbbae3e4bebc360af
Tree-SHA512: 0e25cf0d7160db7d564d67d3e3ac614f9bd209b2399414f1278fa01cfc1ff827aa8311f7c1c2666924d5ac2dc23fe9bc258b80ed8025d5b8d5b11bcf1d12b28c
62f6d9e1a48e3b63c504996e914075cacfdcaedc test: simple ordering optimization to reduce runtime (tdb3)
Pull request description:
Noticed in #31371 that the position of `mempool_ephemeral_dust` within `BASE_SCRIPTS` was lengthening total test runtime. Instead of moving only that test, looked for others to move to reduce runtime.
This is a quick optimization that was found to reduce overall functional test runtime of up to around 20% (depending on jobs and machine characteristics). Since it seems like test ordering could be done in many different ways, with many variables, and bike shedding could creep in, a relatively straightforward approach was taken for now that minimized changes to test_runner.
ACKs for top commit:
maflcko:
lgtm ACK 62f6d9e1a48e3b63c504996e914075cacfdcaedc
TheCharlatan:
ACK 62f6d9e1a48e3b63c504996e914075cacfdcaedc
Tree-SHA512: 6f93fbe4de3fce202383d9f84aa0e96961af3de3c02b8cab73589339d701f32c5e1b57a191eeebf4b06b5cd7a82617f63f24110732940be1a5a4d9237813a570
The `ccoins_add` and `ccoins_write` tests check the actual exception error messages now instead of just that they fail for the given parameters.
This enables us testing different exceptions in a more fine-grained way in later changes.
8bf1b3039cb5b396e7e6d3ac075656952edd56d5 doc: Use more precise anchor links to Xcode SDK extraction (Jeremy Rand)
Pull request description:
The "SDK Extraction" section is what users presumably are looking for when they follow these links.
ACKs for top commit:
fanquake:
ACK 8bf1b3039cb5b396e7e6d3ac075656952edd56d5
Tree-SHA512: 38669a6b171aa102bb80f5b3a343bd6a067c6921c454f6d18087c5add8016eea2ba8196036f9968f0a9b7df1f642c96ff6c657338c32e775beb04038497cde1f
faa16ed4b9edd126b5a2b0c13994f18273096efc test: Add missing node.setmocktime(self.mocktime) to p2p_ibd_stalling.py (MarcoFalke)
Pull request description:
This was forgotten by myself in commit fa5b58ea01fac1adb6336b8b6b5217193295c695.
This time, there is a diff to test, which fails on current master and passes with this pull request.
```diff
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index e503a68382..16438ebd08 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -112,9 +112,9 @@ static_assert(MAX_BLOCKTXN_DEPTH <= MIN_BLOCKS_TO_KEEP, "MAX_BLOCKTXN_DEPTH too
* want to make this a per-peer adaptive value at some point. */
static const unsigned int BLOCK_DOWNLOAD_WINDOW = 1024;
/** Block download timeout base, expressed in multiples of the block interval (i.e. 10 min) */
-static constexpr double BLOCK_DOWNLOAD_TIMEOUT_BASE = 1;
+static constexpr double BLOCK_DOWNLOAD_TIMEOUT_BASE = .05; // 30 sec
/** Additional block download timeout per parallel downloading peer (i.e. 5 min) */
-static constexpr double BLOCK_DOWNLOAD_TIMEOUT_PER_PEER = 0.5;
+static constexpr double BLOCK_DOWNLOAD_TIMEOUT_PER_PEER = 0.;
/** Maximum number of headers to announce when relaying blocks with headers message.*/
static const unsigned int MAX_BLOCKS_TO_ANNOUNCE = 8;
/** Minimum blocks required to signal NODE_NETWORK_LIMITED */
diff --git a/test/functional/p2p_ibd_stalling.py b/test/functional/p2p_ibd_stalling.py
index fa07873929..f8cdd8998c 100755
--- a/test/functional/p2p_ibd_stalling.py
+++ b/test/functional/p2p_ibd_stalling.py
@@ -82,6 +82,7 @@ class P2PIBDStallingTest(BitcoinTestFramework):
