rpcsrv: fix RPC error codes proposal compatibility #3360
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Avoid mempool conflicts in tests. Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
mempool.ErrInsufficientFunds is used when sender doesn't have enough balance to pay the submitted transaction fees (-511 code according to neo-project/proposals#156). mempool.ErrConflict is used when sender is not able to pay the overall transactions fee sum in the pool (generic -500 error according to the proposal). This bugfix is kind of breaking change for those users who relied on the old -511 code previously returning "insufficient funds" error. Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #3360 +/- ##
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- Coverage 84.68% 84.66% -0.02%
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Files 331 331
Lines 44935 44935
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- Hits 38053 38045 -8
- Misses 5370 5376 +6
- Partials 1512 1514 +2 ☔ View full report in Codecov by Sentry. |
roman-khimov
approved these changes
Mar 18, 2024
Can be both, start with issue and then we'll see. It's a relatively minor problem to me, not a 3.7 must have. |
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Problem
Implementation doesn't match neo-project/proposals#156 wrt mempool-related transaction fee check on submitting new transaction to the node. Thanks to @carpawell for pointing that out.
Solution
Fix the implementation.
@roman-khimov, I'd like to highlight: whereas it's quite easy to fix this compatibility problem on our side, C# node has the same divergence from the standard and requires more changes to fix it:
TransactionVerificationContext.CheckTransactionshould be adjusted to return some new special error, this error should be detached fromVerifyResult.InsufficientFundsand ported to other components (ref. https://github.com/neo-project/neo/blob/b05501af882a0d1f2a1a7841c6ddc4d0504e5fc1/src/Neo/Network/P2P/Payloads/Transaction.cs#L368).I may port it to C# or create an issue about it, what would we prefer?