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test: check LoadBlockIndex correctly recomputes invalidity flags

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Add a test for block index transitioning from legacy
BLOCK_FAILED_CHILD to BLOCK_FAILED_VALID behavior.

In the scenario where a valid block has a BLOCK_FAILED_CHILD
parent and a BLOCK_FAILED_VALID grandparent, ensure that all
three blocks are correctly marked as BLOCK_FAILED_VALID
after reloading the block index.
This commit is contained in:
stratospher
2025-10-08 15:23:53 +05:30
parent 29740c06ac
commit fb3e1bf9c9
1 changed files with 25 additions and 0 deletions
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25
src/test/validation_chainstatemanager_tests.cpp
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@@ -591,6 +591,31 @@ BOOST_FIXTURE_TEST_CASE(chainstatemanager_loadblockindex, TestChain100Setup)
BOOST_CHECK_EQUAL(cs2.setBlockIndexCandidates.size(), num_indexes - last_assumed_valid_idx + 1);
}
BOOST_FIXTURE_TEST_CASE(loadblockindex_invalid_descendants, TestChain100Setup)
{
LOCK(Assert(m_node.chainman)->GetMutex());
// consider the chain of blocks grand_parent <- parent <- child
// intentionally mark:
// - grand_parent: BLOCK_FAILED_VALID
// - parent: BLOCK_FAILED_CHILD
// - child: not invalid
// Test that when the block index is loaded, all blocks are marked as BLOCK_FAILED_VALID
auto* child{m_node.chainman->ActiveChain().Tip()};
auto* parent{child->pprev};
auto* grand_parent{parent->pprev};
grand_parent->nStatus = (grand_parent->nStatus | BLOCK_FAILED_VALID);
parent->nStatus = (parent->nStatus & ~BLOCK_FAILED_VALID) | BLOCK_FAILED_CHILD;
child->nStatus = (child->nStatus & ~BLOCK_FAILED_VALID);
// Reload block index to recompute block status validity flags.
m_node.chainman->LoadBlockIndex();
// check grand_parent, parent, child is marked as BLOCK_FAILED_VALID after reloading the block index
BOOST_CHECK(grand_parent->nStatus & BLOCK_FAILED_VALID);
BOOST_CHECK(parent->nStatus & BLOCK_FAILED_VALID);
BOOST_CHECK(child->nStatus & BLOCK_FAILED_VALID);
}
//! Ensure that snapshot chainstate can be loaded when found on disk after a
//! restart, and that new blocks can be connected to both chainstates.
BOOST_FIXTURE_TEST_CASE(chainstatemanager_snapshot_init, SnapshotTestSetup)