# Need to wait until 1023 blocks are received - the magic total bytes number is a workaround in lack of an rpc
# returning the number of downloaded (but not connected) blocks.
bytes_recv = 172761 if not self.options.v2transport else 169692
+ time.sleep(31);
self.wait_until(lambda: self.total_bytes_recv_for_blocks() == bytes_recv)
self.all_sync_send_with_ping(peers)
ACKs for top commit:
brunoerg:
ACK faa16ed4b9edd126b5a2b0c13994f18273096efc
Tree-SHA512: 5a670e2dcf828ac83b721a3e20d897744cca50080b0583a8460a0d0c7bf2c2c988cf7e35f688dde6a3349f1c21cc83a16ea5242ed06a59d59a04130416690737
We don't need so much access to the internals of CCoinsCacheEntry, since many tests are just exercising invalid combinations this way.
This implies that `AddFlags` has private access now.
CCoinsCacheEntry provided general access to its internal flags state, even though in reality it could only be clean, fresh, dirty or fresh|dirty.
After it got dirtied we couldn't set the state back to clean by AddFlags(0) - tests were explicitly checking against that.
This commit cleans up the public interface to make this distinction cleaner and invalid behavior impossible instead of just checked by tests.
This includes the removal of redundant `inline` qualifiers (we're inside a struct).
Also renamed `self` to `pair` to simplify the upcoming commits.
Also modernized `EmplaceCoinInternalDANGER` since it was already modified.
Co-authored-by: Andrew Toth <andrewstoth@gmail.com>
ab5c63edccea7957e2c7b3b9d8b04655a7f82f22 cmake: Build `secp256k1` only when required (Hennadii Stepanov)
76a3a540a4c3ff42f84c4701cb2ca6e910a24f50 cmake: Ensure script correctness when no targets are specified (Hennadii Stepanov)
Pull request description:
When no build targets are specified, it is reasonable to expect the configuration step to succeed and produce a build system that does not build any targets.
This PR updates the code to ensure this behaviour:
```
$ cmake -B build -G "Ninja" -DBUILD_DAEMON=OFF -DBUILD_CLI=OFF -DBUILD_TX=OFF -DBUILD_UTIL=OFF -DENABLE_WALLET=OFF -DBUILD_TESTS=OFF
$ cmake --build build
ninja: no work to do.
```
ACKs for top commit:
TheCharlatan:
ACK ab5c63edccea7957e2c7b3b9d8b04655a7f82f22
tdb3:
light test ACK ab5c63edccea7957e2c7b3b9d8b04655a7f82f22
Tree-SHA512: 1b13f406c58b02768d9ba831413aeae1d7e03659e7101de8e598f906ba220f479ac06707965c96a14468ce4ba49011a1ab9adee9cee34ab1e8622f690b94dad8
16b140f225a24b9075ef6e4cf6f0788bf96ace5f doc: correct libfuzzer-nosan preset flag (Niklas Gögge)
Pull request description:
`--prefix` is not the correct option for using a preset (it's not an option at all).
ACKs for top commit:
maflcko:
lgtm ACK 16b140f225a24b9075ef6e4cf6f0788bf96ace5f
Tree-SHA512: 8c5fad4f8573bd9ef972447b2847ede61a3b6af9650a599f6ff7e90a2c009e4422715164261b424c08170c9e179cce241a3ca31ddc234f446316f24fc2c353b1
b73d3319377a4c9d7e2dd279c3d106002585bc36 dbwrapper: Bump max file size to 32 MiB (Maciej S. Szmigiero)
Pull request description:
The default max file size for LevelDB is 2 MiB, which results in the LevelDB compaction code generating ~4 disk cache flushes per second when syncing with the Bitcoin network.
