Merge bitcoin/bitcoin#23681: test: Remove false coinstatsindex test

c055f6b216659b844c8dcd4ff2a977f181099678 test: Remove false coinstatsindex test (Fabian Jahr)

Pull request description:

  This test never actually tested the behavior that it describes in the comments. This was discovered in #21590 which seems to speed up muhash which lead to the test failing.

  I can vaguely remember that the described behavior was desired by some reviewers of `coinstatsindex`: That `coinstatsindex` should be aware of stale blocks and able to return statistics on them as well. The index actually does this for blocks that it sees while the index is active, i.e. while running `coinstatsindex` all blocks will be indexed and even when they become stale the index (via `gettxoutsetinfo`) will still return a result for them when given the right hash. But this currently does not work for blocks that the node saw and that became stale _before_ the node activated `coinstatsindex`. While the index syncs initially everything but the active chain is ignored and I don't see any indication that this ever worked differently in the past.

  Introducing this behavior seems non-trivial at first glance so, while I will give this a shot, I think the test should be removed so it does not confuse users and does not block #21590.

Top commit has no ACKs.

Tree-SHA512: b05f5dfeea3e453c8bb7c761501d0d896d4412a3f0c08037955951fae9fe388c63402da401792591e18da8fb67734f47f1a297d573cdb66e0ced451698718067

1 files changed, 0 insertions, 8 deletions

diff --git a/test/functional/feature_coinstatsindex.py b/test/functional/feature_coinstatsindex.py
index 19bb908b64..8afd0ff74a 100755
--- a/test/functional/feature_coinstatsindex.py
+++ b/test/functional/feature_coinstatsindex.py
@@ -276,14 +276,6 @@ class CoinStatsIndexTest(BitcoinTestFramework):
         res3 = index_node.gettxoutsetinfo(hash_type='muhash', hash_or_height=112)
         assert_equal(res2, res3)
 
-        self.log.info("Test that a node aware of stale blocks syncs them as well")
-        node = self.nodes[0]
-        # Ensure the node is aware of a stale block prior to restart
-        node.getblock(reorg_block)
-
-        self.restart_node(0, ["-coinstatsindex"])
-        assert_raises_rpc_error(-32603, "Unable to get data because coinstatsindex is still syncing.", node.gettxoutsetinfo, 'muhash', reorg_block)
-
     def _test_index_rejects_hash_serialized(self):
         self.log.info("Test that the rpc raises if the legacy hash is passed with the index")