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Test multi-algo chainwork continuity

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Capri 2026-09-17 17:15:27 +00:00
commit 74ef53ae3d
Signed by: VextaProject
SSH key fingerprint: SHA256:739BZv8LvIDY2tR7lXLy/IQ6MaGTQtYcG9GNvCjmpVM
1 changed files with 26 additions and 0 deletions
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26
src/test/pow_tests.cpp
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@ -149,6 +149,32 @@ BOOST_AUTO_TEST_CASE(MultiAlgo_chainwork_normalization_test)
GetBlockProof(shaChild, consensus) == GetBlockProof(shaChild, consensus) ==
GetBlockProof(randomXChild, consensus)); GetBlockProof(randomXChild, consensus));
// A fixed branch-independent rational scale can preserve chainwork
// continuity across the activation boundary. Derive an exact scale for
// this synthetic test state only; production parameters are configured
// separately in chainparams.
const arith_uint256 preActivationWork =
GetBlockProof(blocks[39], consensus);
const arith_uint256 unscaledPostActivationWork =
GetBlockProof(shaChild, consensus);
BOOST_REQUIRE(preActivationWork > 0);
BOOST_REQUIRE(unscaledPostActivationWork > 0);
BOOST_REQUIRE_LE(preActivationWork.bits(), 32U);
BOOST_REQUIRE_LE(unscaledPostActivationWork.bits(), 32U);
consensus.multiAlgoChainworkScaleNumerator =
static_cast<uint32_t>(preActivationWork.GetLow64());
consensus.multiAlgoChainworkScaleDenominator =
static_cast<uint32_t>(unscaledPostActivationWork.GetLow64());
BOOST_CHECK(
GetBlockProof(shaChild, consensus) ==
preActivationWork);
BOOST_CHECK(
GetBlockProof(randomXChild, consensus) ==
preActivationWork);
} }