These disk cache flushes are triggered by `fdatasync()` syscall issued by the LevelDB compaction code when reaching the max file size.
If the database is on a HDD this flush rate brings the whole system to a crawl.
It also results in very slow throughput since 2 MiB * 4 flushes per second is about 8 MiB / second max throughput, while even an old HDD can pull 100 - 200 MiB / second streaming throughput.
Increase the max file size for LevelDB to 128 MiB instead so the flush rate drops to about 1 flush / 2 seconds and the system no longer gets so sluggish.
The max file size value chosen also matches the `MAX_BLOCKFILE_SIZE` file size setting already used by the block storage.
ACKs for top commit:
l0rinc:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
davidgumberg:
ACK b73d331937
andrewtoth:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
TheCharlatan:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
willcl-ark:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
tdb3:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
laanwj:
ACK b73d3319377a4c9d7e2dd279c3d106002585bc36
Tree-SHA512: 5d8fb9ad1ea643fb3e42a9c59f6fc90cc5cc3b82c06d9b8d59de3a5a926fabaeb78efb51b608b1e7925f49d82dfcbd5b72c552993879789f33201efe57c278f3
935973b315fa3b99f5e79b360bcb66f473bb7b95 Remove `src/config` directory (Hennadii Stepanov)
Pull request description:
The `src/config` directory has not been used since the migration to CMake, which disables in-source builds.
ACKs for top commit:
TheCharlatan:
ACK 935973b315fa3b99f5e79b360bcb66f473bb7b95
BrandonOdiwuor:
ACK 935973b315fa3b99f5e79b360bcb66f473bb7b95
Tree-SHA512: cc5b405e39387673fa2fd1e96680295b6eb3dc49a5f9a4d288580b8ea83efba04c96132811ca2cec14bcca509dbaf20c390cd47dabeea2a6ebc973e364e7a43b
The default max file size for LevelDB is 2 MiB, which results in the
LevelDB compaction code generating ~4 disk cache flushes per second when
syncing with the Bitcoin network.
These disk cache flushes are triggered by fdatasync() syscall issued by the
LevelDB compaction code when reaching the max file size.
If the database is on a HDD this flush rate brings the whole system to a
crawl.
It also results in very slow throughput since 2 MiB * 4 flushes per second
is about 8 MiB / second max throughput, while even an old HDD can pull
100 - 200 MiB / second streaming throughput.
Increase the max file size for LevelDB to 32 MiB instead so the flush rate
drops significantly and the system no longer gets so sluggish.
The new max file size value chosen is a compromise between the one that
works best for HDD and SSD performance, as determined by benchmarks done by
various people.
160799d9135528dbdea40690f0bb0d56c6c4803a test: refactor: introduce `create_ephemeral_dust_package` helper (Sebastian Falbesoner)
61e18dec306cfb8bc17ad2133ea1867b78000c62 doc: ephemeral policy: add missing closing double quote (Sebastian Falbesoner)
Pull request description:
This small PR contains ephemeral dust follow-ups mentioned in #30329 that were not tackled in the first follow-up PR #31279:
https://github.com/bitcoin/bitcoin/pull/30239#discussion_r1828577696https://github.com/bitcoin/bitcoin/pull/30239#discussion_r1825279952
Happy to add more if I missed some or anyone has concrete commits to add.
ACKs for top commit:
rkrux:
tACK 160799d9135528dbdea40690f0bb0d56c6c4803a
instagibbs:
ACK 160799d9135528dbdea40690f0bb0d56c6c4803a
tdb3:
Code review ACK 160799d9135528dbdea40690f0bb0d56c6c4803a
Tree-SHA512: e9a80c6733f1e7fe9e834d81b404f6e8ef7a61fe986f61b3dcdbda1a0bc547145fc279ec02f54361df56cb4e62a6fedaa0f3991c6e084c3a703ed1b1bfbdbe4e
ee6185372fc317d3948690997117e42f6b79a5ff gen-manpages: Prompt error if no binaries are found (Andre)
299e2220e9546e7dca1ba5e56bdcfbbf97530fba gen-manpages: implement --skip-missing-binaries (Andre Alves)
Pull request description:
Instead of stopping the execution of gen-manpages.py when a binary is not found, continue generating manpages for the available binaries and skip the missing ones.
