Fuzz: Check individual and package transaction invariants #28764

1. 
   instagibbs commented at 7:10 pm on October 31, 2023: member

   Poached from #26711 since that PR is being split apart, and modified to match current behavior.
2. fuzz: tx_pool checks ATMP result invariants 651fa404e4
3. 
   DrahtBot commented at 7:10 pm on October 31, 2023: contributor

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   ACK	glozow, dergoegge

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #26711 (validate package transactions with their in-package ancestor sets by glozow)

   If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

4. DrahtBot added the label Tests on Oct 31, 2023
5. fanquake requested review from dergoegge on Oct 31, 2023
6. DrahtBot added the label CI failed on Oct 31, 2023
7. in src/test/util/txmempool.h:47 in 76bbd9e871 outdated

   42+ * false if an error occurs, true otherwise.  String s will be populated with an error message if
   43+ * the return value is false.  If mempool is provided, checks that the expected transactions are in
   44+ * mempool (this should be set to nullptr for a test_accept).
   45+*/
   46+bool CheckPackageMempoolAcceptResult(const Package& txns, const PackageMempoolAcceptResult& result, bool expect_valid,
   47+                                            const CTxMemPool* mempool, std::string& s);
   

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   dergoegge commented at 10:03 am on November 1, 2023:

   0std::optional<std::string> CheckPackageMempoolAcceptResult(const Package& txns, const PackageMempoolAcceptResult& result, bool expect_valid,
   1                                            const CTxMemPool* mempool);
   

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   instagibbs commented at 2:06 pm on November 1, 2023:

   taken, thanks
8. instagibbs force-pushed on Nov 1, 2023
9. DrahtBot removed the label CI failed on Nov 1, 2023
10. in src/test/util/txmempool.cpp:42 in c1319395f7 outdated

    36@@ -36,3 +37,78 @@ CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CTransactionRef& tx) const
    37 {
    38     return CTxMemPoolEntry{tx, nFee, TicksSinceEpoch<std::chrono::seconds>(time), nHeight, m_sequence, spendsCoinbase, sigOpCost, lp};
    39 }
    40+
    41+std::optional<std::string> CheckPackageMempoolAcceptResult(const Package& txns, const PackageMempoolAcceptResult& result, bool expect_valid,
    42+                                     const CTxMemPool* mempool)
    

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    glozow commented at 1:19 pm on November 2, 2023:

    c1319395f74c0016b367e860050c0ff5a99dea85 nit: the whitespace here is weird, should probably align with parentheses

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    instagibbs commented at 1:35 pm on November 2, 2023:

    realigned
11. 
    glozow commented at 1:22 pm on November 2, 2023: member

    ACK b847d48f70b5a67263c362f9d28ee6d092068e27, thanks for shaving!
12. glozow requested review from dergoegge on Nov 2, 2023
13. [test util] CheckPackageMempoolAcceptResult for sanity-checking results 34088d6c9e
14. Use CheckPackageMempoolAcceptResult for package evaluation fuzzing fcb3069fa3
15. instagibbs force-pushed on Nov 2, 2023
16. 
    glozow commented at 3:51 pm on November 2, 2023: member

    reACK fcb3069fa307942cf7f3edabcda1be96d615c91f, only whitespace changes
17. dergoegge approved
18. 
    dergoegge commented at 10:51 am on November 3, 2023: member

    ACK fcb3069fa307942cf7f3edabcda1be96d615c91f
19. glozow merged this on Nov 3, 2023
20. glozow closed this on Nov 3, 2023

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Contributors
instagibbs DrahtBot dergoegge glozow

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