test: assumeutxo: spend coin from snapshot chainstate after loading#29215
Merged
glozow merged 1 commit intobitcoin:masterfrom Jan 10, 2024
Conversation
Check that an UTXO that is only available in the snapshot chainstate is also visible to the mempool by submitting a spending transaction.
Contributor
|
The following sections might be updated with supplementary metadata relevant to reviewers and maintainers. Code CoverageFor detailed information about the code coverage, see the test coverage report. ReviewsSee the guideline for information on the review process.
If your review is incorrectly listed, please react with 👎 to this comment and the bot will ignore it on the next update. |
Member
|
lgtm ACK 9315754 |
Contributor
|
ACK 9315754 Tested locally. Thanks, stackman! |
theStack
deleted the
202401-test-assumeutxo-spend_coin_from_snapshot_chainstate
branch
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
5 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR extends the AssumeUTXO functional test by submitting a spending transaction for an UTXO that is only available in a the snapshot chainstate (after loading via
loadtxoutset), i.e. it hasn't been seen in a block before. With that we can verify that snapshot coins are visible to the mempool.Note that we unfortunately can't use MiniWallet here, as the only available UTXO to spend from the snapshot chainstate is at height 200, where a P2PKH created from the test framework's deterministic private key is used (see
TestNode.generate(...)and thePRIV_KEYSarray). Coinbase outputs with smaller heights (<= 199) would be part of the pre-generated chain and hence not qualify for the "UTXO is only in snapshot chainstate and has never been seen in a block" scenario, coinbase outputs with larger heights (>= 201) can't be spent due to immaturity, as the snapshot chainstate block height is 299.One could of course mine a different chain with outputs that MiniWallet supports (e.g. taproot anyone-can-spend), but this would change the hardcoded AssumeUTXO hash, colliding with other PRs like #28838, so I wanted to avoid that.