A new argument, `--skip-missing-binaries`, has been added to enable this behavior.
```sh
➜ bitcoin git:(fix-gen-manpages) ✗ ./contrib/devtools/gen-manpages.py --help
usage: gen-manpages.py [-h] [-s]
options:
-h, --help show this help message and exit
-s, --skip-missing-binaries
skip generation for binaries that are not found
```
closes#30985
This PR also includes an error prompt if no binaries are found in the build path.
ACKs for top commit:
achow101:
ACK ee6185372fc317d3948690997117e42f6b79a5ff
laanwj:
re-ACK ee6185372fc317d3948690997117e42f6b79a5ff
Tree-SHA512: af4a0a5e26e508a51ab63f8aa9f98a6d6af9d7682a16791d8a6a61d49e44cb0147453f628ad5910f65d4efa6e3c7b6605c007259c23230b54888845bfaeb050c
37a5c5d83664c31d83fc649d3c8c858bd5f10f21 doc: update descriptors.md for getdescriptoractivity (James O'Beirne)
ee3ce6a4f4d35afe7fcab16eff419a6788b02170 test: rpc: add no address case for getdescriptoractivity (James O'Beirne)
811f76f3a511d20750046319b390e225a1151caa rpc: add getdescriptoractivity (James O'Beirne)
25fe087de59e967ce968d35ed77138325eb9a9fa rpc: move-only: move ScriptPubKeyDoc to utils (James O'Beirne)
Pull request description:
The RPC command `scanblocks` provides a useful way to get a set of blockhashes that have activity relevant to a set of descriptors (`relevant_blocks`). However actually extracting the activity from those blocks is left as an exercise to the end user.
This process involves not only generating the (potentially ranged) set of scripts for the descriptor set on the client side (maybe via `deriveaddresses`), but then the user must retrieve each block's contents one-by-one using `getblock <hash>`, which is transmitted over a network link. And that's all before they perform the actual search over block content. There's even more work required to incorporate unconfirmed transactions.
This PR introduces an RPC `getdescriptoractivity` that [dovetails](https://bitcoin-irc.chaincode.com/bitcoin-core-dev/2024-08-16#1046393;) with `scanblocks` output, handling the process described above. Users specify the blockhashes (perhaps from `relevant_blocks`) and a set of descriptors; they are then given all spend/receive activity in that set of blocks.
This is a very useful tool when implementing lightweight wallets that want neither to require a third-party indexer like electrs, nor the overhead of creating and managing watch-only wallets in Core. This allows Core to be more easily used in a "stateless" manner by wallets, with potentially many nodes interchangeably acting as backends.
