test: assumeutxo file with unknown block hash #28666

1. 
   fjahr commented at 3:01 pm on October 17, 2023: contributor

   Takes care of one of the open Todos in the assumeutxo functional test. Since an unknown block could be any hash, I simply chose one placeholder, it could also be a random string though.
2. 
   DrahtBot commented at 3:01 pm on October 17, 2023: contributor

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   ACK	maflcko, pablomartin4btc, theStack, ryanofsky

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #28659 (assumeutxo, rpc: Add ‘start’ parameter to loadtxoutset by hernanmarino)

   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.

3. DrahtBot added the label Tests on Oct 17, 2023
4. in test/functional/feature_assumeutxo.py:84 in 5958f7b86f outdated

   78@@ -80,6 +79,14 @@ def test_invalid_snapshot_scenarios(self, valid_snapshot_path):
   79         error_details = f"assumeutxo block hash in snapshot metadata not recognized ({bad_snapshot_block_hash})"
   80         assert_raises_rpc_error(-32603, f"Unable to load UTXO snapshot, {error_details}", self.nodes[1].loadtxoutset, bad_snapshot_path)
   81 
   82+        self.log.info("  - snapshot file refering to a block that is unknown")
   83+        # Represents any unknown block hash
   84+        bogus_block_hash = "0" * 64
   

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   maflcko commented at 3:06 pm on October 17, 2023:

   nit: Could use a for-loop, as this code is copied from above and testing the exactly same thing?

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   fjahr commented at 3:13 pm on October 17, 2023:

   mostly, I guess having a different log output isn’t that essential though, so using a loop now
5. 
   maflcko commented at 3:06 pm on October 17, 2023: member

   lgtm ACK 5958f7b86fb9e11406552cdf7b55055cf65d202b
6. test: assumeutxo file with unknown block hash 621db2f004
7. fjahr force-pushed on Oct 17, 2023
8. 
   maflcko commented at 3:14 pm on October 17, 2023: member

   lgtm ACK 621db2f00486d8fd6f06dca91c1b95ce61f64bc4
9. fanquake added this to the milestone 26.0 on Oct 17, 2023
10. in test/functional/feature_assumeutxo.py:76 in 621db2f004

    77-            # block hash of the snapshot base is stored right at the start (first 32 bytes)
    78-            f.write(bytes.fromhex(bad_snapshot_block_hash)[::-1] + valid_snapshot_contents[32:])
    79-        error_details = f"assumeutxo block hash in snapshot metadata not recognized ({bad_snapshot_block_hash})"
    80-        assert_raises_rpc_error(-32603, f"Unable to load UTXO snapshot, {error_details}", self.nodes[1].loadtxoutset, bad_snapshot_path)
    81+        prev_block_hash = self.nodes[0].getblockhash(SNAPSHOT_BASE_HEIGHT - 1)
    82+        bogus_block_hash = "0" * 64  # Represents any unknown block hash
    

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    pablomartin4btc commented at 3:40 pm on October 17, 2023:

    This is good. nit:

    0        bogus_block_hash = "0" * 64  # Represents any invalid/ not recognized block hash
    

11. 
    pablomartin4btc commented at 3:40 pm on October 17, 2023: contributor

    cr ACK 621db2f00486d8fd6f06dca91c1b95ce61f64bc4
12. theStack approved
13. 
    theStack commented at 3:47 pm on October 17, 2023: contributor

    ACK 621db2f00486d8fd6f06dca91c1b95ce61f64bc4
14. ryanofsky approved
15. 
    ryanofsky commented at 4:12 pm on October 17, 2023: contributor

    Code review ACK 621db2f00486d8fd6f06dca91c1b95ce61f64bc4
16. maflcko assigned ryanofsky on Oct 18, 2023
17. ryanofsky merged this on Oct 18, 2023
18. ryanofsky closed this on Oct 18, 2023

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Contributors
fjahr DrahtBot maflcko pablomartin4btc theStack ryanofsky

Labels
Tests

Milestone
26.0