### Example usage
```
% ./src/bitcoin-cli scanblocks start \
'["addr(bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t)"]' \
857263
{
"from_height": 857263,
"to_height": 858263,
"relevant_blocks": [
"00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88",
"00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb"
],
"completed": true
}
% ./src/bitcoin-cli getdescriptoractivity \
'["00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88", "00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb"]' \
'["addr(bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t)"]'
{
"activity": [
{
"type": "receive",
"amount": 0.00002900,
"blockhash": "00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88",
"height": 857907,
"txid": "c9d34f202c1f66d80cae76f305350f5fdde910b97cf6ae6bf79f5bcf2a337d06",
"vout": 254,
"output_spk": {
"asm": "1 7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b",
"desc": "rawtr(7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b)#yewcd80j",
"hex": "51207e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b",
"address": "bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t",
"type": "witness_v1_taproot"
}
},
{
"type": "spend",
"amount": 0.00002900,
"blockhash": "00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb",
"height": 858260,
"spend_txid": "7f61d1b248d4ee46376f9c6df272f63fbb0c17039381fb23ca5d90473b823c36",
"spend_vin": 0,
"prevout_txid": "c9d34f202c1f66d80cae76f305350f5fdde910b97cf6ae6bf79f5bcf2a337d06",
"prevout_vout": 254,
"prevout_spk": {
"asm": "1 7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b",
"desc": "rawtr(7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b)#yewcd80j",
"hex": "51207e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b",
"address": "bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t",
"type": "witness_v1_taproot"
}
}
]
}
```
ACKs for top commit:
instagibbs:
reACK 37a5c5d83664c31d83fc649d3c8c858bd5f10f21
achow101:
ACK 37a5c5d83664c31d83fc649d3c8c858bd5f10f21
tdb3:
Code review and light retest ACK 37a5c5d83664c31d83fc649d3c8c858bd5f10f21
rkrux:
re-ACK 37a5c5d83664c31d83fc649d3c8c858bd5f10f21
Tree-SHA512: 04aa51e329c6c2ed72464b9886281d5ebd7511a8a8e184ea81249033a4dad535a12829b1010afc2da79b344ea8b5ab8ed47e426d0bf2eb78ab395d20b1da8dbb
e8f50c5debe2b866e59872dbbf22db0fd592ec04 guix: swap moreutils for just sponge (fanquake)
Pull request description:
Switch to building the only `moreutils` utility we actually need (`sponge`). This results in having less unused stuff in the Guix environment (i.e all the other `moreutils` utilities), and, the dependency graph is simplified. i.e we no-longer have a dependency on `perl`, `docbook` etc, for this package.
Current `moreutils` dependency graph:
In the Guix env, `chronic`, `combine`, `errno`, `ifdata`, `ifne`, `isutf8`, `lckdo`, `mispipe`, `parallel`, `pee`, `ts`, `vidir`, `vipe` & `zrun` (plus their `*.real` variants) are removed.
ACKs for top commit:
hebasto:
ACK e8f50c5debe2b866e59872dbbf22db0fd592ec04.
TheCharlatan:
Re-ACK e8f50c5debe2
Tree-SHA512: 3687ec4a821ff79c26ee839d2af879166edb7e179287a9574eca8fbf34bed1fea8fcdad822a2140d0a0089e1820f3fef29a6100e0e8da788896e1f7bac5ec3e6
ee1128ead846698db5e5633f193883837f2fbc64 doc: update stack-clash-protection comment re mingw-w64 (fanquake)
bf47448f152316145d9abb9b8abc3b564194fe46 test: drop check for Windows < 10 (fanquake)
35b898c47f8af6807c4a5f404af165c663c81a99 release: target Windows 10 or later (fanquake)
398754e70bc96b86ad0327fbe70fafdf27bb4e35 depends: target Windows 10 when building for mingw-w64 (fanquake)
Pull request description:
Follows up to https://github.com/bitcoin/bitcoin/pull/31048#discussion_r1803165670.
We definitely cannot claim that Bitcoin Core is "supported and extensively tested on" on Windows 7.
Note that #30997 is also increasing the minimum required Windows version (for the GUI) to 10.
ACKs for top commit:
hodlinator:
cr-ACK ee1128ead846698db5e5633f193883837f2fbc64
davidgumberg:
ACK ee1128ead8
achow101:
ACK ee1128ead846698db5e5633f193883837f2fbc64
hebasto:
re-ACK ee1128ead846698db5e5633f193883837f2fbc64, only rebased, a commit message and a comment have been amended since my recent [review](https://github.com/bitcoin/bitcoin/pull/31172#pullrequestreview-2415452160).
TheCharlatan:
ACK ee1128ead846698db5e5633f193883837f2fbc64
Tree-SHA512: 245e0bac3d63414d919a1948661fef4ff79359faaacaf19d64abd91cc62e822797fb1cf3379e340bfdf9a85c0b88fd99a90eda450dd4218b6213ab78aefb1374
11f3bc229ccd4b20191855fb1df882cfa6145264 refactor: Reserve vectors in fuzz tests (Lőrinc)
152fefe7a22b7da3cfe2815083634bece9c5654e refactor: Preallocate PrevectorFillVector(In)Direct without vector resize (Lőrinc)
a774c7a339c26b1409c9a9572d2b52810ee64062 refactor: Fix remaining clang-tidy performance-inefficient-vector errors (Lőrinc)
Pull request description:
PR inspired by https://github.com/bitcoin/bitcoin/pull/29608#issuecomment-2437847307 (and https://github.com/bitcoin/bitcoin/pull/29458, https://github.com/bitcoin/bitcoin/pull/29606, https://github.com/bitcoin/bitcoin/pull/29607, https://github.com/bitcoin/bitcoin/pull/30093).
The `clang-tidy` check can be run via:
```bash
cmake -B build -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DBUILD_FOR_FUZZING=ON && cmake --build build -j$(nproc)
run-clang-tidy -quiet -p build -j $(nproc) -checks='-*,performance-inefficient-vector-operation' | grep -v 'clang-tidy'
```
which revealed 3 tests and 1 prod warning (+ fuzz and benching, found by hebasto).
Even though the tests aren't performance critical, getting rid of these warnings (for which the checks were already enabled via https://github.com/bitcoin/bitcoin/blob/master/src/.clang-tidy#L18, see below), the fix was quite simple.
<details>
<summary>clang-tidy -list-checks</summary>
```bash
cd src && clang-tidy -list-checks | grep 'vector'
performance-inefficient-vector-operation
```
</details>
<details>
<summary>Output before the change</summary>
```
src/test/rpc_tests.cpp:434:9: error: 'emplace_back' is called inside a loop; consider pre-allocating the container capacity before the loop [performance-inefficient-vector-operation,-warnings-as-errors]
433 | for (int64_t i = 0; i < 100; i++) {
434 | feerates.emplace_back(1 ,1);
| ^
src/test/checkqueue_tests.cpp:366:13: error: 'emplace_back' is called inside a loop; consider pre-allocating the container capacity before the loop [performance-inefficient-vector-operation,-warnings-as-errors]
365 | for (size_t i = 0; i < 3; ++i) {
366 | tg.emplace_back(
| ^
src/test/cuckoocache_tests.cpp:231:9: error: 'emplace_back' is called inside a loop; consider pre-allocating the container capacity before the loop [performance-inefficient-vector-operation,-warnings-as-errors]
228 | for (uint32_t x = 0; x < 3; ++x)
229 | /** Each thread is emplaced with x copy-by-value
230 | */
231 | threads.emplace_back([&, x] {
| ^
src/rpc/output_script.cpp:127:17: error: 'push_back' is called inside a loop; consider pre-allocating the container capacity before the loop [performance-inefficient-vector-operation,-warnings-as-errors]
126 | for (unsigned int i = 0; i < keys.size(); ++i) {
127 | pubkeys.push_back(HexToPubKey(keys[i].get_str()));
| ^
```
And the fuzz and benchmarks, noticed by hebasto: https://github.com/bitcoin/bitcoin/pull/31305#issuecomment-2483124499
</details>
ACKs for top commit:
maflcko:
review ACK 11f3bc229ccd4b20191855fb1df882cfa6145264 🎦
achow101:
ACK 11f3bc229ccd4b20191855fb1df882cfa6145264
theuni:
ACK 11f3bc229ccd4b20191855fb1df882cfa6145264
hebasto:
ACK 11f3bc229ccd4b20191855fb1df882cfa6145264, tested with clang 19.1.5 + clang-tidy.
Tree-SHA512: 41691c19f35c63b922a95407617a54f9bff1af3f95f99d15642064f321df038aeb1ae5f061f854ed913f69036807cc28fa6222b2ff4c24ef43b909027fa0f9b3
